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Showing posts from February, 2025

Nanostructure-aligned transparent stretchable substrates without image distortion could revolutionize next-generation displays

https://www.eurekalert.org/news-releases/1075146 "scalable... overcomes distorted screens due to Poisson's ratio phenomenon, and poor fit, light scattering... block copolymers of both stiff and soft polystyrene arranged in 1 direction maximizing elasticity difference  between parallel/ perpendicular directions to reduce shrinkage with Poisson's ratio 0.07 or less... shear-rolling process aligns nanostructures evenly, speed differences between rollers/ stages apply uniform high temperature shear force... substrate vertically stretchable >50%... wearables, solar cells"

High color purity quantum dots enable QLEDs with record external quantum efficiency/ exceptional luminescence and operational stability

https://www.eurekalert.org/news-releases/1075363 "facile high-temperature successive ion layer adsorption and reaction grows high-quality, large-particle, alloyed red quantum dots... alleviates compressive strain, suppresses heavy-hole energy band splitting, weakens exciton-phonon coupling, enhancing luminescence color purity... Zn₁₋â‚“Cdâ‚“Se/ZnSe/ZnS shells confine carriers within luminescent core, boosting photoluminescence quantum yield, and surface defects passivized facilitating hole injection, achieving more balanced carrier recombination in the QLEDs"

First continuous-variable integrated photonic on-chip quantum multipartite entanglement achieved with optical microcomb

https://phys.org/news/2025-02-chip-multipartite-entanglement-optical-microcomb.html "scalable... optical microcomb: polychromatic pump/ polychromatic homodyne detection produce multimode squeezed-vacuum optical frequency combs below parametric oscillation threshold, demonstrating the chip-scale deterministic generation... multipartite entanglement reconfiguration: tailoring local oscillator beams to generate various cluster-type 4-qumode linear-, box- and star-, 6-qumode linear-type, and continuous-variable cluster-style-type entanglement structure... quantum: computation, networking, metrology, sensing"

High-speed super-resolution 3D direct laser writing for fabricating precision micro-optical devices and metamaterials

https://www.eurekalert.org/news-releases/1075202 "laser written lines spaced 100 nm apart on glass substrate... focused laser selectively solidify/ polymerize... dual-beam with special photoresist... 100 µm/s printing speeds, but at 1000 μm/s, a 120-nm lateral resolution still achieved... printing optical waveguide devices for VR/ AR displays with precise, high-resolution structuring... microlenses, photonic crystals, micro-optical devices, metamaterials"

High-power-efficiency and ultra-long-lifetime white OLEDs empowered by robust blue multi-resonance TADF emitters

https://www.eurekalert.org/news-releases/1075210 "white OLEDs: flexible, energy efficient, eye-protective, but unstable blue emitters/ inefficient use of triplet excitons... overcome integrating blue MR-TADF emitters with rigid Ï€-conjugated core skeleton blue component in emitting layer with red component... optimized exciton recombination zone, stablized white light emission, achieving 34.4% maximum external quantum efficiency, 101.8 lm/W power efficiency, 761 hours at 1000 cd/m² LT90 luminance lifetime... enables mass commercialization... lighting and display"

Aligning all-inorganic perovskite nanocrystals enhances solar-cell efficiency and LED performance

https://phys.org/news/2025-02-techniques-aligning-nanocrystals-solar-cell.html "cubic cesium lead bromide nanocrystals arranged single-layer on APS-coated quartz substrate... substrates bonded with bottom face of each nanocrystal, disrupting material's symmetry causing electronic states to be vertically aligned, improving adhesion/ altering transition dipole moment orientation in monolayer, achieving high uniformity/ anisotropic behavior... lasers, electronic devices, bioimaging, solar cells with optimized light absorption, LEDs with precisely controlled light polarization enhancing displays"

GT Wings' AirWing generates 10X the thrust of conventional ship sails, despite being smaller in size

https://www.impactlab.com/2025/02/26/the-airwing-a-groundbreaking-wind-powered-solution-to-clean-up-shipping-emissions/    "actively sucks in air/ uses fan power amplifying thrust generated by wind flowing through it... easy retrofitting... cuts ship’s fuel usage 30%... trials begin March 2025... combination of Bernoulli’s Principle, Venturi Effect... computational fluid dynamics simulations optimized wing’s aspect ratio, camber, twist across various wind conditions... strong support from UK government... global shipping"

Low-energy challenger to the quantum computer that also works at room temperature

https://www.eurekalert.org/news-releases/1074418 "information transmitted using magnetic wave motion in complex networks... external stimuli used in spintronics also create/ control spin waves/ ripples in material's magnetization travelling with specific phase/ energy, enabling phase controlled mutual synchronization between 2 spin-Hall nano-oscillators... spin waves mediate both in/ out of phase between oscillators, enabling next-gen Ising machines, an alternative to quantum computers, although best guess/ not exact answers for combinatorial optimisation problems"

Nanomanufacturing and 3D printing advanced electronics and chips: faster and less resource intensive; with costs slashed 99%

https://techxplore.com/news/2025-02-nanomanufacturing-slashes-chip-production.html#google_vignette "fabrication facilities worldwide overall currently cost $20 - $40 billion to build and then $1 billion to operate annually., 6 - 12 months to get chip made, repeated for development revision... no need for vacuum or high temperatures... additive using very small particles, bottom up silicon microprocessors/ memory chips... 3D print structures down to 25 nm in 1 minute, over large area... give 3D printing shop your chip design, get made same or next day or same week, then do further development, and then scale it up"

Composite metal foam strong/ durable like steel, lightweight like aluminum, highly resistant to ballistic impacts, fire, and radiation

https://www.impactlab.com/2025/02/25/composite-metal-foam-a-breakthrough-material-ready-for-mass-production/#more-167050 "low density: air bubbles embedded in alloy of steel, titanium, aluminum, other... absorbs 72-75% of kinetic energy from ball rounds/ 68-78% from armor-piercing rounds... <50% weight of rolled homogeneous steel armor needed to achieve same protection... exposed to 1472°F flame, takes 2X longer reaching same temperature as stainless steel... X, gamma, neutron radiation shielding... space exploration, shipping nuclear waste/ explosives/ hazardous materials, military/ security, cars, buses, trains... full-scale production-ready" Related: Superelastic alloy that functions in extreme temperatures could aid space exploration https://techxplore.com/news/2025-02-superelastic-alloy-functions-extreme-temperatures.html#google_vignette Nanoscale tweaks help alloy withstand high-speed impacts https://techxplore.com/news/2025-03-nanoscale-tweaks-alloy-high-impacts.htm...

Mesoporous silicon semiconductors for photovoltaics; thermal insulation of nanoelectronics and quantum computer's qubits

https://www.eurekalert.org/news-releases/1074842 "mesoporous silicon layers etched with tiny pores, electrically/ thermally conductive... huge internal surface area, biocompatible... electronic transport in extended wave-like states... conductivity decreases with increasing disorder... in contrast to hopping process, lattice phonons do not play role in charge transport... cryogenic silicon-based qubits needing thermal insulation... photovoltaics, thermal management and nanoelectronics, qubits for quantum computers, biosensors, battery anodes, capacitors."

Multifunctional 2D field-effect transistor's incipient ferroelectricity could jumpstart fast, low-power computer memory

https://phys.org/news/2025-02-material-incipient-ferroelectricity-jumpstart-fast.html "can operate in extreme environments... ultra-thin layers controlling electric switching, sensing, memory, reversible when external electric field applied... temporary, scattered polarization that can switch charges like tiny dipoles without stabilizing when at room temperature, instead relaxor behavior: small scattered polar domain clusters... less incipient when colder... works at room temperature, reducing energy costs... learning method for image identification/ classification, pattern recognition... AI, neuromorphic computing"

Computational model optimizes electrical, thermal and mechanical behavior of 3D printed materials

https://www.eurekalert.org/news-releases/1074730 "conductive thermoplastics transmit electrical signals while providing structural support, but manufacture challenge controlling their internal structure due to bonding between filaments/ small cavities presence... 3D manufacture structures sensitive/ capable of transforming mechanical signals into electrical signals... enables use of softer materials, multifunctional material design... soft robotics, aerospace, biomedical/ infrastructure monitoring sensors that can obtain virtual data that can serve machine learning technologies"

Wearable bionic device mimics birds' extraordinary sight and uses almost no power, enabling more efficient and advanced machine vision

https://techxplore.com/news/2025-02-wearable-bionic-device-mimics-birds.html "quickly identifying/ classifying objects... combines advanced materials with neural networks... low-light condition capable, broadband non-volatile storage capabilities... seamlessly combines AI hardware with algorithms... specially oriented GaAs nanowire arrays combined with liquid-surface-assembled P3HT organic films to form van der Waals heterojunctions.... using reservoir computing to recognize moving object's shape, motion, color, UV grayscale... autonomous vehicles, robotics" Related: Neuromorphic system enhances machine vision in extreme lighting environments https://techxplore.com/news/2025-03-neuromorphic-machine-vision-extreme-environments.html

Battery electrode made from highly porous tin foam overcomes degradation due to mechanical stress during charging/ discharging

https://www.eurekalert.org/news-releases/1074689 "tin is abundant, does not expand when lithium is absorbed, capacity per kg almost 3X higher than graphite... tin foam with countless micrometre-sized pores... although tin foam is more expensive than conventional tin foil, it offers a cheaper alternative to expensive nanostructuring, while being able to store significantly more lithium ions, thus enabling an increase in capacity"

AI improves reliability of millimeter-wave networks of large groups of Multiple-Input Multiple-Output antennas working together

https://techxplore.com/news/2025-02-ai-powered-method-reliability-generation.html#google_vignette "require precise channel state information under channel aging effect conditions... transformer-assisted parametric CSI feedback sending key aspects (angles, delays, signal strength) instead of detailed signal information... AI transformer analyzes/ predicts short-/ long-term patterns in signal changes... precise beamforming makes real-time adjustments even when users moving quickly... >3.5 dB lower error, improved bit error rate... maritime networks, vehicle-to-everything"

New type of register using atoms inside a semiconductor quantum dot, with thousands of entangled nuclei to scale quantum networks

https://phys.org/news/2025-01-scientists-register-thousands-entangled-nuclei.html#google_vignette "stable, versatile optically connected qubits... many-body quantum register storing information locally over extended periods... 13K nuclear spin dark state collective with better coherence/ stability serving as 0 state of quantum register, 1 state as single nuclear magnon excitation single nuclear spin flip... nearly 69% storage fidelity, >130 ms coherence... polarizes nuclear spins in gallium arsenide QDs... applying quantum feedback overcoming uncontrolled nuclear magnetic interactions... communication, distributed computing"

Using a glass spacer instead of a vacuum in a thermophotovoltaic device doubles power density breaking Planck’s law

https://scitechdaily.com/scientists-just-doubled-power-output-by-breaking-a-thermal-limit/ "compact, scalable, cleaner, cheaper harnessing wasted heat for electricity without requiring extreme temperatures... zero-vacuum gap between thermal source/ solar cell: insulated, high index/ IR-transparent glass spacer createsing high power density... operates at 1,000°C, yields power equivalent to 1,400°C... even more power using amorphous silicon, potentially nearly 20X more increase... integrates into existing commercial processes...  manufacturing, portable power generators, renewable energy storage" Related: Rethinking Carnot: Scientists overcome traditional power-efficiency trade-off https://phys.org/news/2025-01-rethinking-carnot-scientists-traditional-power.html#google_vignette

Reviving aging lithium batteries by injecting a shot of lithium ions to extend their lifespans by decades

https://www.chinadaily.com.cn/a/202502/13/WS67adc96fa310c240449d515c.html "extending lifespan from 6-8 years or 1,000-1,500 charge cycles to 10,000 cycles or more... injecting specially designed molecule into degraded batteries to replenish lost lithium ions... working on scaling up production and partnering with global battery manufacturers to commercialize. If successfully deployed, this innovation could significantly impact industries that are reliant on lithium batteries, from consumer electronics to electric vehicles, by reducing waste, cutting costs, and improving sustainability"

Highly uniform perovskite nanocrystal semiconductors synthesized by liquid crystalline antisolvent

https://www.eurekalert.org/news-releases/1074499 "lower temperature, more uniform, efficient manufacture... molecules aligned to preferred orientation leading to elasticity, producing considerable elastic strains, enabling precisely controlled size/ shape using liquid crystal as antisolvent, then replacing antisolvent with iquid crystal maintaining other synthesis conditions... uniform-size mass production without additional purification... ligands bind more densely to surface during nanocrystals formation, minimizing surface defects/ enhancing luminescence... LEDs. solar cells, displays"

High-performance, scalable, sustainable thermoelectric materials 3D printed

https://ist.ac.at/en/news/cooling-materials-out-of-the-3d-printer/ "rapid, localized heat management, solid-state refrigerators... more efficient, less costly/ wasteful production... net cooling effect 50° in air, similar to ones significantly more expensive... as ink's carrier solvent evaporates, effective atomic bonds formed between grains, creating atomically connected material network, improving charge transfer between grains... extrusion-based  properties of porous materials... wearables, burn treatment,  muscle strain relief. high-temperature thermoelectric generators"

Self-imaging structured light in new dimensions for loss-less, crosstalk-free, increased data rate optical telecommunication

https://www.eurekalert.org/news-releases/1074557   "self-imaging Talbot effect in cylindrical systems facilitating light structure control... space-time duality bridging different fields of optics... 2 complementary ring-core fiber light travelling self-imaging:  angular position and orbital angular momentum... generalized self-imaging in time, periodic train of optical pulses/ corresponding frequency comb... strong link between angle/ angular momentum and time/frequency... tuned to encode, convert, decode information in light’s OAM values as independent communication channels"

Microcomb chips help pave the way for thousand times more accurate GPS systems

https://www.eurekalert.org/news-releases/1074404 "optical atomic clocks increase time. geographic position precision, but are too large/ complex... lasers instead of microwave frequencies to induce oscillations optically.,. enabling more time fractions, for few cm precision... a comb frequencies can be locked to laser frequency locked to atomic clock oscillation, bridging between clock optical signals and radio frequencies counting clock’s oscillations... pairing 2 microcombs  with a small frequency offset enabling more accessible radio frequency... photonic integration"

Rubidium-containing material with exceptional oxide-ion conductivity and stability for lower temperature/ cost solid oxide fuel cells

https://www.eurekalert.org/news-releases/1074416 "superior performance due to low activation energy, large free volume, tetrahedral motion... can run on hydrogen, natural gas, biogas, or certain liquid hydrocarbons... overcomes cost, durability, operating temperature range issues... crystalline Rb-containing oxides have larger lattice/ free volumes, leading to lower activation energy for oxide-ion conductivity... palmierite-type oxide materials exhibited low energy barrier for oxide-ion migration... oxide-ion conductivity 29X that of yttria-stabilized zirconia"

Bioinspired robot collectives that can act like solids or fluids on demand

https://www.eurekalert.org/news-releases/1073825 "mimics cell cooperation in embryonic tissue... supports 100s times own weight, yet at flip of switch flow freely to change form... internally regulate mechanical properties across space/ time... motorized gears, photoreceptors, rolling magnets.enable precise control over force fluctuations/ polarity... demonstrated robots forming pillars merginf into stable, load-bearing arch, also exhibiting fluidizing, closing defects... object manipulation, rigidifying into wrench exerting torque"

Silicon nitride ceramic negatively refractive electromagnetic metamaterial with perfect imaging and super absorption, has industrial potential

https://www.eurekalert.org/news-releases/1074368 "corrosion resistance, excellent comprehensive mechanical properties, high: insulation, thermal conductivity, temperature resistance... overcomes low production efficiency, restricted product shape/ size, poor toughness... densifiable without mechanical pressure... metallic tungsten 2nd phase, matching silicon nitride ceramic thermal expansion... 20% content by volume of tungsten induces conductivity... optical stealth, wireless communication, electromagnetic wave absorption/ shielding"

Collection of tiny antennas can amplify and control light polarized in any direction

https://phys.org/news/2025-02-tiny-antennas-amplify-polarized.html "polarization-independent/ highly resonant metasurfaces of nanoantennas replace refractive surfaces of eyeglass, smartphone lens, AR, VR, LiDAR (light detection/ ranging)... overcomes metasurface high sensitivity to light polarization... shrinks size... design/ shape however we like... high quality factor: trap light over narrow resonant frequencies band for long time, generating strong response to external stimuli... smart eyeglasses, programmable lenses. polarizer not required... signal processing, quantum devices"

Chromium sulfide bromide responding to magnetic field switching traps quantum information carriers in one dimension

https://news.umich.edu/magnetic-switch-traps-quantum-information-carriers-in-one-dimension/ "excitons physically encode quantum information trapped in single layers:in: electric charge processea information through interactions, photons (light) transfer information, magnetism (electron spins) store information, phonons (vibrations, sound) modulate/ transduce information to new frequencies... future: embodied excitons in charge separation converted to magnetic excitations embodied in electron spins, enabling quantum information converting between states... quantum sensing/ computing"

Dynamic volumetric displays enabled by tunable upconversion in rare-Earth-doped glasses

https://www.eurekalert.org/news-releases/1074231 "3D images using volumetric pixels (voxels) do not need head-mounted devices/ complex visual tricks... laser-based enable vivid colors, high contrast ratios, now overcome low resolution, ghost voxels, absence of tunable, full-color emission in single material... RE3+-doped monolithic glasses (RE = Ho, Tm, Nd, Yb) tunable full-color emission under near-IR... leverages rare-earth ion optical properties in glass matrices... high optical transmittance, thermal/ chemical stability, low phonon energy, superior mechanical strength"

Leaf vein-inspired photothermal actuator combines rapid movement with impressive load-carrying capacity and stability

https://www.eurekalert.org/news-releases/1074235 "superstructure liquid metal/low expansion polyimide/polydimethylsiloxane actuator,... overcomes trade-off between response speed/ load-carrying capacity... laser etching intricate graphene trenches within LM@PI films, then encapsulated with PDMS producing programmable actuator... created photo-activated robotic dog capable of crawling, jumping, swimming, standing, as well as single-pole triple-throw switches/ high-speed oscillators... wide-ranging applications in robotics and intelligent systems"

Light-powered breakthrough enables faster, more energy-efficient, environmentally sustainable, precision tuning of perovskite quantum dots

https://news.ncsu.edu/2025/02/18/tuning-quantum-dots-with-light/ "without compromising material quality... tune optical properties by tuning bandgap, which determines light color emitted... green-emitting perovskite quantum dots in either chlorine or iodine solution, then run through microfluidic system incorporating light source enabling precise reaction control by ensuring rapid, uniform light exposure across 10µ/ reaction droplet... makes QDs move closer to blue when chlorine present, red when iodine present... bandgap control: controlling energy/ light amount... optoelectronic devices"

Eyepiece consisting of two layers of meta-optics has large aperture and wide field of view

https://www.eurekalert.org/news-releases/1073971 "1st optic both 2.1 cm aperture and corrector plate, 2nd a focusing lens, together has high-quality imaging up to 60° full field of view... improved image quality over wide field of view at design wavelength/ reduced total track length... meta-optics integration into full-scale near-eye AR, VR, night vision... compact form-factor... single-wavelength 633 nm illumination suitable for monochromatic applications... future: applications requiring full color"

Monolayer crystalline and amorphous 2D carbon material is 8 times tougher than graphene, and resists cracking

https://www.eurekalert.org/news-releases/1074114 "in-plane structure of ordered (crystalline) regions embedded inside disordered (amorphous) matrix... enabled by recent advances in nanomaterial synthesis and high-resolution imaging, uncovered new approach to making 2D materials tougher without adding extra layers... faster, more efficient electronics, high-capacity energy storage, advanced sensors, wearables"

Tweaking 3D-printed mechanical metamaterial geometry creates disorder, more than doubles cracking resistance, by distributing stress

https://www.eurekalert.org/news-releases/1073713 "mimics bones, seashell iridescent material, mussels' threads attaching to surfaces... low cost, not changing material... 2.6X tougher... highest performance level where material looked somewhat regular but not exactly symmetrical (no (repeating structure)... extremely precise laser used to cut the disordered patterns... disorder prevents cracks traveling straight... tested using triangles, but applies to many different geometries.... future: combining different material types, adding different geometries at different scales... aerospace"

Extracting molecules from mixtures, accounting for 15% of USA energy use, made faster and more cost-effective

https://www.eurekalert.org/news-releases/1073533  hHalf the cost of bringing a new drug to market is trying to separate molecules, a process which may be done between 10 and 20 times for one substance... rial-and-error separations replaced by quantitative/ predictive molecular methods... overcomes porous separation materials becoming blocked by cellulose, using solvent to remove extra material... pharmaceuticals, energy/ chemical/ food production, environmental science"

HoloTile superimposes multiple holograms eliminating random light interference for efficient and high-resolution 3D printing

https://www.eurekalert.org/news-releases/1073411 "projecting 3D hologram of shape onto spinning resin/ hydrogel vial... utilizes projected light waves' phase/ position, so all pixel inputs contribute to holographic image in all planes, giving more light efficiency/ better spatial resolution in final 3D object... prints complex 3D objects <60 seconds, 25X less optical power... hologram beams can be made self-healing spreading through resin without thrown off course by small particles... standard commercial equipment... biomedical... future: no need to spin vial" Related: Recyclable plastic for the printer https://www.eurekalert.org/news-releases/1073616 New 3D printing method replicates nature's finest fibers https://www.eurekalert.org/news-releases/1073663 Eco-friendly ink expands graphene's potential in 3D printing https://phys.org/news/2025-02-eco-friendly-ink-graphene-potential.html#google_vignette Researchers control metal microstructure for better 3D print...

Silicon chip maps/ catagorizes more than 70,000 synaptic neuronal network connections from about 2,000 rat neurons

https://techxplore.com/news/2025-02-silicon-chip-synaptic-neuronal-network.html#google_vignette "electrophysiological recording small yet telltale synaptic signals using 4,096 microhole electrode array on silicon chip... shows in parallel which neurons connect to which others... microhole electrodes better couple to interiors of neurons than the vertical nanoneedle electrodes/ easier fabrication... >90% of microhole electrodes intracellularly coupled to neurons on top, better quality recording data categorizes each synaptic connection based on characteristics/ strengths... working toward newer design deploying in live brain"

Research uncovers smaller and better performance sweet spot for relaxor nanomaterial

https://news.rice.edu/news/2025/smaller-and-better-rice-research-uncovers-performance-sweet-spot-relaxor-nanomaterial "as thin-film shrinks to dimensions comparable to materials’ internal polarization structures, relaxor ferroelectrics behavior shifts... ceramic lead magnesium niobate-lead titanate excels at converting energy from one form to another, pressing it generates voltage, while applying external voltage makes it change shape... when shrunk, before losing special abilities, material performed better, best phase stability at 25-30 nm... smaller/ better: energy harvesting, low-power computing, sensors, actuators, nanoelectronics"

Active matter can be driven out of equilibrium by internal energy sources, allowing their independent movement

https://www.bristol.ac.uk/news/2025/february-/active-matter-breakthrough.html "Janus colloid µm-sized particles suspended in liquid mixture, activated applying strong electric field... scattered colloid particles merge together forming 3D worm-like structures... predict/ control motion solely based on their lengths... design devices independently moving different parts of themselves, or particle swarms emerging under low-density conditions searching for target.... at higher densities, particles formed sheet-like and maze-like structures... drug delivery, self-healing materials"

Novel composition/ processing of transparent plasma-resistant high-entropy ceramics extends life of semiconductor etching equipment

https://techxplore.com/news/2025-02-transparent-ceramics-life-semiconductor-etching.html "reduces particle contamination... overcomes frequent conventional ceramic component replacement... inorganic dense bodied, high-density solid-state materials sintered, becoming transparent ceramics with 99.9% density, transmitting visible/ IR by controlling porosity... High-entropy ceramics don't generate impurities, have high heat resistance, excellent wear resistance, low thermal conductivity, as well as plasma resistance... low etch rate: fewer contamination particles... advances localization of components" Related: Researchers make progress in high-temperature thermally sensitive ceramics https://phys.org/news/2025-02-high-temperature-thermally-sensitive-ceramics.html

Direct generation of circularly polarized electroluminescence from chiral materials in OLEDs may mitigate energy loss, simplify design

https://www.nature.com/articles/s41467-025-56923-6 "circularly polarized light's rich optical information, angle independence character... prepares 2 pairs efficient circularly polarized thermally activated delayed fluorescence materials with high photoluminescence quantum yields, short delayed fluorescence lifetimes, good luminescence dissymmetry factors, large horizontal dipole ratios, narrow-spectrum emission... 3D displays, information encryption, quantum computing, LEDs, optical communication for spintronics"

Google’s analog-digital quantum simulator may enable next-gen supercomputers to make new physics discoveries/ applications

https://gizmodo.com/googles-hybrid-quantum-simulator-could-open-doors-to-new-physics-2000559215 "made up of 69 superconducting qubits,.. prepared quantum state using digital gates, enabling flexibility in initial state, then switched simulation to analog before system overcome with noise, then reverted simulation to digital, allowing more versatile study of state... discrepancy between simulations and Kibble-Zurek mechanism, it’s new physics... future: run same simulations on Google's Willow quantum computer" Related: Microwave-to-optics transduction: Readout technique for superconducting qubits demonstrated https://phys.org/news/2025-02-microwave-optics-transduction-readout-technique.html

Bimetallic nickel-free ferritic/ high purity austenitic nickel 3D printed; maintains stainless steel strength

https://techxplore.com/news/2025-02-3d-alloy-nickel-stainless-steel.html ">70% of world's nickel supply for stainless steel production... nickel minimized ensuring sustainable, stabilize costs, long-term nickel availability... ferritic: magnetic/ resistant to cracking caused by stress, corrosion... wire-arc directed energy metal layering deposition via welding... microstructure where metals interface show increased hardness/ strength... lower-cost materials/ manufacture, high-performance manufacturing, durable product, sustainable metal manufacturing practices"

Three degree of freedom hybrid entanglement-carrying orbital angular momentum enhances quantum communication capacity/ precision

https://www.eurekalert.org/news-releases/1073753 "prepare hybrid polarization-cat entangled state, then introduce orbital angular momentum (OAM) degree of freedom by inserting q-plate in e cat-encoded CV part, converting Gaussian beam to OAM beam... prepared hybrid entangled states have non-0 logarithmic negativities, confirming successful hybrid entanglement preparation carrying OAM... introduces OAM degree of freedom into the hybrid entanglement and takes a crucial step towards hybrid quantum information processing with multiple degrees of freedom"

Quantum-inspired revolution in microelectronics, storing classical non-volatile computer memory in crystal gaps where atoms should be

https://www.eurekalert.org/news-releases/1073819 "TB of bits within 1 mm cube... radiation dosimeter electron release write/ optical read memory storage... UV laser stimulating rare earth Praseodymium ions (lanthanides) added to Yttrium oxide crystal.which release electrons that are trapped by crystal’s defects... charged gap as 1/ uncharged gap as 0... Within that millimeter cube, we demonstrated there are about at least a billion of these memories – classical memories, traditional memories – based on atoms"

Transparent aluminum oxide: Tiny acid droplets turn metal into glass-like material that is incredibly hard and resistant to scratches

https://phys.org/news/2025-02-transparent-aluminum-tiny-acid-droplets.html "inexpensive, simple... no high-powered lasers, vacuum chambers, large vats of dangerous acids... after applying microdroplets, apply 2V electric current... eco-friendly: less chemical waste/ energy use... electrowetting: electric field changes liquid droplet properties, allowing precise control over the anodization... miniaturized electronics converting metal surfaces into insulating, transparent layers... optical sensors, solar panels, touchscreens, lenses, ultra-durable coatings for vehicles/ buildings/ electronics"

Electrical manipulation of spin filling sequence in bilayer graphene based quantum dots

https://www.eurekalert.org/news-releases/1073603 "controls spin degree of freedom/ electron filling sequence, through trigonal warping effect, applying small perpendicular electric field, where s-shell filled with 4 electrons, 2 spin-up/ 2 spin-down, each from opposite valleys... when electric field increased, s-shell's electron holding capacity expanded to 12, with first 6 having same spin polarization... minivalley degree of freedom could electrically manipulate spin degree of freedom, increasing quantum control/ electron state manipulation... quantum computing, electronics"

High-density, high-voltage, stable and cost-effective rechargeable batteries pair hydrogen gas with lithium metal as the anode

https://www.eurekalert.org/news-releases/1073607 "platinum-coated gas diffusion layer hydrogen cathode... 2825 Wh/kg energy density, 3V, 99.7% round-trip efficiency... also developed anode-free Li-H battery eliminating need for pre-installed lithium metal, instead depositing lithium from lithium salts in electrolyte during charging, retaining advantages of standard Li-H while enabling efficient lithium plating/ stripping with 98.5% Coulombic efficiency... lower-pressure H₂ storage... renewable energy grids, EVs, aerospace... cost-effective and scalable hydrogen-based batteries" Related: Conjugated phthalocyanine framework-based artificial SEI for high-voltage lithium metal battery https://www.eurekalert.org/news-releases/1075172

Dual-domain architecture shows 39.2X higher energy efficiency running artificial neural networks inferencing with floating-point dataflow

https://techxplore.com/news/2025-02-dual-domain-architecture-higher-energy.html "Analog Computing-in-Memory processes/ stores data in single hardware... progress has mostly been in classification tasks (e.g., images), not in handling complex regression (e.g., You Only Look Once) object detection), due to high computational noise/ floating-point data compatibility issues... overcome combining high-precision floating point compatible digital computing/ energy efficiency... prototype memristor-based system attains 2.7X higher average precision than that of pure Analog Computing-in-Memory systems"

Negative refraction achieved propagating light through atomic arrays, without need for artificially manufactured metamaterials

https://www.eurekalert.org/news-releases/1073130 "negative refraction: light in medium bends in opposite direction to what is typically observed in nature,potentially enabling perfect lens capable of focusing/ imaging beyond diffraction limit, or cloaking devices rendering objects invisible... overcomes metamaterial fabrication imperfections/ non-radiative losses... atoms interact collectively enabling negative refraction... trapping atoms in periodic optical lattices providing pristine, clean medium free from fabrication imperfections, without absorption losses"

Gate-controllable two-dimensional transition metal dichalcogenides for spintronic memory

https://phys.org/news/2025-02-gate-dimensional-transition-metal-dichalcogenides.html "smaller, high-speed, energy-efficient with modulate spin transport properties: 80 μW, maintaining high spin polarization ratios up to 0.9... enables precise control over memory operations... >4000% tunneling magnetoresistance ratios, improves spin current densities, reduces power consumption during read/ write... . These findings suggest that TMD-based spintronic memory devices are well-suited for next-generation applications requiring high-speed, energy-efficient memory solutions... AI, IoT"

Flying focus technique steers laser-induced THz generated at a large distance from filaments to the laser in the air

https://phys.org/news/2025-02-technique-laser-thz-air.html "controls focused fs pulse group velocity, determining plasma filament's angular distribution... controls ionization velocity/ resulting THz angle, adjusting laser's ionization front where air molecules stripped of electrons... steer waves at specific angles (even backwards)...  remote THz spectroscopy analyzing materials in detail from afar, reverse secondary radiation direction producing backward THz emission"

Designing molecules that produce color-changing circularly polarized luminescence for 3D displays and security printing

https://www.eurekalert.org/news-releases/1073058 "irradiating with UV causes electric field spiral rotation producing circularly polarized luminescence... grinding them instead induces reversible emission color change (mechanochromic luminescence), but grinding required to induce color change also induces structural changes to crystals producing substantially less efficiency... stacked pyrenes by intermolecular hydrogen bonds promotes excimer emission even in the amorphous states... switchable, solid-state for: 3D displays, biosensing, security printing"

Changing grain orientation of metal batteries by adding thin layer silicon between lithium metal and current collector improves performance

https://pme.uchicago.edu/news/better-texture-better-batteries "10X improved rate capability... collaborations with LG Energy Solution for commercialization... future: lower pressure during testing from 5 to 1 MPa industry standard, study texture of sodium as a readily available alternative to lithium (predict sodium metal prefers to have texture for fast atomic diffusion"

Atomic manipulation induced plainer lattice makes better thermoelectric cooler and power generator

https://www.eurekalert.org/news-releases/1073121 "enhances thermoelectric performance/ mechanical processing properties of n-type  bismuth telluride  based alloys...  lattice plainification/ band engineering, introducing trace Cu atoms effectively regulate intrinsic lattice defects, achieving fine tuning of the conduction band structure, and significantly enhancing carrier mobility μ... promotes band sharpening/ divergence, significantly improved mechanical processing for large-scale production... ~6.4% power generation efficiency at room temperature... precise temperature control"

Quantum imaging breakthrough with spatially entangled photon pairs generated by lithium niobate thin film nonlinear silica metasurfaces

https://www.eurekalert.org/news-releases/1073108 "combines ghost imaging/ all-optical scanning, reconstructing images with exceptional resolution... no bulky nonlinear crystals bearing narrow angular emission, limited field of view, mechanical scanning... subwavelength-scale, optically-tunable photon emission angles by tuning pump beam wavelength... 1D detector array in idler path/ bucket detector in signal path... exceeds quantum ghost imaging setups >4 orders magnitude... free-space quantum communication, object tracking, sensing, quantum LiDAR"

Recyclable, scalable, energy-efficient artificial vision system inspired by the human brain uses honey as an electrolyte

https://techxplore.com/news/2025-02-recyclable-artificial-vision-honey-electrolyte.html "organic, biodegradable recyclable... sees/ 'remembers colors... sensing light, processing information, non-volatile memory storage function simultaneously in-memory, as do brain synapses... better than silicon-based CMOS sensors, which require significant computing/ energy resources... prototype on glass substrate using gold electrodes, electrolyte of organic photosensitive perylene layer,/honey layer... photodetector producing current spikes varying in response to different light wavelengths/ intensities... glass, gold recycled" Related: Synaptic device array integrates sensing, memory, and processing for artificial vision https://techxplore.com/news/2025-02-synaptic-device-array-memory-artificial.html#google_vignette

AI-powered method improves high-speed users' connectivity and reduces 5G and 6G network errors

https://www.eurekalert.org/news-releases/1072801 "mmWave: very high-frequency radio waves transmitting lots of data using Multiple-Input Multiple-Output large groups of antennas working together... ransformer-assisted parametric CSI feedback focuses on key aspects (angles, delays, signal strength) instead of sending all detailed information... transformer AI model analyzes/ predicts short-/ long-term patterns in signal changes, making real-time adjustments even when users moving quickly... >3.5 dB lower errors... high-speed trains, satellites, V2X, maritime networks" Related: Exotic waves with tangible effects https://www.eurekalert.org/news-releases/1073249

Temperature-controlled conductive networks in vanadium dioxide enhance the sensitivity of silicon photodetectors to THz light

https://www.eurekalert.org/news-releases/1072651 "wireless low-power high-speed electronic devices... patterned metal layer over silicon substrate accelerating electron flow... heating vanadium dioxide transforms small areas from insulating to tiny dynamic metallic electrodes... 10sX larger... advanced electronics that overcome the limitations of traditional materials to meet speed and efficiency requirements"

Insect compound eye-inspired low-cost camera captures 9,120 frames per second

https://techxplore.com/news/2025-01-insect-eye-camera-captures.html#google_vignette "parallel frame acquisition from different time intervals determining motion, low-light, captures objects up to 40X dimmer... small, fits on finger, <1 mm thickness... channel-splitting enhances camera's speed, 1,000sX faster... compressed image restoration algorithm eliminates blur caused by frame integration... biomedical, mobile devices, portable camera systems, security surveillance, medical... future: 3D imaging."

Buoyant Air Turbine harnesses high-altitude winds generating up to 2X as much energy as conventional wind turbines of similar size

https://www.wecb.fm/as-tall-as-a-skyscraper-and-8-times-more-powerful-than-a-wind-turbine-this-new-turbine-is-the-key-to-energy-independence/#google_vignette "circular inflatable durable fabric shell... 300 - 600 altitudes, capturing winds 5 - 8X stronger than those of lower heights... autonomously adjusts altitude automatically optimizing wind capture... initial deployment in rural Alaska... 18 cents/ KWh... easy to deploy... remote communities"

Electric nanogate controls translocation of selective single molecules from one or both sides

https://www.eurekalert.org/news-releases/1072380 "single tiny pore formed in silicon nitride membrane positioned in flow cell formed on chip, solutions then introduced on membrane's both sides, applying voltage... precipitates grew closing pore under negative voltage, decreasing ionic current/ precipitates dissolve opening pore under positive voltage, increasing ionic current... can act as rectifier, also as memristor with memory effect in relationship between current/ voltage, also to allow biomolecule detection... neuromorphic computing, sensing, controlled chemical reactions"

Coding for greener internet reduces energy use of some data centers by as much as 30%

https://techxplore.com/news/2025-01-coding-greener-internet-center-energy.html "most data centers use Linux's network traffic processing... 30 lines of code rearrange what is done/ when, for much better CPU cache usage... published as part of Linux kernel release version 6.13, code could save GWh energy worldwide. Almost every single service request that happens on the Internet could be positively affected by this"

Scientists synthesize multilayered 2D polyaniline crystal, achieving unique metallic out-of-plane charge transport and high conductivity

https://www.eurekalert.org/news-releases/1072790 "low-cost, lightweight, flexible alternatives to traditional semiconductors/ metals... efficient charge transport between polymer chains... topology-directed 2D aniline polymerization using anionic surfactant monolayer on water surface... 130–160 μm² domain size, 10s - 100s nm thickness... columnar Ï€ arrays with 3.59 Ã… interlayer spacing, rhombohedral lattices, facilitating strong in-plane conjugation/ interlayer electronic coupling... structural ordering and electronic coupling... electrodes, electromagnetic shielding, sensors" Related: Self-driving lab transforms electronic polymers discovery https://phys.org/news/2025-02-lab-electronic-polymers-discovery.html

High-definition OLED microdisplays with reduced electrical crosstalk could enhance VR and AR experiences

https://techxplore.com/news/2025-02-high-definition-microdisplays-electrical-crosstalk.html "overcomes declining image quality/ color rendition as pixel density increases due to electrical crosstalk... while not compromising energy-efficiency... improved pixel resolution/ efficiency... silicon-integrated small-molecule hole transport layer patterned using microlithography mitigating electrical pixel crosstalk... high-fidelity micro-pattern arrays with up to 10,062 pixels/ inch resolution on 6" wafer... modulates charge balance within emission layers, improving luminance...smart glasses/ phones, wearables"

H-CAP: High-frequency enhanced ultrafast compressed photography enables microscopic movie to appear at a glance

https://www.eurekalert.org/news-releases/1073038 "takes into account high time resolution, high imaging frame rate, large frame number at same time... overcomes high spatial/ time complexity... no high-frequency information blurring caused by traditional ultrafast compression... eliminates black/ white pixel clusters by rearranging traditional random coding structural distribution... obtains high-frequency enhanced random coding suppressing low-frequency noise in Fourier transform domain... ultrafast: laser-matter interaction, light field measurement demagnetization"

Neutron scattering uncovers spiral magnetic structure in layered perovskites

https://phys.org/news/2025-02-neutron-uncovers-spiral-magnetic-layered.html "multiferroic coupled magnetic/ electric ordering at ambient temperatures... spiral magnetic layered perovskites YBaCuFeO5... net electrical polarization, long-range magnetic order, create electric dipoles... can act on magnetic properties using electric field/ act on electric properties using magnetic field... less energy consuming, less volatile, more stable in devices, enables further miniaturization... data storage, data transmission, quantum computers."

Faster, more energy efficient opto-magnetic spin memory/ storage uses one-fifth the previous light intensity

https://www.eurekalert.org/news-releases/1072797   "alloy nanofilms with up to 70% platinum dissolved in cobalt... platinum's relativistic quantum mechanical effect boosts opto-magnetic torque, changing direction of magnets... electron orbital angular momentum generated by circularly polarized light... light-based spin memory/ storage"

Electrical mutual control of non-collinear Mn3Sn antiferromagnet and CoFeB ferromagnet in a programmable spintronic AI device

https://phys.org/news/2025-02-ai-hardware-horizon-electrically-programmable.html "high energy efficiency due to integrated memory/ computing... switches magnetic states efficiently... magnetic spin Hall effect... adjusting current switches CoFeB magnetization in different traces representing multiple states mimicking synaptic weights (analog values) in AI processing... current-programmable neural networks... minimizes environmental impact of AI chips"

Making an invisible electric wire: Transporting electricity through air by ultrasonic waves

https://phys.org/news/2025-02-invisible-electric-wire-electricity.html "guiding spark around obstacles, to hit specific spots, even in non-conductive materials... sparks heat up air, expanding/ lowering its density, hot air then guided by ultrasonic waves (safer than lasers) into regions where sound intensity is higher, next sparks then follow these regions of lighter air because of its lower breakdown voltage... compact, affordable, continuously operable....contactless Braille system, atmospheric sciences, biological procedures, selective circuit powering"

Quantum algorithm distributed across multiple processors for the first time paving the way to large-scale quantum computers

https://www.eurekalert.org/news-releases/1072549 "photonic network interface linking (using optical fiber) small quantum processors forming quantum computer... capable of processing millions of entangled trapped-ion qubits (no limit to number of processors in network)... similar to how traditional supercomputers work... modules can be upgraded/ swapped out without disrupting... calculates in hours what today’s supercomputers take many years... quantum internet, sensors"

AI computer vision camera the size of a grain of salt identifies objects at the speed of light, capturing crisp, clear images

https://phys.org/news/2025-02-compact-camera.html "optical computing chip recognizes objects in images/ video... reduced power consumption... camera lens replaced with engineered optics... flat, lightweight 50 meta-lens layers using microscopic nanostructures manipulating light, also functioning as optical neural network... 200X faster... self-driving vehicles, robotics, medical devices, smartphones"

More reliable quantum network using first-of-its-kind quantum gate

https://phys.org/news/2025-02-kind-quantum-gate.html "operates between 2 photonic degrees of freedom: path, polarization, frequency... combined with hyperentanglement enhances quantum communication error resilience... hyperentanglement manipulated through quantum gate, used in application, improving communication ability via quantum network... future: deploy this new technology on ORNL's quantum network"

Chip-free wireless sensor electronic tags reduce environmental impact caused by single-use RFID technologies

https://techxplore.com/news/2025-01-chip-free-wireless-sensors-environmental.html "identifies objects, measures temperature without microchips... flexible, lightweight, inexpensive coils smaller than those in credit cards, sensing material of PDMS silicon rubber/ carbon fibers... absorb electromagnetic multiplexed signals from wireless hand-held reader. (£100)... carry identifying information, take real-time temperature (20 to 110°C), pH, humidity... warning food risk, also use in health care, smart clothing... multiple tags read at once at different distances... tags manufacture simple, scalable process" Related: Scientists enhance high-resolution distributed temperature sensing using plastic optical fibers https://techxplore.com/news/2025-02-scientists-high-resolution-temperature-plastic.html#google_vignette

Anti-aliasing minimizes noise and enhances light control, significantly enhancing optical performance of metasurface flat optics

https://www.eurekalert.org/news-releases/1072540 "multidimensional sampling overcomes flat optics limitations... flat optics pattern ultra-thin surfaces with nanostructures... metasurfaces use 100's of millions nanostructures precisely sampling/ controlling light phase distribution... sampling converts analog optical signals into discrete data points... overcomes metasurface aliasing issue with multidimensional sampling incorporating 2D metasurface lattice/ light wave properties... relaxes fabrication constraints,... UV metasurfaces, smartphone cameras, AR, VR"

Eco-friendly, sustainable, battery-free self-powered sensor uses motion and pressure to generate electricity and light simultaneously

https://www.eurekalert.org/news-releases/1072538 "triboelectric nanogenerators and mechanoluminescence... overcomes issues of power output stability, insufficient luminous duration... added light-emitting zinc sulfide-copper particles to rubber-like material (polydimethylsiloxane developing single electrode obtaining high efficiency.based on silver nanowires... stable performance even after repeatedly pressed >5,000X, stably generates voltages up to 60V, 395 nA... stable underwater and in dark... rescue signaling/ wearable safety devices, sports activity monitoring"

Pyrochlore magnet shows consistent strength and practically no thermal expansion over temperature range of over 400 Kelvins

https://www.eurekalert.org/news-releases/1072410 "zirconium, niobium, iron, cobalt alloy even better thermal non-expansion properties than that of iron, nickel... only changes  around one ten-thousandth of 1% per Kelvin... certain electrons change state as temperature rises, causing magnetic order to decrease, and contraction, almost exactly canceling expansion... pyrochlore magnet does not have perfect lattice structure repeating exactly same way: some areas contain more cobalt, some less, near-zeroing overall expansion... aviation, aerospace, high-precision electronics"

Clay/europium-based technology integrates light emission and color control promising dual-mode multifunctional displays

https://www.eurekalert.org/news-releases/1072268 "low voltage stimulated materials instantaneously undergo electrochemical reactions producing different colors... smectite clay membranes combine luminescent/ coloration molecules on electrodes instead of electrolyte, making europium(III) complexes providing vibrant luminescence, and heptyl viologen derivatives enabling striking color changes, more efficient/ stable... then applyed smectite, HV2+, Eu(hfa)3(TPPO)2 hybrid films onto indium tin oxide electrodes... more sustainable/ versatile"

Perovskite with copper nanoatalyst and sunlight converts CO2 into hydrocarbons for clean fuel, chemical and plastic production

https://www.eurekalert.org/news-releases/1072103 "produces ethane/,ethylene,  glycerate, lactate, formate... also input water/ glycerol (oxidized using silicon nanowire electrodes)... 200X better (by using glycerol) than earlier systems splitting water and CO2... design of catalyst’s surface area influences which products generated... , making the process more selective... current CO₂-to-hydrocarbon selectivity remains around 10%, but researchers are optimistic about improving catalyst design to increase efficiency"

Scientists achieve multilevel magnetoresistance modulation in high-performance spin valve organic spintronic devices

https://phys.org/news/2025-01-scientists-multilevel-magnetoresistance-modulation-spintronic.html#google_vignette "combines organic molecule benefits with spin modulation, improving material, architecture, mechanism design/ development... 3-terminal, incorporating gate structure merging strain electronics/ organic spintronics, achieving 281%, 10X higher than average magnetoresistance found in polymer systems.... separates write/ read units, preventing signal attenuation/ device failure... >10 stable spin-dependent working states within single device, enhancing storage density"

New process converts carbon dioxide into carbon nanotubes before 3D printing them into high-density carbon nanocomposites

https://www.chemistryworld.com/news/carbon-dioxide-converted-into-carbon-nanotube-based-3d-printer-ink/4020755.article "electrolysis/ thermochemical reactor reduces carbon dioxide into carbon monoxide, channelled into thermochemical reactor, steel wool catalyst converts into carbon nanotubes (38% by weight), used in 3D printer creating strong/ lightweight high-quality thermoset carbon nanocomposites... 90% cost reduction in carbon nanotube production... transport, construction"

China’s 8,080-mile network delivers lightning speed, 0 data packet loss, ultra-low delays

https://interestingengineering.com/innovation/chinas-network-zero-data-loss "speed up AI development, change how data services work... cost-effective, high efficiency, low energy consumption, low latency, unwavering stability (delay jitter <20 ms)... links major cities across 13 provinces... merges optical communication/ deterministic networks... no need for intermediate signal boosters"

Better digital memories with the help of noble gases

https://www.eurekalert.org/news-releases/1072003 "more memory cells in less space by adding the noble gas xenon when manufacturing digital memories... more even material coating even in small cavities... more layers with thinner and more holes lead to more memory cells, but makes it harder to fill the holes, overcome by getting material into holes/ coating evenly by adding heavy noble gas xenon during coating at high enough temperatures”

Ionic Wind Technologies' scalable, energy-efficient airflow booster for cooling data centers and high-performance electronics

https://techxplore.com/news/2025-01-energy-efficient-cooling-ionic.html "electrostatic field converts electrical current directly/ energy-efficiently (up to 60% savings) into airflow... overcomes low airflow by amplifying/ accelerating using needles with tungsten tips (2X airflow of wire) electrodes combined with Coandă effect fluidic flow-optimized housing shape... no motor, rotor, fan blade... uses local pressure differences multiplying air flow volume... drying processes without heating elements, air purification" Related: Thermal interface material slashes AI data center cooling cost and GPU/CPU power use https://techxplore.com/news/2025-02-thermal-interface-material-slashes-ai.html New method significantly reduces AI energy consumption https://www.eurekalert.org/news-releases/1076016

Hydrogen from polyethylene terephthalate (PET) plastic waste

https://jasondeegan.com/no-one-believed-it-but-the-u-s-is-set-to-profit-from-a-discovery-that-transforms-plastic-waste-into-hydrogen/ "specialized catalysts initiate PET decomposition into aromatic compound xylene p, then into high quality green hydrogen and a fundamental chemical building block, through rotary detonation combustion, without releasing harmful emissions... integrates organic liquid hydrogen carriers storing/ transporting hydrogen produced... eco-friendly, cost-effective, scalable" Related:  Protonera's breakthrough technology transforms plastic into hydrogen fuel https://seedlegals.com/resources/founder-interview-protonera/