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Showing posts from January, 2023

Creating 'ghostly mirrors' for high-power lasers

https://phys.org/news/2023-01-ghostly-mirrors-high-power-lasers.html "small footprint, ultra-high-power, ultra-short pulse laser... from hundreds of petawatts to exawatts... reduce size of ultra-high power lasers, which currently occupy buildings the size of aircraft hangars, to single room, table top, for reasonable price... mirror exists only fleetingly, for a few picoseconds... Plasma can withstand intensities up to 1018 watts per square cm, exceeding threshold for damage of conventional optics by four or five orders of magnitude, shrinking meter-sized optics to mm or cm" Related:  https://todays-tech-news-notable-or-not.blogspot.com/2021/08/truthers-and-singularity.html https://phys.org/news/2023-02-extreme-ultraviolet-laser-pulses-efficiently.html

New method to control electron spin paves the way for efficient quantum computers

https://techxplore.com/news/2023-01-method-electron-paves-efficient-quantum.html   "controlling electron spin in silicon quantum dots... spin-valley coupling," which occurs when electrons in silicon quantum dots transition between different spin and valley states... apply voltage pulse to harness spin-valley coupling effect and manipulate spin and valley states, controlling electron spin... without the need of oscillating magnetic fields, which is a limitation of ESR," Nichol says. "This allows us a new pathway for using silicon quantum dots to manipulate information in quantum computers" Related: Graphene quantum dots show promise as novel magnetic field sensors https://phys.org/news/2023-03-graphene-quantum-dots-magnetic-field.html Visualization of electron dynamics on liquid helium for the first time https://phys.org/news/2023-03-visualization-electron-dynamics-liquid-helium.html Researchers find evidence of long-lived valley states in bilayer graphene quant

New semiconducting borophene paves the way for the lightest high-performance transistor

https://phys.org/news/2023-01-semiconducting-borophene-paves-lightest-high-performance.html "hyper-coordinated 2D network of boron atoms named clustered-P1 borophene showing bulk silicon-like band gap, yet lower and symmetric effective masses along transport direction... remarkable thermodynamic, structural, and dynamic stability... transistor of 3-nm channel length deliver 104 ON-to-OFF current ratio... balanced-mode operation of n- and p-type MOSFETs makes it suitable for CMOS performance... clustered-P1 borophene MOSFET possibly lightest high-performance transistor" Related: Scientists reveal 'magic boron clusters' on monolayer borophene https://phys.org/news/2023-03-scientists-reveal-magic-boron-clusters.html Molybdenene—the 'metallic' relative of graphene https://phys.org/news/2023-09-molybdenenethe-metallic-graphene.html Move over carbon, the nanotube family just got bigger https://phys.org/news/2023-10-carbon-nanotube-family-bigger.html

A method to change the mechanical and transport properties of conductive polymers

https://phys.org/news/2023-01-method-mechanical-properties-polymers.html "nstead of changing primary structures of conductive polymers, form well-organized 3D architectures on the materials... controlled thermal process... increase stability, transport efficiency, and durability of lithium-ion batteries, fuel cells, biological sensors, displays and photovoltaics... exceptional cycling performance of full cells with high-loading micron-size SiOx-based anodes, delivering areal capacities of more than 3.0 mAh cm−2 over 300 cycles and average Coulombic efficiency of >99.95%" Related: Electric vehicle batteries could get big boost with new polymer coating https://techxplore.com/news/2023-03-electric-vehicle-batteries-big-boost.html Simple, environmentally friendly coating can improve battery performance https://techxplore.com/news/2023-04-simple-environmentally-friendly-coating-battery.html A scalable method to prelithiate anodes for lithium-ion batteries https://techxplore.com

Overcoming barrier to energy-dense, fast-charging, non-flammable lithium metal batteries that last a long time

https://techxplore.com/news/2023-01-scientists-illuminate-barrier-next-generation-battery.html "short circuiting and failure caused by mechanical stress creating and expanding cracks in ceramic electrolyte... Solutions: Use same mechanical forces to toughen material during manufacturing, much like a blacksmith anneals a blade during production... also, coat the electrolyte surface to prevent cracks or repair them if they emerge" Related: By growing uniform lithium crystals, engineers progress toward fast-charging lithium-metal batteries https://techxplore.com/news/2023-02-uniform-lithium-crystals-fast-charging-lithium-metal.html Group develops framework for high-energy-density, long life-cycle rechargeable lithium metal batteries https://techxplore.com/news/2023-03-group-framework-high-energy-density-life-cycle-rechargeable.html Bilayer PET/PVDF substrate-reinforced solid polymer electrolyte improves solid-state lithium metal battery performance https://techxplore.com/news/20

Researchers develop a novel reconfigurable device that can bridge the gap between processor and memory

https://techxplore.com/news/2023-01-reconfigurable-device-bridge-gap-processor.html "material (M) state-based shift register... amorphous state, fully crystalline state, partially crystallized state and primed state of phase-change material operate device...  as memory, can be switched from disordered glass state to crystalline state 1.9 ns pulses...  resetting energy 2 pJ... shift register can be switched between serial-in–serial-out mode to serial-in–parallel-out mode, with single cell, and exhibit many resistance levels... could be used to design a wide range of high-performance electronic systems"

Researchers find ways to improve the storage time of quantum information in a spin rich material

https://phys.org/news/2023-01-ways-storage-quantum-rich-material.html "improves quantum information storage beyond hundred microseconds... semiconductor materials that have the same lattice parameter behave in unison, making it possible to filter out nuclear noise and achieve near 2X improved storage time... can switch off interaction with nuclei and refocus electron spin over and over again to keep its quantum state alive... demonstrated hundreds of microseconds and much longer coherence times are within reach... all-photonic quantum computing" Related: Scientists boost quantum signals while reducing noise https://phys.org/news/2023-02-scientists-boost-quantum-noise.html

First battery cell without current collectors or metal terminals uses graphene and carbon instead

https://www.globenewswire.com/en/news-release/2023/02/01/2599460/0/en/Graphenano-and-the-University-of-Valencia-revolutionise-safety-and-efficiency-in-the-battery-sector-by-developing-the-first-cell-made-without-metals.html "avoids copper, aluminium or steel to evacuate electrical current, and also tabs (current terminals) made of nickel or other metals, that conventional batteries use... reduces weight and volume, increases energy density between 30% and 60%, and eliminates risk of explosion or fire... without need to replace current cell assembly machinery... can be used with lithium or sodium, opening new field in silicon batteries, supercapacitors, fuel cells and hydrogen electrolyzers" Related: Group14 Closes an Additional $214M to Complete $614M Series C Funding Round https://group14.technology/en/news/group14-closes-214m-from-microsoft-to-complete-614m-series-c-funding-round Sodium-Ion Batteries: From Research to Commercialization, Reports IDTechEx https://www.finanzna

Geothermal 'battery' repurposes abandoned oil and gas well in Illinois, researchers report

https://news.illinois.edu/view/6367/626315322 "already has most of the needed infrastructure in place... sponge-like rock units with open pore space and minerals with optimum thermal conductivity sandwiched between insulating layers retaining fluids hot enough to generate electricity... injected water heated to 50°C... 82% thermal storage efficiency... average overall net cost of electricity generation of $0.138 per kWh... economically viable and profitable" Related: Fervo Energy’s Breakthrough Geothermal Technology Has Produced 3.5 MW Of Clean Energy https://sundries.com.ua/en/fervo-energy-s-breakthrough-geothermal-technology-has-produced-3-5-mw-of-clean-energy/ Breakthrough announced on geothermal cooling project in Abu Dhabi, UAE https://www.thinkgeoenergy.com/breakthrough-announced-on-geothermal-cooling-project-in-abu-dhabi-uae/ Tech breakthrough could boost states' use of geothermal power https://techxplore.com/news/2023-08-tech-breakthrough-boost-states-geothermal.h

GHz burst mode femtosecond laser pulses can create unique two-dimensional periodic surface nanostructures

https://phys.org/news/2023-01-ghz-mode-femtosecond-laser-pulses.html "on silicon substrates... new paths to femtosecond laser processing for other than ablation, including microbonding, crystallization, polishing, two-photon polymerization, and internal optical waveguide writing... GHz burst mode interacts with excited material in relaxation... induce not only efficient and particular optical absorption by transiently changing in its dielectric constant but also the electromagnetic mechanical interactions under high-pressure and high-temperature conditions" Related: Two-beam ultrafast laser scribing of ultrafine graphene patterns https://phys.org/news/2023-02-two-beam-ultrafast-laser-scribing-ultrafine.html Hot electron electrochemistry with ultrafast laser pulses https://phys.org/news/2023-04-hot-electron-electrochemistry-ultrafast-laser.html Intense lasers magnetize solids within attoseconds https://phys.org/news/2023-04-intense-lasers-magnetize-solids-attoseconds.html Lase

Tailoring thickness of conducting materials to enhance their photonic applications

https://phys.org/news/2023-01-tailoring-thickness-materials-photonic-applications.html "plasmonic titanium nitride and aluminum-doped zinc oxide... can control the materials' optical properties, most notably epsilon near zero behaviors... lowest reported optical losses, providing novel applications for telecommunications and furthers study of optical nonlinearities... controlling the ENZ point, the wavelength at which a material is neither dielectric nor metallic... thickness association of optical properties easy to manipulate, enabling growth of films with different ENZ properties"

A continuum robot inspired by elephant trunks

https://techxplore.com/news/2023-01-continuum-robot-elephant-trunks.html "pre-programmable stiffness distribution... various deformation patterns and ability to move through pipelines with varying curvatures... class-3 tensegrity structure, elastic elements evenly distributed... program local stiffness characteristics by replacing elastic elements with others that have different stiffness magnitudes... prototype robot of 12 elastic modules... simultaneously support different functions through the installation of diverse end effectors, such as grippers and sensors" Related: A smart elastomer that can self-tune its stiffness and conductivity https://phys.org/news/2023-01-smart-elastomer-self-tune-stiffness.html Introducing the trimmed helicoid, a soft robot arm that's based on an elephant's trunk https://techxplore.com/news/2023-10-trimmed-helicoid-soft-robot-arm.html

Ultrafast control of spins in a microscope

https://phys.org/news/2023-01-ultrafast-microscope.html "visualize and control the rotation of handful of spins arranged in vortex-like texture, a kind of spin "nano-whirlpool" called a skyrmion... arranging laser pulses apart just right to control rotation of spins in Cu2OSeO3... can switch their orientation by changing delay time between successive driving pulses and adjusting laser polarization... transmission electron microscope to visualize spin changes.. can advance spintronics, including new types of computer memory, logic gates, and high-precision sensors" Related: Researchers develop process to better see objects in the nanoscale realm https://phys.org/news/2023-07-nanoscale-realm.html

Development of the first chip-sized titanium-doped sapphire laser

https://phys.org/news/2023-01-chip-sized-titanium-doped-sapphire-laser.html "provides the widest gain spectrum yet seen on a chip... key is in laser's low threshold of about 6.5 mW, as distinguished from the >100 mW of conventional ones... atomic clocks, portable sensors, visible light communication devices, and even quantum computing chips... also compatible with the family of gallium nitride optoelectronics, which are widely used in blue LEDs and lasers" Related: High-performance chip-scale lasers have arrived https://www.laserfocusworld.com/lasers-sources/article/14289450/highperformance-chipscale-lasers-have-arrived Atomic-scale spin-optical laser: New horizon for optoelectronic devices https://phys.org/news/2023-09-atomic-scale-spin-optical-laser-horizon-optoelectronic.html

New electrode design for lithium-ion batteries that improves performance

https://techxplore.com/news/2023-01-electrode-lithium-ion-batteries.html "anode structure enables uniform reaction stability, improved lifespan, high energy density even if the electrode is thick... Normally, the thicker the electrode the lower the energy density and uniformity, making it difficult to maintain performance in a high-power environment... bi-layered anode designed with grooves allowing small materials with improved ion conductivity and electrical conductivity to be placed between high-capacity materials" Related: Li-Metal Corp. and Mustang Vacuum Systems Inc. announce partnership on battery anode manufacturing https://www.canadianmanufacturing.com/manufacturing/li-metal-corp-and-mustang-vacuum-systems-inc-announce-partnership-on-battery-anode-manufacturing-290569/ Braided core structure boosts energy density in fiber lithium-ion batteries https://techxplore.com/news/2023-05-braided-core-boosts-energy-density.html Extending the life of a lithium metal anode using

Micelles—the meeting place boosting reactions and interactions

https://phys.org/news/2023-01-micellesthe-boosting-reactions-interactions.html "control chemical reactions by charge neutralization and increase in effective concentrations of reactants... using compounds with a large surface charge density speed up reactions up to 5-million fold... reaction rate enhancement by 'counter-charged' species... tuning the magnitude and spatial distribution of  catalyst's charge... positively charged surfactants... detect specific ions in  diluted solutions, interactions between particular molecules, and chemical reaction control on tiny scale"

Quantum physicists determine how to control two quantum light sources rather than one

https://phys.org/news/2023-01-quantum-physicists-sources.html "colossal breakthrough enables quantum mechanical entanglement... also revealed key to scaling... using 20-30 entangled quantum light sources, potential to build universal error-corrected quantum computer, the holy grail... has made it necessary for researchers to develop extremely quiet nanochips and have precise control over each light source"

Scalable method to manufacture thin film transistors achieves ultra-clean interface

https://techxplore.com/news/2023-01-scalable-method-thin-transistors-ultra-clean.html "Switching efficiently between on and off states enables lowest possible voltage, important for TFT integration with CMOS used in vast majority of integrated circuits... clean interface means electrons flow in channel to turn pixel on or off without getting trapped... developed atomic layer deposition technology for zinc tin oxide, integrating for two different key parts of the transistor gate capacitor and semiconductor channel... depositing two layers back-to-back within same tool, without breaking vacuum" Related: Scientists discover easy way to make atomically-thin metal layers for new technology https://phys.org/news/2023-03-scientists-easy-atomically-thin-metal-layers.html Visualizing electron flow motivates new devices inspired by airplane wings https://news.ucr.edu/articles/2023/09/19/electrons-take-flight-nanoscale

Novel method helps recover obscured images

https://phys.org/news/2023-01-method-recover-obscured-images.html "light-scattering material include clouds and body tissue... calibration-free, reconstruction-free, real-time imaging of static and moving objects with their actual orientation information... only requires simple or low-cost devices, without post-computational reconstruction... passed light from small standardized test object through thin diffusing material. By moving camera in a direction away from diffuser, built 3D image taking slices through the speckles" Related: Obtaining color images from the shadow of a sample https://phys.org/news/2023-01-images-shadow-sample.html AI algorithm puts the color back in black and white films https://techxplore.com/news/2023-03-ai-algorithm-black-white.html

Researchers propose combining classical and quantum optics for super-resolution imaging

https://phys.org/news/2023-01-combining-classical-quantum-optics-super-resolution.html "super–resolution microscopy resolves smaller than half wavelength of light... laser pulses excite photons, which when counted one by one with detectors, enables a set of quantum and classical images emerge... algorithm produces images that resolve details of small structures, like cells, over large regions... illuminate a large region of many cells, at high resolution, high speed, and across a high volume" Related: New methods to improve super-resolution imaging techniques give a sharper view inside cells https://phys.org/news/2023-01-methods-super-resolution-imaging-techniques-sharper.html Researchers define protocol for high-resolution imaging of living cells using atomic force microscopy https://phys.org/news/2023-09-protocol-high-resolution-imaging-cells-atomic.html

Transistors repurposed as microchip 'clock' address supply chain weakness

https://phys.org/news/2023-01-transistors-repurposed-microchip-clock-chain.html "set of FinFETs (all high-performance electronics use FinFETs) producing frequency of 8-12 GHz, which exceeds typical native clock rates of microprocessors, repurposing data processing transistors into timing device... used to be made separately and often offsite, and later bundled... now, making the whole clock inside processor hardens device against clock-glitching attacks... also enables acoustic fingerprinting of packaged chip for tamper detection"

Spin transport measured through molecular films now long enough to develop spintronic devices

https://phys.org/news/2023-01-molecular-spintronic-devices.html "room temperature spin transport in thin film alpha-naphthyl diamine derivative (αNPD) molecules, a well-known material in OLEDs... fabricated photoconductive (enables spin transport control using visible light) thin molecular film of αNPD with spin diffusion length 62nm—a long distance for molecular materials but which is needed for practical applications... fabricated through thermal evaporation in vacuum... faster, smaller, super energy-efficient devices with little risk of overheating"

Recyclable mobile phone batteries are a step closer with rust-busting invention

https://phys.org/news/2023-01-recyclable-mobile-batteries-closer-rust-busting.html "MXene, a class of nanomaterial with high electrical conductivity.like graphene, but highly tailorable unlike graphene... MXene rusts easily but high-frequency sound waves for only a minute removes rust restoring close to original state, and revitalizing MXene batteries every few years extends lifetime up to 3X... alternative to less-recyclable lithium... energy storage, sensors, wireless transmission and environmental remediation" Related: Scientists just made a huge breakthrough in lithium-ion battery recycling-- and it could transform our power grid forever https://www.thecooldown.com/green-tech/battery-recycling-lithium-ion/ Laser treatment found to boost battery performance https://phys.org/news/2023-07-laser-treatment-boost-battery.html Efficient and mild: recycling of used lithium-ion batteries https://onlinelibrary.wiley.com/page/journal/15213773/homepage/press/202339press.html Prospect

Device transmits radio waves with almost no power—without violating the laws of physics

https://techxplore.com/news/2023-01-device-transmits-radio-powerwithout-violating.html "wirelessly transmit information simply by opening and closing a switch... random thermal noise, present in all electrically conductive materials because of heat-driven motion of electrons, takes place of power signal driving antenna emission... receiver doesn't have constraints on energy use and consumes substantial power, up to 2 watts... sensors for smart agriculture, electronics implanted in body that never need battery changes, better contactless credit cards and new ways for satellites communication"

An enhanced cooling method for the quantum world

https://phys.org/news/2023-01-cooling-method-quantum-world.html "simple method increases cooling efficiency of even massive objects by order of magnitude... couple vibrating beam to superconducting circuit via magnetic field... attached magnet to beam... When magnet moves, changes flux of superconducting quantum interference device (SQUID)... resonant frequency changes depending on flux, measured using microwave signals... micromechanical oscillator cooled near absolute zweo... change in resonant frequency as function of microwave power is not linear" Related: New cooling technology developed for quantum computing circuits https://phys.org/news/2023-06-cooling-technology-quantum-circuits.html VEIR Secures $24.9M in Series A-2 Funding for Revolutionizing Global Energy Transmission https://www.ustechtimes.com/veir-secures-24-9m-in-series-a-2-funding-for-revolutionizing-global-energy-transmission/ A quantum leap in mechanical oscillator technology https://phys.org/news/2023-08-q

Doubling the capacity of iron oxide-type cathodes for cost-effective Li-ion batteries

https://techxplore.com/news/2023-01-capacity-iron-oxide-type-cathodes-cost-effective.html "cost-effective, safe... utilizing both the iron and oxygen redox is difficult to achieve... mechanochemical alloying approach to bring Li5FeO4 to a metastable phase. The fabricated metastable Li5FeO4 exhibited iron and oxygen redox... 2X capacity of LiFePO4... will lead to cost-effective, high-capacity Li-ion batteries based on abundant materials" Related: An approach to stall oxygen evolution in high-voltage cathodes https://techxplore.com/news/2023-02-approach-stall-oxygen-evolution-high-voltage.html Big battery powering large-scale energy storage solutions https://www.qut.edu.au/about/faculty-of-science/school-of-biology-and-environmental-science/news-and-events?id=185269 Novel battery storage with solar power could be low-cost clean energy solution https://techxplore.com/news/2023-07-battery-storage-solar-power-low-cost.html A Breakthrough Alternative to Cobalt in Batteries: Longer

Understanding of point defect mechanism boosts photovoltaic performance of antimony selenosulfide

https://phys.org/news/2023-01-defect-mechanism-boosts-photovoltaic-antimony.html "initial hydrothermal deposition causes point defects with high formation energy... result of random deposition of ions driven in hydrothermal condition... Post-annealing and thin-film crystallization led to loss of sulfur and selenium anions and formation vacancy defect... antimony ions transfer and fill anion vacancies, eventually forming SbS(e) inversion defect... provides guidance for designing methods to produce films and inhibiting the formation of deep-level point defects"

Researchers reveal the role of 'lithium creep' in batteries

https://techxplore.com/news/2023-01-reveal-role-lithium-batteries.html "Li metal is soft and deforms easily under pressure, which degrades separator within pouch cell... separator helps prevent short circuit which can result in battery failure and fire...  current commercial separators are not mechanically compatible with the next generation of high-energy density batteries, and novel battery separators should be developed to meet the new mechanical requirements"

Sustainable, ultra-strong and ductile steel through advanced processing

https://techxplore.com/news/2023-01-sustainable-ultra-strong-ductile-steel-advanced.html "sustainability, strength and ductility vs. costs and industrial applicability... compositionally lean medium-manganese steel... tensile strength 2.2 GPa at elongation of 20%... 2X energy absorption capacity of current steels... forging steps, cryogenic treatment and tempering strengthen material and make more ductile... transforms most of  austenite into laminated martensite that is 2X topologically aligned, and stabilizes remaining austenite... compatible with existing industry processes" Related: A Breakthrough in Steel Technology Could Be An Industry Game-Changer https://www.propmodo.com/a-breakthrough-in-steel-technology-could-be-an-industry-game-changer/ Greenhouse gas balance for stainless steel production further improved https://techxplore.com/news/2023-02-greenhouse-gas-stainless-steel-production.html A counterintuitive way to make stronger alloys https://phys.org/news/2023-02-c

A robot able to 'smell' using a biological sensor

https://techxplore.com/news/2023-01-robot-biological-sensor.html "sensor sends electrical signals as response to odor, which robot detects and interprets... machine learning to create library of smells... sensitivity 10,000X higher... ... prototype able to characterize 8 odors such as geranium, lemon and marzipan, and then later, to various types of Scotch whiskey.... principle we have demonstrated can be used and applied to other senses, such as sight and touch, and eventually identify explosives, drugs, diseases" Related: Sensing odor molecules on a graphene surface layered with self-assembled peptides https://phys.org/news/2023-01-odor-molecules-graphene-surface-layered.html

New method for designing tiny 3D materials could make fuel cells more efficient

  https://phys.org/news/2023-01-method-tiny-3d-materials-fuel.html "chemical synthesis to grow hexagonal crystal–structured nickel branches on cubic crystal–structured cores to create 3D 10 to 20nm hierarchical structures... high surface area, high conductivity due to direct connection of metallic core and branches... surfaces can be chemically modified making it an ideal electrocatalyst support speeding up rate of oxygen evolution reaction, a crucial process in energy conversion... higher surface area means greater efficiency converting hydrogen into electricity" Related: Probing where protons go to develop better fuel cells https://techxplore.com/news/2023-03-probing-protons-fuel-cells.html Enhancing fuel cell lifespan via catalyst selection https://techxplore.com/news/2023-05-fuel-cell-lifespan-catalyst.html Novel mechanism for oxygen evolution reaction on dual-atom catalysts increases reaction activity https://phys.org/news/2023-08-mechanism-oxygen-evolution-reaction-dual

New optical method to verify topological phases in magnetic materials

https://phys.org/news/2023-01-optical-method-topological-phases-magnetic.html "topological magnon currents potentially reduce energy consumption future devices 1,000X... properties of the scattered light are indicators of topological phases in these magnetic materials... topological magnon phase channels carry current of magnons along edges of sample... easy to deploy and can be extended to other quasiparticles as well as to other types of systems consisting of phonons, excitons or photons... hopeful can be utilized to carry information in future spintronics devices" Related: Unlocking the magnetic superpowers of topological magnons https://phys.org/news/2024-01-magnetic-superpowers-topological-magnons.html

Antenna 'waterbomb' based on paper-folding art of origami exhibits reconfigurable and adaptable radar imaging surface

https://techxplore.com/news/2023-01-antennas-microchips-electronics-blur-line.html "shape-shifting array designed like a folded paper box... offset checkerboard pattern... folding and unfolding produces curves, saddles and spheres... wider resolution... ability to capture complex three-dimensional scenes... manipulate electromagnetic waves... advanced algorithms... process information from wide range of electromagnetic fields... improve sensing technology for autonomous vehicles, robots and cyberphysical systems... light and low-cost... folding and tuning spacecraft and solar panels" Related: HORIZON: The Revolutionary Solar Folding Roof for Industrial and Traffic Areas https://medium.com/@jclos2679/horizon-the-revolutionary-solar-folding-roof-for-industrial-and-traffic-areas-531261ece8b8

New 'chain mail' material of interlocking molecules is tough, flexible and easy to make

https://phys.org/news/2023-01-chain-mail-material-interlocking-molecules.html "infinite catenane synthesized in single chemical step... can be produced with an unlimited number of linked units in 3D... individual units interlock mechanically and not connected by chemical bonds can be flexed without breaking... don't fracture... robotics, aerospace and armored suits... made inexpensive MOFs by synthesizing hybrid molecules—metal clusters connected to an organic ligand—and mix them in a solution so that they link up to form a rigid and highly porous 3D network" Related: An 'ecosystem' of tools to boost machine learning-based design of metal–organic frameworks https://phys.org/news/2023-03-ecosystem-tools-boost-machine-learning-based.html Metal-organic frameworks (MOFs) for electrocatalysis: From performance enhancement to future development outlook https://phys.org/news/2023-04-metal-organic-frameworks-mofs-electrocatalysis-future.html Scientists discover new struct

Approaching the terahertz regime: Room temperature quantum magnets switch states trillions of times per second

https://phys.org/news/2023-01-approaching-terahertz-regime-room-temperature.html "MRAM, based on quantum magnetic materials, offer 1,000X memory device performance, but difficult to read from... antiferromagnets without magnetization can read at very high speeds... grow crystals in a vacuum, in incredibly fine layers using two processes called molecular beam epitaxy and magnetron sputtering... exploit quantum entanglement... useful or even essential to build a bridge between the current paradigm of electronic computing and the emerging field of quantum computers" Related: A new material could enable more efficient magnet-based computer memory https://news.stanford.edu/2023/05/05/new-material-opens-door-energy-efficient-computing/

Exceptional properties of Lithium Niobate (LN) harnessed by photonic chips to benefit farming, space navigation

https://techxplore.com/news/2023-01-advances-material-vogue.html "LN can generate and manipulate electro-magnetic (EM) waves across full spectrum of light... LN thin films on semiconductor wafers... Photonic circuits printed into LN layer... Moon rover detect IR signals where there is no GPS... Gas emitted by ripe fruit absorbed by light in mid-IR... drone in orchard transmit light to another which would sense degree to which the light is absorbed and when fruit is ready for harvesting... smaller, easily deployed"

Two technical breakthroughs make high-quality 2D materials possible

https://techxplore.com/news/2023-01-technical-breakthroughs-high-quality-2d-materials.html "devices faster and use less power.... securing single crystallinity at wafer-scale; preventing irregular thickness during growth at wafer-scale; and vertical heterostructures at wafer-scale... facilitated kinetic control enables growth of self-defined seeding for a shorter growing time... demonstrating single-domain heterojunction TMDs at the wafer scale, or a large scale, by layer-by-layer growth... producing at large scale... strong foundation for 2D materials to fit into industrial settings"

Mixing varieties of cotton to produce non-flammable fabrics

https://phys.org/news/2023-01-varieties-cotton-non-flammable-fabrics.html "some brown varieties of cotton have flame-retardant qualities... USDA has been breeding and interbreeding cotton for many years, hoping to find new varieties with better traits... four of the five samples not only withstood the application of a flame, but extinguished it. The researchers also tested the fabrics they made to see if they had lost any of their desirable characteristics such as resistance to burning even after being washed and worn many times" Related: Cocoa pods—a source of chocolate, and potentially, flame retardants https://phys.org/news/2023-10-cocoa-podsa-source-chocolate-potentially.html

Researchers develop organic, air-stable, highly conducting neutral molecular crystal with unique electronic properties

https://phys.org/news/2023-01-air-stable-highly-neutral-molecular-crystal.html "molecule with an incomplete oxidation state... radical conductor... connected two tetrathiafulvalene (TTF)+0.5-type partially oxidized Ï€-skeletons through a negatively charged boron (B) ion... facilitates intra- and intermolecular electronic interactions, the key to achieving incomplete oxidation states... 3D charge-ordered dimer-Mott insulating state at low temperatures... molecules with both positively and negatively charged groups (zwitterions) could potentially revolutionize superconducting technology"

Newly developed polysulfates could find wide use in high-performance electronics components

https://phys.org/news/2023-01-newly-polysulfates-wide-high-performance-electronics.html "thin film, flexible, polymer capacitors store and discharge high density of electrical energy while tolerating heat and electric fields... capacitors made from the new polysulfates, when enhanced with a thin film of aluminum oxide, could discharge a high density of energy, while withstanding electric fields (more than 700 million volts per meter) and temperatures (150 degrees C) that would destroy most in current use... could see wide application, including in electric vehicle power systems"

A novel method of storing data using the dielectric constant rather than electrical resistivity

https://phys.org/news/2023-01-method-dielectric-constant-electrical-resistivity.html "cubic perovskite substrate BaZrO3, boosts square-tensile-strain to BaTiO3 and promotes four-variants in-plane spontaneous polarization with oxygen vacancy creation... new platform for artificial design to a conceptual material system via heteroepitaxy inevitably combined with strain engineering. In addition, the switchable dielectric states provide evidence that the dielectric constant, rather than the electrical resistivity, can be considered a low-energy-consumption memory information"

Noon Energy: Cheap carbon based 100+ hour storage, 3X energy density of lithium-ion, near lithium-ion levels of round-trip efficiency

https://www.canarymedia.com/articles/long-duration-energy-storage/noon-energy-raises-28m-for-a-whole-new-kind-of-long-duration-storage "scaled up lab prototype 50X suggesting will work at grid power plant scale, which helped them raise $28 million series A financing... stores energy by using electricity to split CO2 into solid carbon and oxygen gas; to discharge, it reverses the operation, oxidizing the powdery solid carbon... could one day power clean marine shipping or long-distance trucking... Early markets could include islands as well as remote microgrids" Related: Breakthrough Technology for Renewable Industrial Heat and Long-Duration Energy Storage Announces Fundraise and Upcoming Pilot https://cache-energy.com/breakthrough-technology-for-renewable-industrial-heat-and-long-duration-energy-storage-announces-fundraise-and-upcoming-pilot-2/ Solar-plus-storage outperforms diesel in military survivability analysis https://pv-magazine-usa.com/2023/11/08/solar-plus-storage-ou

Ten-minute scan enables detection and cure of the most common cause of high blood pressure

https://medicalxpress.com/news/2023-01-ten-minute-scan-enables-common-high.html "new type CT scan light up tiny nodules in hormone gland and cure high blood pressure by their removal...  nodules discovered in 1 in 20 people with high blood pressure... patients come off all blood pressure medicines after treatment... in two thirds of patients with elevated aldosterone secretion, hormone originated from benign nodule in just one of the adrenal glands, can be safely removed... scan uses short-acting dose of metomidate, radioactive dye that sticks only to aldosterone-producing nodule"

Chance discovery could extend battery life by replacing tape that causes self‑discharge

https://techxplore.com/news/2023-01-chance-discovery-battery-life-tape.html " tape, like Scotch tape, holds electrodes together... PET in tape decomposes and creates the molecule which shuttles between electrodes all the time causing self-discharge... replacing the PET tape with a more stable material that won't degrade can definitely help improve battery cells"

Lab develops new method for on-chip generation of single photon

https://phys.org/news/2023-01-lab-method-on-chip-generation-photon.html "producing steady, fast stream single photons, enabling photonic-based for quantum computing and networking... at room temperature in way that lends itself to mass-production of CMOS... using defects in certain 2D semiconductor materials, removing a bit of material to create defect... shine light (generated by a laser) onto right kind of defect, emits single photons one every three to five nanoseconds... defect on the 2D material must be placed in the waveguides with extreme precision" Related: New detector could enable high-speed quantum communication https://phys.org/news/2023-01-detector-enable-high-speed-quantum-communication.html Researchers develop ultraefficient white light laser on a chip https://phys.org/news/2023-03-ultraefficient-white-laser-chip.html 2D optical waveguides: Scientists invent smallest known way to guide light https://phys.org/news/2023-08-2d-optical-waveguides-scientists-smalles

Blocking radio waves and electromagnetic interference with the flip of a switch

https://phys.org/news/2023-01-blocking-radio-electromagnetic-flip.html "thin film device, fabricated by spray coating... 2D MXene materials, when combined with electrolyte solution, can be turned into potent active shield against electromagnetic waves... prevents emitting electromagnetic waves as well as being penetrated by other electronics' emitted... could adjust performance of electronic devices, strengthen wireless connections and secure mobile communications against intrusion... can be tuned when small voltage (less than alkaline battery) applied" Related: New shield blocks electromagnetic interference while allowing wireless optical signals https://phys.org/news/2023-01-shield-blocks-electromagnetic-wireless-optical.html Electrospun nanomaterial offers great protection against electromagnetic interference https://phys.org/news/2023-01-electrospun-nanomaterial-great-electromagnetic.html New receiver chip blocks signal interference that slows mobile device performanc

New hydrogel actuator allows soft robots to move over rough terrain

https://techxplore.com/news/2023-01-hydrogel-actuator-soft-robots-rough.html "adaptive deformation... multi-dimensional off-road locomotion on natural terrains...  hydrogel diverse biomimetic forms due to self-deformation and soft-tissue-like... inspired by inchworms... photothermal hydrogel layer containing Fe3O4 nanoparticles grown on surface of isotropic poly(N-isopropyl acrylamide) (PNIPAm) sponge, forming anisotropic bilayer structure via interfacial diffusion polymerization... could crawl on the 2D rough substrate or overstep complex sandy terrains" Related: Squid tissues and chemistry combine for versatile hydrogels https://phys.org/news/2023-01-squid-tissues-chemistry-combine-versatile.html Eco‐friendly 3D printed polymer composite parts made from chitosan of terrestrial insects https://phys.org/news/2023-04-ecofriendly-3d-polymer-composite-chitosan.html Unusual interactions between polymers explain hydrogel formation https://phys.org/news/2023-04-unusual-interactions

Antennas 3D-printed could bring 5G and 6G to remote communities

https://techxplore.com/news/2023-01-3d-printed-antennas-5g-6g-remote.html "millimeter wave 3D-printed antennas match radio frequency performance of those produced using conventional manufacturing... made much cheaper (cost only a few pounds) and faster (in as little as a few hours)... silver nanoparticles, up to 48 GHz... could also be used to produce antennas on a much larger scale and therefore have the capability to cover more areas and bring the fastest mobile networks to parts of the world that have not yet had access" Related: Scientists develop energy-saving, tunable meta-devices for high-precision, secure 6G communications https://techxplore.com/news/2023-03-scientists-energy-saving-tunable-meta-devices-high-precision.html Spectrumchain: A disruptive dynamic spectrum sharing framework for 6G https://techxplore.com/news/2023-03-spectrumchain-disruptive-dynamic-spectrum-framework.html

Internet of Light integrates illumination, communication and ministration

https://techxplore.com/news/2023-01-internet-illumination-communication-ministration.html "interfaces with Internet of Things to provide intelligent lighting along with information services... transmits information by modulating LED light intensity... supports information services such as localization, data transmission and optical therapy without causing eyestrain or damage... combined sensors, communication modules and smart processing units into individual LED lamps to form node... collects information such as light intensity, color, level of hazardous gas, moving objects"

Will nanowire LEDs be the ultimate light engine for AR and VR displays?

https://techxplore.com/news/2023-01-nanowire-ultimate-ar-vr-displays.html "microLED exhibits high peak brightness, excellent dark state, high resolution density, small formfactor, and long lifetime... After optimization, effective LEE of blue, green, and red nanowire LEDs increases from [9.3%, 18.8%, 30.6%] to [10.0%, 25.6%, 33.0%], respectively... nanowire LEDs show a pronounced higher efficiency than µLED under small pixel size and high-resolution density" Related: Researchers grow precise arrays of nanoscale LEDs https://phys.org/news/2023-07-precise-arrays-nanoscale.html

Scientists make a quantum harmonic oscillator at room temperature

https://phys.org/news/2023-01-scientists-quantum-harmonic-oscillator-room.html "controls location and energy of quantum particles... applications: OLEDs and miniature lasers... organic semiconductor produce polaritons which show quantum states...  trapped light in thin layer of organic semiconductor sandwiched between two highly reflective mirrors... Polaritons, like moisture in the air, can condense... corralled this quantum liquid within pattern of laser beams made fluid oscillate... excite sample in one place, polariton lasing in another...  useful not only for lasers, but also for solar cells" Related: Dual-wavelength lasing: A new tool for steering high-harmonic generation https://phys.org/news/2023-05-dual-wavelength-lasing-tool-high-harmonic-generation.html

Deep-ultraviolet birefringent hydrogel based on 2D cobalt-doped titanate

https://phys.org/news/2023-01-deep-ultraviolet-birefringent-hydrogel-based-2d.html "synthesized two-dimensional (2D) inorganic cobalt-doped titanate (CTO) LC by using a wet chemical method. The 2D LC has large magnetic & optical anisotropy as well as high transmittance of > 70% in the wavelength of 300 ~ 350 nm, which enables the transmitted DUV modulation in a magnetic and portable way... applications: high density data storage, semiconductor micro-nano processing and photolithography" Related: New method to synthesize menthol https://phys.org/news/2023-03-method-menthol.html Engineering team develops multifunctional tendon-mimetic hydrogels https://medicalxpress.com/news/2023-04-team-multifunctional-tendon-mimetic-hydrogels.html

Artificial intelligence discovers new nanostructures

https://phys.org/news/2023-01-ai-nanostructures.html "newly discovered structures formed by self-assembly... blending two materials together using just the right chemical grating, and new AI capability CAMERA's gpCAM algorithm led to discovery of three new nanostructures, including a first-of-its-kind nanoscale ladder... focus X-ray beam on sample down to microns, whereby algorithm without human intervention, created material's numerous and diverse set of structures, updating with each subsequent X-ray measurement... electronics, catalysis applications" Related: Chemists cook up brand-new kind of nanomaterial https://phys.org/news/2023-01-chemists-cook-brand-new-kind-nanomaterial.html Unconventional experiments produce new nanoscale particles with big potential https://phys.org/news/2023-01-unconventional-nanoscale-particles-big-potential.html

Lithium sulfur flow battery with 250 Wh/L energy density

https://www.pv-magazine.com/2023/01/13/lithium-sulfur-flow-battery-with-250-wh-l-energy-density/ "StorTera low levelized cost of storage, long-duration, millisecond response single liquid flow battery lasts 30 years with minimal degradation... can be commercialized at scale... up to eight hours storage... minimum 7,500 cycles... improved safety no cooling requirements high flash point... recyclable materials... cost GBP 120 ($146.20)/kW and GBP 75/kWh... intelligent control platform optimizes continuously according to grid and weather data or by predicting demand peaks" Related: Protecting lithium metal anodes to enable long cycling practical Li-S batteries https://techxplore.com/news/2023-01-lithium-metal-anodes-enable-li-s.html Highly performing lithium sulfur batteries based on metallic molybdenum disulfide nanosheets https://techxplore.com/news/2023-01-highly-lithium-sulfur-batteries-based.html Elucidation of electrolyte decomposition behavior in all-solid-state lithium-s

New casting technology for aluminum component production in the car industry

https://techxplore.com/news/2023-01-technology-aluminum-component-production-car.html "Low-Pressure Casting (LPC)... cast bolts used in suspension components and eliminate extrusion stage from production process... results in fewer defects and gives raw material a high-quality surface finish... less expensive, more eco-friendly, more efficient and quicker... prevents wastage of large amounts of raw materials... gamechanger in the manufacture of aluminum car components" Related: Could single-sided welding unlock windfarm bottlenecks? https://www.powerengineeringint.com/renewables/wind/could-single-sided-welding-unlock-windfarm-bottlenecks/ Tesla achieves breakthrough in single-piece car casting, report says https://electrek.co/2023/09/14/tesla-breakthrough-single-piece-car-casting-report/