Today's Tech News: Notable or Not?

https://www.eurekalert.org/news-releases/1117558 "thin film structurally flexible/ tunable, unlike bulk ceramics... high-entropy/ defect engineering achieving high energy density, high breakdown strength/ stability across wide temperature ranges/ high voltages/ rapid charge-discharge... miniature: aerospace electronics/ wireless communications, medical implants, IoT devices... more efficient/ renewable energy storage, safer medical devices, multilayer ceramic capacitors used in EVs/ automotive electronics/ power inverters"

https://www.eurekalert.org/news-releases/1116897 "polymer capacitors often brittle/ unusable under heat if without heavy/ expensive cooling... overcome using alloy having dielectric constant of 13.5 (value of 4 for each polymer alone), maintaining that value from -148 to 482°F... like oil/ water, the polymers don't mix, which promotes self-assembly into 3D structure that creates barriers against electric charge leaks... scalable since components cheap/ assembly simple... EVs' power electronics, aerospace, data centers, manufacturing" Related: Novel polymer alloy of commercially available plastics demonstrates unprecedented performance at high temperatures https://www.psu.edu/news/research/story/new-plastic-material-could-solve-energy-storage-challenge-researchers-report

https://www.eurekalert.org/news-releases/1115435 "MXenes do not just store charge physically but undergo complex chemical surface redox reactions that vary based on electrolyte... proton-based electrolytes lead to titanium atom oxidation state reduction... li-ion electrolytes lead to titanium atom oxidation state increase... bridges gap between batteries/ capacitors... layered 2D titanium carbide with conductive cores/ reactive surfaces... function with eco-friendly aqueous electrolytes... precise optimization for future energy storage materials"

https://www.eurekalert.org/news-releases/1114640 "2D MXenes' nano-confinement effect where flat layers stack on top of each other obstructing ion movement... overcome rolling sheets into 1D scrolls creating highways for rapid transport... Janus reaction creates structural asymmetry by altering surface chemistry with water, introducing lattice strain, causing layers to peel/ curl into tight tubes... scalable: produced 10g nanoscrolls across 6 different MXene types... superconductive solution-processed films: quantum sensors/ flexible superconducting interconnects"

https://techxplore.com/news/2026-01-ultrathin-coating-electronics-miracle-insulator.html "leakage not due to pinholes/ cracks, but chemistry: depositing aluminum oxide on top of titanium oxide, top layer steals oxygen from underlying layer, enabling quantum tunneling to allow electrons to leak through layers too thin the be effective barriers so they become incomplete/ leaky... stronger oxygen source immediately replaces any oxygen lost during reaction, allowing complete barrier formation even at <1 nm thickness"

https://techxplore.com/news/2025-12-ultrathin-ferroelectric-capacitors-compact-memory.html "3-layer sandwich: 5 nm platinum top electrode, 20 nm scandium-doped aluminum nitride ferroelectric layer, 5 nm platinum bottom electrode... easily embedded into logic circuits... treating the bottom platinum electrode at 840°C improved its crystal structure, vital for maintaining switching performance in thinner films... mobile/ IoT devices, integrating logic/ non-volatile (due to high remanent polarization from using scandium-doped aluminum nitride) memory, nano-scale ferroelectric RAM/ tunnel junctions"

https://www.eurekalert.org/news-releases/1106455 "heating/ cooling rates up to 1,000°C/ second synthesizes relaxor antiferroelectric lead zirconate film on silicon wafer... material's high-temperature paraelectric phase structure frozen at room temperature, creating <3 nm nanodomains acting as maze triggering high-performance relaxor antiferroelectric behavior, essential for highly efficient energy storage... capacitor: withstands high electric fields, strong polarization, 63.5 J/cm³ energy density... dense/ uniform film texture, thermally stable, scalable... prototype on 2" silicon wafers"

https://techxplore.com/news/2025-10-memristor-ferroelectric-memory-energy-efficient.html "share similar structural stack... memristors apply trained models, offering energy efficiency during read operations/ supporting in-memory computing... ferroelectric capacitors: store information via electric field switchable reversible ferroelectric polarization, endurance/ extremely low energy consumption during programming... integrates silicon-doped HfO₂ (of FeCAPs) with titanium scavenging layer (of memristors)... efficient machine learning, stores analog weights, edge AI without forgetting prior knowledge"

https://phys.org/news/2025-08-graphene-capacitors-rapid-high-depth.html "manipulate THz waves using modulators of metamaterials embedded with conductive 2D graphene... fast, tuneable optical response using graphene capacitors: <1 µm wide graphene patches placed inside each resonator metamaterial array... devices reflect signals from back surface... modulation depth >4 orders magnitude... both large modulation with slow speeds,/ small modulation with large speeds, >99.99% intensity modulation depth, 30 MHz speed... spectroscopy, security screening, medicine, communications"

https://www.eurekalert.org/news-releases/1087067 "integrates high: electrical insulation/ thermal conductivity by bonding kg-scale carbon quantum dots/ polyetherimide diamine monomer... forms crosslinked network, combining Coloumb blockade effect trapping free electrons, extending unbound electron movement trajectory... 200℃ electrical resistivity, 3.6 J cm-3 energy density, >90% discharged energy efficiency at 200 ℃, 0.65 W m-1 K-1 PEI-NH2-CQD thermal conductivity... scalable, high-temperature dielectric energy storage applications"

https://www.eurekalert.org/news-releases/1067293 "film capacitors withstanding high-temperature... new type of polysulfate compound to be used in polymer film capacitors shielded capacitors from destruction analyzed  by AI quickly identified key variables in polymer design... insulaor sandwiched between 2 conductive metal sheets.,, trained feedforward neural networks screening 50K polymer library, identified 3 with superior material quality, operational stability, durability... also for designing battery material... EVs, electric aviation, electronics, aerospace, inverters" Related: Battery-like computer memory keeps working above 1000°F https://www.eurekalert.org/news-releases/1067547 New physics-based AI model opens frontiers in dielectric materials exploration https://www.eurekalert.org/news-releases/1124488

https://www.eurekalert.org/news-releases/1065828 "high discharge density by chemical doping, hierarchical structure, advanced sintering, defect structure engineering... aliovalent rare earth ion Smx-BNBST solid solutions thorough defect-engineered phase/domain structure competition... 2.1 J/cm3 recoverable energy density at low 114 kV/cm electric field... strengthened polarization switching, improved dielectric temperature stability via thermal evolutions, reduced Pr demonstrated by PFM measurement... multi-layer ceramic capacitors"

https://ieeexplore.ieee.org/document/10640369 "converters rely on passive filtering due to high-frequency characteristics, but susceptible to wear-out/ failure... generate sinusoidal ac voltage without relying on capacitors... filter composed of planar transformer and H-bridge converter operating at high frequency, injecting voltage harmonics attaining sinusoidal output voltage... total output voltage harmonic distortion below IEEE 519 standard... topology reduces the passive components used for filtering" Related: Superconducting diode bridge efficiently converts AC to DC for quantum circuits https://phys.org/news/2025-05-superconducting-diode-bridge-efficiently-ac.html Rewiring the Future: MIT’s Superconducting Chip Breakthrough Could Unlock the True Power of Quantum Computing https://www.rudebaguette.com/en/2025/06/were-rewiring-the-future-mits-superconducting-chip-breakthrough-could-unlock-the-true-power-of-quantum-computing/

https://techxplore.com/news/2024-08-high-density-carbon-tube-nanoarray.html "high energy density/ quick frequency response needed for line-filtering... precisely manipulating pore structure of 3D interconnected porous anodized aluminum oxide templates via chemical vapor deposition... continuously tuning vertical pore diameter from 70 to 250 nm, inter-pore spacing from 100 to 450 nm... . reducing pore diameter/ inter-spacing significantly augmented surface area... exceptional frequency response. ultra-low equivalent series resistance, rapid resistance-capacitance time constant...scalable"

https://phys.org/news/2024-07-strategy-breakdown-strength-polarization-dielectric.html "electrostatic capacitors' ultrafast charging-discharging, ultrahigh power density, now with high capacitance, energy density... in-plane oriented BaTiO3 nanowire fillers and crystallization modulation of polyvinylidene fluoride matrix in in-situ uniaxial stretch process... concurrent increase in electric displacement and breakdown strength of polymer matrix... 843.0 kV/mm voltage endurance, 40.9 J/cm3 energy density... high-power pulse equipment, power transmission and transformation, 5G communication" Related: Bio-based polyester nanocomposites offer high performance and reprocessability https://phys.org/news/2025-03-bio-based-polyester-nanocomposites-high.html Metalla-Aromatic Complexes Enhancing the High Temperature Energy Storage Performance of Polycarbonate Polymer https://advanced.onlinelibrary.wiley.com/doi/10.1002/aenm.202504632

https://www.metaltechnews.com/story/2024/05/08/tech-bytes/nano-thin-ferroelectric-power-breakthrough/1750.html "30 nm thick ferroelectric capacitors: 3D core between 2D layers deposited with chemical and non-chemical bonds between each layer... up to 19X higher energy density, low loss (doesn't polarize), efficiency >90%, metamaterial, rapid charge/ discharge capacity... 2-layer molybdenum disulfide and barium titanate... balance between conductivity/ non-conductivity... tiny gaps adjust charge dissipation properties"

https://techxplore.com/news/2024-05-microcapacitors-ultrahigh-energy-power-density.html "2D hafnium oxide and zirconium oxide chips... material processed directly on top of microprocessors... 1 layer of dielecric is negative capacitance material enabling increased overall capacitance... grown by atomic layer deposition using standard materials/ techniques... tuning balances films at tipping point between ferroelectric and antiferroelectric enabling negative capacitance and polarization by even small electric field... 9X higher energy density, 170X higher power density."

https://techxplore.com/news/2024-04-high-energy-density-capacitors-2d.html "1X1 inch, scalable... improved permittivity, dielectric breakdown, charge polarization... layered polymers with oriented (utilizing mechanical exfoliation, transfer techniques) mechanically exfoliated 2D nanofiller flakes... 75 J/cm³ energy density, efficiency... mica, hexagonal boron nitride... continuous organic-inorganic interfaces... pacemakers, defibrillators, consumer electronics, EVs, aviation, defense... other polymeric systems: polymer topology manipulation, polymer grafted nanoparticles, layered block copolymers" Related: Ultrahigh dielectric permittivity in micron-sized Hf0.5Zr0.5O2 capacitors https://www.eurekalert.org/news-releases/1100257

https://techxplore.com/news/2024-04-storage-efficiency-durability-capacitors.html "improved energy storage, decreased energy loss when charged/ discharged, increased number of times can charge/ discharge... capacitor using multiple thin layers of different materials, increasing efficiency to >90%, 2X less energy loss... temperature range 25 – 200°C, charge/ discharge up to 10 billion times... pacemakers, defibrillators, radar, EVs"

https://phys.org/news/2024-04-material-supercharges-electrostatic-energy-storage.html "electrostatic capacitors enable ultrafast charging/ discharging, now with less energy loss using ferroelectric 2D/3D/2D heterostructures, by controlling time it takes for charge to dissipate, modulated by a small gap in material... engineered chemical and nonchemical bonds between each layer... sweet spot between conductivity and nonconductivity where semiconducting materials optimize energy storage... energy densiy up to 19X higher, efficiency >90%...  doesn't polarize and lose charge capability... EV capacitors"