Today's Tech News: Notable or Not?

https://www.eurekalert.org/news-releases/1134888 "energy efficiency loss/ rapid operational degradation under environmental stress, overcome utilizing 3 different stacked absorber layers with varied band gaps maximizing solar harvesting. .. replaces problematic polymer hole transport layer with graphene oxide/ self-assembled monolayer bilayer, structurally/ electronically optimizing interface... 27.3% power conversion efficiency... record triple-junction solar stability maintaining >90% initial performance after 770 hours operation.... utility-scale"

https://techxplore.com/news/2026-05-iraa-doping-reshape-semiconductors-cleaner.html "chemical doping exhibits slow 24-hour incubation period/ leaves behind destructive metal ions like lithium, causing degradation over time... overcome utilizing additive-free chemical reaction eliminating harmful byproducts/ achieving optimal electric conductivity in seconds... long-term thermal/ environmental stability retaining peak power conversion efficiency under continuous operational stress...  scalable/ eco-friendly manufacturing: flexible electronics, wearable sensors, highly efficient solar arrays"

https://phys.org/news/2026-05-mechanochemistry-synthesis-molecules.html "solubility/ stability issues in organic electronics utilizing conductive molecules such as large polycyclic aromatic hydrocarbons: tend to clump/ degrade before reaction complete, overcome using high-speed ball milling breaking chemical bonds forcing reactions in solid state in fraction of the time/ higher yields, allowing longer chains of fused benzene rings... results in fewer side products/ easier purification/ lower costs... scalable semiconductor industrial manufacturing for: OLEDs, organic PV, flexible transistors" Related: Researchers develop inexpensive, fast and environmentally friendly method for organic synthesis https://www.eurekalert.org/news-releases/1144059

https://www.eurekalert.org/news-releases/1126123 "grow perovskite through porous nanoparticle alumina islands, maintaining electrical connection while structure acts like light diffuser... because material has few defects, photon re-absorbed/ re-emitted (re-cycled) until finds way out, recycling energy otherwise lost as heat... assembly molecules repair tiny defects, enabling 95% efficiency retention (was 67%) after 1,200 hours continuous use... massive step toward bifacial energy systems and smart displays, without sacrificing durability for performance"

https://www.eurekalert.org/news-releases/1124931 "graphene nanoribbons lack ability to turn electricity on/ off making it hard to use for computer chips without complex modifications, overcome using single chain combining 2 different types of molecules: electron donors that want to give up electrons/ electron acceptors that want to take in electrons... pristine: built on gold surface in vacuum... organic/ flexible electronics in smart clothing, bioelectronic brain-machine interface, in vivo sensors, ultra-efficient thin-film PV with fine-tuned donor-acceptor sequences" Related: Natural-language AI helps chemists design molecules step by step https://phys.org/news/2026-04-natural-language-ai-chemists-molecules.html Redesigning metals at the atomic level to boost future technology https://www.eurekalert.org/news-releases/1125778

https://www.eurekalert.org/news-releases/1122760 "soft perovskite lattices distort, trapping energy/ reducing efficiency, overcome removing crystals from solution at high temperatures rather than allowing them to cool locking in highly ordered structure... allows exciton travel >2 μm without losing energy, order of magnitude better than previous perovskites... 1st time 3+ perovskite layers connected in chemically stable configuration using formamidinium cations at room temperature, allowing broader solar spectrum capture... tandem solar, quantum, ultra- sensors" Related: Precision boost for quantum sensor technology https://www.eurekalert.org/news-releases/1123822

https://www.eurekalert.org/news-releases/1120166 "high-energy blue light often loses excess energy as heat, overcome allowing 1 high-energy photon to generate 2 lower-energy exciton energy carriers... molybdenum-based metal complex flips its electron spin during light absorption capturing, extracting, emitting fission process' multiplied energy, with tuning of energy levels limiting exciton wastage... could eventually be applied not just to solar cells, but also to high-efficiency LEDs and next-generation quantum technologies"

https://phys.org/news/2026-03-nanoscale-bottleneck-gen-electronics.html "impurity doping to improve conductivity fails because perovskites chemically sensitive/ physically soft, overcome: placing metal electrode on perovskite surface using van der Waals method preventing physical damage, apply mild heat to silver which diffuses slightly into surface, UV converts silver into silver oxide nanoclusters acting as electron acceptors creating p-doped region at 25 (reduced from 250) nm interface... electrons pass via Fowler–Nordheim quantum tunneling, not thermionic emission" Related: New microporous aerogel uses van der Waals forces for flexible, moldable shaping https://phys.org/news/2026-04-microporous-aerogel-van-der-waals.html Gas-solid van der Waals interactions drive evolution of surface nanostructures https://www.eurekalert.org/news-releases/1133384

https://www.eurekalert.org/news-releases/1120559 "light hitting zinc selenide quantum dots attached to phenol-pyridine forces hole/ electron movement, synchronized with proton quantum mechanically tunneling from 1 part of molecule to another and back... process fast/ temperature insensitive, enables switching triplet energy transfer on/ off... improves organic solar cell/ laser efficiency, speeds up chemical reaction catalysis used in environmental cleanup or drug manufacturing (photoredox catalysis)" Related: CityUHK researchers achieve first-ever recycling spin-triplet excitons for power generation, boosting organic photovoltaics efficiency to 20.5% https://www.eurekalert.org/news-releases/1134814 UW chemists find a new way around a long-established limitation to electron transfer selectivity https://www.eurekalert.org/news-releases/1137574 Researchers uncover molecular strategy for efficient triplet generation https://www.eurekalert.org/news-releases/1142900 Three quantum ...

https://www.joh.cam.ac.uk/about-us/news-and-research/molecular-catapult-fires-electrons-at-the-limits-of-physics "instead of diffusing randomly through material... splitting exciton into free electron/ hole often involves energy loss, overcome harnessing coherent vibrations achieving ultrafast/ highly efficient ballistic movement... electrons move on the same clock as the atoms, proving that the ultimate speed of a solar material depends as much on its vibrations as its electronic structure... organic solar cells, photodetectors, photocatalytic systems for clean hydrogen production" Related: No battery needed: Single organic device can act as both indoor solar cell and photodetector https://techxplore.com/news/2026-03-battery-device-indoor-solar-cell.html

https://www.eurekalert.org/news-releases/1117579 "patented, perovskite solar cells' encapsulant improves durability/ light absorption...film surface triboelectric, single raindrop can produce >100 V... device stable in extreme conditions, including full water immersion/ repeated humidity-temperature stress cycles... environmental/ structural IoT sensors. smart cities' signaling/ autonomous auxiliary lighting/ monitoring systems, providing power for weather/ marine stations in remote/ inaccessible areas" Related: Sustainable moisture-driven electricity generation using waste materials https://www.nature.com/articles/s41598-026-61180-8

https://www.eurekalert.org/news-releases/1112792 "materials lacking inversion symmetry required to generate current without a p–n junction... overcome, shifting focus from bulk crystal to surface where symmetry naturally broken... thallium on silicon(111) superior platform rivaling ferroelectric materials... abundant/ symmetric materials instead of rare/ complex crystals... new pathways for highly efficient junction-free PV, spin current generation with light alone/ no magnets or external voltages for ultrafast low-power spintronic data processing devices" Related: Trapping light on thermal photodetectors shatters speed records https://www.eurekalert.org/news-releases/1118813

https://www.eurekalert.org/news-releases/1113980 "exciton behavior trade-off: must recombine tightly to produce light in OLEDs/ must split quickly into free charges to generate power in OPVs... overcome utilizing Multiple-Resonance Thermally Activated Delayed Fluorescence managing exciton binding energy/ minimizing voltage loss during power generation... larger binding energy = yellow light, smaller = blue, for full-color control... lighting systems generating power during day/ fuel illumination at night, self-charging: smartphones, wearables, sensors" Related: Stacked ionic cells inspired by electric rays generate over 100V for small electronics https://techxplore.com/news/2026-01-stacked-ionic-cells-electric-rays.html One fiber, two functions: power generation and harmful gas detection https://www.eurekalert.org/news-releases/1139975

https://techxplore.com/news/2026-01-hidden-defects-degrade-semiconductor-1000x.html "Hall measurements using electric/ magnetic fields to track electron motion, improved upon by adding controlled light illumination/ temperature variation... under weak light traps begin electron capture, traps fill up as light intensity increases allowing subsequent electrons to move freely... observing transition enables hidden defects' density/ behavior calculation... simultaneously measures electron speed/ lifespan... analyzed both silicon/ perovskite solar cells, identifying performance degradation source... memory chips" Related: Electron microscopy shows 'mouse bite' defects in semiconductors https://techxplore.com/news/2026-03-electron-microscopy-mouse-defects-semiconductors.html Researchers solve longstanding problem in measuring semiconductor defects https://www.eurekalert.org/news-releases/1128355 The secret to better solar cells? Think like a baker https://www.unsw.edu.a...

https://techxplore.com/news/2025-12-ionic-liquids-perovskite-degradation-solar.html "acts as multi-functional additive during fabrication: binds to positively charged lead ions filling halide vacancies, added to perovskite precursor slows down crystallization for larger grains/ fewer imperfections, additive migrates to bottom (buried) interface, suppressing defects where perovskite meets underlying layer... tested at 90°C, 1,500 hours simulated full sunlight: retained 90% initial performance... scalable: ionic liquid easy to synthesize/ compatible with large-area panel blade coating methods... tandem solar compatible"

https://www.eurekalert.org/news-releases/1110092 "non-toxic, low-cost, stable, less electrical loss... larger, more uniform grains enhances charge transport/ collection... at interface between molybdenum back contact/ thin-film absorber: unwanted chemical reactions/ unintended atomic movement, overcome using 7-nm thick germanium oxide interlayer created exploiting oxidation during vapor transport deposition... 4.81% (was 3.71) Power Conversion Efficiency... contact resistance: thin-film transistors; PCE: thermoelectric; performance: photodetector/ memory devices" Related: JA sets new 28.2% efficiency record for BC solar cells https://www.cleanroomtechnology.com/ja-sets-new-28-2-efficiency-record-for-bc More durable tin-based material to replace toxic lead while achieving high solar-cell efficiency https://www.eurekalert.org/news-releases/1142549

https://www.eurekalert.org/news-releases/1109310 "more efficient, durable, scalable, cheaper... sulfuric acid applied to nanotube films, improving electrical conductivity, maintaining high transparency, stabilizing nickel-based interfacial layer, which improves connection between internal cell components, >20% power conversion efficiency... after month of heat, humidity, sunlight, retained > 95% initial performance, when repeatedly bent 1,000X lost only about 5% efficiency, roll-to-roll chemical vapor deposition 6X cheaper than ITO sputtering (by $200/ m2), scalable" Related: Blade-coating strategy advances scalable production of high-efficiency perovskite solar cells https://techxplore.com/news/2026-08-blade-coating-strategy-advances-scalable.html

https://www.eurekalert.org/news-releases/1109000 "removing positively charged cesium cations from quantum dots creating bromide-rich solution, then manganese cations added enabling dots to absorb magnetic cations into their structure, displacing about 40% of lead ions, resulting in magnetic, cheap, scalable, near 100% efficient manganese-doped quantum dots... lighting: energy-efficient dots glow in desirable warmer, orange hues... cheaper/ scalable (no protective stabilizing coating)... more efficient solar cells, stable quantum computer magnetic dot qubits" Related: Ordered 'supercrystal' could make lasers faster, smaller and more efficient https://phys.org/news/2026-02-supercrystal-lasers-faster-smaller-efficient.html

https://www.geeky-gadgets.com/graphene-perovskite-solar-cell-efficiency/ "improved electron mobility/ minimized resistance... material costs up to 80% less (no precious metals)...  nano-film encapsulation guards against heat, moisture, UV degradation... reliable performance over long periods... use in: drones, satellites, portables, IoT powered by LEDs, rooftops... 98% recyclable...future: multi-junction cells, which could push efficiencies beyond 35% suggesting future where solar energy is not just an alternative, but the dominant, cost-effective standard for global energy needs"

https://phys.org/news/2025-11-subtle-perovskites-solar-cells-quantum.html brighter/ more efficient LEDs: by connecting crystal structure directly to both efficiency/ advanced optical functionality minimizing energy dissipation from iodine vacancies... solar cells: improve stability/ power conversion efficiency by minimizing energy dissipation from iodine vacancies... spintronics/ quantum devices: achieve Rashba effect, exhibiting 2 subbands with opposite spin states, also benefited by resulting circularly polarized light emission... secure optical communication: also benefited" Related: Focus on performance of perovskite light-emitting diodes (2026) https://www.eurekalert.org/news-releases/1121729