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Self-powered photodiodes integrating sub-20 nm ferroelectric layer into WSe2 channel with sub-fJ programming energy for edge computing

https://www.eurekalert.org/news-releases/1138477 "vision processing has latency/ energy bottlenecks from image sensing/ computing separation... overcome with ferroelectric homojunction using reconfigurable photodiode integrating: ambipolar tungsten diselenide/ hafnium zirconium oxide... split-gate enables polarity-switchable photocurrent under 0 external bias, allowing optical signal processing at pixel level... 50 μs switching speed, >100 seconds non-volatile state retention... CMOS-compatible energy-efficient unified sensing/ memory/ computing vision systems"
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World's first room temperature electrically pumped perovskite polariton laser diode drastically reduces threshold current density

https://phys.org/news/2026-07-electrically-perovskite-polariton-laser-diode.html "high-quality-factor microcavity + durable lead-halide perovskite gain layer, achieving stable, continuous-wave polariton lasing under direct electrical injection... up to orders-of-magnitude lower current densities compared to conventional laser diodes... electrically driven, room-temperature, ultra-low-power, highly scalable coherent polariton laser polariton laser integrable onto silicon photonic circuits" Related: Researchers demonstrate first fully solution-processed solid-state polariton laser https://www.eurekalert.org/news-releases/1139095
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Single neuromorphic van der Waals heterostructure diode integrates sensing/ memory/ processing for speed, energy efficiency, size

https://techxplore.com/news/2026-03-diode-memory-smart-cameras.html "AI cameras limited by memory wall of speed and energy bottleneck caused by moving massive amounts of visual data... overcome with: light-capturing high-sensitivity image sensor, non-volatile memory, in-sensor computing executing basic AI tasks (in-pixel pattern recognition/ image filtering)... up to 90% less smart camera power consumption, virtually no speed latency... much thinner/ lighter camera modules... edge AI... autonomous vehicles, drones, high-speed industrial robots, wearables, medical imaging" Related: This new brain-like chip could slash AI energy use by 70% https://www.sciencedaily.com/releases/2026/04/260422044633.htm Designable van der Waals crystal realizes artificial neuronal cell mimicking with light https://www.eurekalert.org/news-releases/1132264
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