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Single-crystal nanowires made from niobium arsenide become more conductive as they get thinner, paving way for sub-2-nm chips

https://phys.org/news/2026-07-thinner-wires-faster-electrons-quantum.html "shrunk copper wires have massive resistance spikes, overcome replacing failing copper interconnects at nm-scale, enabling smooth electron flow along surfaces/ edges without scattering, at room-temperature... thermomechanical nanomolding forges with precise structural dimensions... handles structural imperfections well... sub-2-nanometer microchip interconnects, although arsenic toxicity may slow commercial viability"
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Black arsenic photodetector with rapid response at room temperature and exceptional dual-band light response

https://phys.org/news/2024-05-scientists-black-arsenic-visible-infrared.html "high carrier mobility, dependent on layer thickness, visible and IR photoconductive, n-type depletion-mode field effect transistor, good Ohmic contact... peak photoresponsivity 387.3 mA·W−1 at a near-IR wavelength of 825 nm without the need for an external bias, and achieved a high detectivity of 1.37×108 Jones. The response mechanism across the visible to infrared spectrum is primarily attributed to the photoconductive effect... high-speed optoelectronics, room-temperature broadband photodetection" Related: Bipolar-barrier tunnel heterostructures for high-sensitivity mid-infrared photodetection https://www.eurekalert.org/news-releases/1094209 New oligomer-based organic photodetector achieves 1200 nm peak photoresponse https://www.eurekalert.org/news-releases/1105509 Sensitive SWCNT-based pyroelectric phototransistors enable broadband room-temperature IR detection https://www.eurekalert.org/news-rel...
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