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We report solar-bind UV detectors based on nanophotonic metal-oxide-semiconductor (MOS) structures. The nanostructured metal acts as the UV absorber, while the large meta/oxide interfacial energy barrier (>4 eV) eliminates the solar response. Quantum efficiencies >100% are demonstrated due to hot-electron induced avalanche gain in Si.
A facile one‐pot route has been developed for the synthesis of carbon‐encapsulated Cu–Ag dimetallic nanoparticles (C–CuAg NPs). The synthesis was conducted using AgNO3 and Cu(NO3)2 as metal precursors and ascorbic acid as the reduction agent and carbon source. The catalytic activities of the C–CuAg NPs for the reduction of 4‐nitrophenol (4‐NP) with NaBH4 were tracked by UV/Vis spectroscopy, which...
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