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- W2808889648 abstract "Perovskite-based photodetectors show a great promise thanks to the material's excellent photogeneration and broadband device operation. Amongst the fundamental limitations of halide perovskites, humidity-induced degradation arises as the main impediment towards viable commercial-grade perovskite-based technologies. Here, we report a stable, reproducible and reliable pseudo halide perovskite nanowire network-based photodetector with superior performances. The perovskite nanowire network is deposited using a two-step spin-coating process atop patterned substrates under ambient conditions with relative humidity (RH%), higher than 50%. Because of the particular 1D perovskite nanowire morphology, our devices require no charge collectors, which reduces fabrication steps and costs. Most importantly, we demonstrate that incorporation of lead thiocyanate (Pb(SCN)2) directly in the precursor solution promotes the synthesis of stable hybrid perovskite nanowire networks in ambient conditions. These devices exhibit response time as fast as 50 µs and responsivities up-to ~0.23 A W−1 at 2 V bias. Also, the optimum photodetector exhibited high specific detectivity of 7.1 × 1011 cm Hz1/2 W−1. This novel and yet simple device architecture brings fabrication challenges to a minimum by allowing synthesis of perovskite nanowires under high humidity conditions." @default.
- W2808889648 created "2018-06-29" @default.
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- W2808889648 date "2018-09-01" @default.
- W2808889648 modified "2023-10-14" @default.
- W2808889648 title "High-performance pseudo-halide perovskite nanowire networks for stable and fast-response photodetector" @default.
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- W2808889648 doi "https://doi.org/10.1016/j.nanoen.2018.06.057" @default.
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