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Ultrafast Response p‐Si/n‐ZnO Heterojunction Ultraviolet Detector Based on Pyro‐Phototronic Effect
Author(s) -
Wang Zhaona,
Yu Ruomeng,
Wang Xingfu,
Wu Wenzhuo,
Wang Zhong Lin
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201600884
Subject(s) - materials science , ultraviolet , ultrashort pulse , optoelectronics , heterojunction , wurtzite crystal structure , response time , detector , zinc , nanowire , nanotechnology , optics , laser , physics , computer graphics (images) , computer science , metallurgy
A light‐self‐induced pyro‐phototronic effect in wurtzite ZnO nanowires is proposed as an effective approach to achieve ultrafast response ultraviolet sensing in p‐Si/n‐ZnO heterostructures. The relatively long response/recovery time of zinc‐oxide‐based ultraviolet sensors in air/vacuum has long been an obstacle to developing such detectors for practical applications. The response/recovery time and photoresponsivity are greatly improved by the pyro‐phototronic effect.