Piezo-Phototronic Enhanced UV Sensing Based on a Nanowire Photodetector Array

• Published in: Advanced materials (Weinheim) Vol. 27; no. 48; pp. 7963 - 7969
• Main Authors: Han, Xun, Du, Weiming, Yu, Ruomeng, Pan, Caofeng, Wang, Zhong Lin
• Format: Journal Article
• Language: English
• Published: Germany Blackwell Publishing Ltd 22.12.2015
• Subjects: Adaptive systems; Alignment; Arrays; Computation; Detection; nanowire arrays; Nanowires; Optoelectronics; Photodetectors; piezo-phototronic effect; Schottky contacts; UV photodetectors; zinc oxides; zinc oxides; Schottky contacts; piezo-phototronic effect; UV photodetectors; nanowire arrays

A large array of Schottky UV photodetectors (PDs) based on vertical aligned ZnO nanowires is achieved. By introducing the piezo‐phototronic effect, the performance of the PD array is enhanced up to seven times in photoreponsivity, six times in sensitivity, and 2.8 times in detection limit. The UV PD...