High-Gain and Low-Driving-Voltage Photodetectors Based on Organolead Triiodide Perovskites

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Rui Dong
  • Yanjun Fang
  • Jungseok Chae
  • Jun Dai
  • Zhengguo Xiao
  • Qingfeng Dong
  • Yongbo Yuan
  • Andrea Centrone
  • Jinsong Huang

Detail(s)

Original languageEnglish
Pages (from-to)1912-1918
Journal / PublicationAdvanced Materials
Volume27
Issue number11
Publication statusPublished - 18 Mar 2015
Externally publishedYes

Abstract

Solution-processed organometal trihalide perovskite photodetectors show a high photoconductive gain of above 400 across the UV to NIR range at a very low bias of -1 V. The charge traps caused by large concentrations of Pb2+ cations at the top surface of the perovskite film are critical for achieving high gain in these devices via a trapped-hole-induced electron injection mechanism.

Research Area(s)

  • optoelectronics, organolead triiodide perovskites, photodetectors, solution processing

Bibliographic Note

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Citation Format(s)

High-Gain and Low-Driving-Voltage Photodetectors Based on Organolead Triiodide Perovskites. / Dong, Rui; Fang, Yanjun; Chae, Jungseok et al.
In: Advanced Materials, Vol. 27, No. 11, 18.03.2015, p. 1912-1918.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review