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

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

Research output: Contribution to journalArticle

332 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)1912-1918
Number of pages7
JournalAdvanced Materials
Volume27
Issue number11
DOIs
StatePublished - Mar 18 2015

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Photodetectors
Perovskite
Electron injection
Electric potential
Cations
Positive ions
perovskite

Keywords

  • optoelectronics
  • organolead triiodide perovskites
  • photodetectors
  • solution processing

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Dong, R., Fang, Y., Chae, J., Dai, J., Xiao, Z., Dong, Q., ... Huang, J. (2015). High-Gain and Low-Driving-Voltage Photodetectors Based on Organolead Triiodide Perovskites. Advanced Materials, 27(11), 1912-1918. https://doi.org/10.1002/adma.201405116

High-Gain and Low-Driving-Voltage Photodetectors Based on Organolead Triiodide Perovskites. / Dong, Rui; Fang, Yanjun; Chae, Jungseok; Dai, Jun; Xiao, Zhengguo; Dong, Qingfeng; Yuan, Yongbo; Centrone, Andrea; Zeng, Xiao Cheng; Huang, Jinsong.

In: Advanced Materials, Vol. 27, No. 11, 18.03.2015, p. 1912-1918.

Research output: Contribution to journalArticle

Dong, R, Fang, Y, Chae, J, Dai, J, Xiao, Z, Dong, Q, Yuan, Y, Centrone, A, Zeng, XC & Huang, J 2015, 'High-Gain and Low-Driving-Voltage Photodetectors Based on Organolead Triiodide Perovskites', Advanced Materials, vol. 27, no. 11, pp. 1912-1918. https://doi.org/10.1002/adma.201405116
Dong, Rui ; Fang, Yanjun ; Chae, Jungseok ; Dai, Jun ; Xiao, Zhengguo ; Dong, Qingfeng ; Yuan, Yongbo ; Centrone, Andrea ; Zeng, Xiao Cheng ; Huang, Jinsong. / High-Gain and Low-Driving-Voltage Photodetectors Based on Organolead Triiodide Perovskites. In: Advanced Materials. 2015 ; Vol. 27, No. 11. pp. 1912-1918.
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