Flexible, UV-responsive perovskite photodetectors with low driving voltage

Hao Li; Dandan Yang; Ting Zhang; Peng Zhang; Feng Wang; Chaojie Qin; Ruihan Yang; Zhi David Chen; Shibin Li

doi:10.1007/s10853-019-03721-3

Flexible, UV-responsive perovskite photodetectors with low driving voltage

Hao Li, Dandan Yang, Ting Zhang, Peng Zhang, Feng Wang, Chaojie Qin, Ruihan Yang, Zhi David Chen, Shibin Li^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

Although lead halide perovskites with tunable band gaps are widely used for photodetection in the visible spectrum, very few studies have been focused on the use of perovskites in ultraviolet detection. Here, we report that MAPbI_3−xCl_x-based photodetectors (PDs) show a response in the ultraviolet spectrum as well as yield very fast photoresponse speed (< 80 µs/90 µs) and excellent detectivity (10¹² Jones with 365 nm lamp) with very low driving voltage (0.3 V). The results demonstrate the enhancement of photoelectric performance of the PDs in the ultraviolet spectrum is because the doping of Cl in MAPbI₃ increases the bandgap and the crystalline grain size of MAPbI_3−xCl_x film. Moreover, 10%PbCl₂-MAPbI_3−xCl_x-based flexible photodetectors displays remarkable mechanical flexibility.

Original language	English
Pages (from-to)	11556-11563
Number of pages	8
Journal	Journal of Materials Science
Volume	54
Issue number	17
DOIs	https://doi.org/10.1007/s10853-019-03721-3
Publication status	Published - 15 Sept 2019
Externally published	Yes

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title = "Flexible, UV-responsive perovskite photodetectors with low driving voltage",

abstract = "Although lead halide perovskites with tunable band gaps are widely used for photodetection in the visible spectrum, very few studies have been focused on the use of perovskites in ultraviolet detection. Here, we report that MAPbI3−xClx-based photodetectors (PDs) show a response in the ultraviolet spectrum as well as yield very fast photoresponse speed (< 80 µs/90 µs) and excellent detectivity (1012 Jones with 365 nm lamp) with very low driving voltage (0.3 V). The results demonstrate the enhancement of photoelectric performance of the PDs in the ultraviolet spectrum is because the doping of Cl in MAPbI3 increases the bandgap and the crystalline grain size of MAPbI3−xClx film. Moreover, 10%PbCl2-MAPbI3−xClx-based flexible photodetectors displays remarkable mechanical flexibility.",

author = "Hao Li and Dandan Yang and Ting Zhang and Peng Zhang and Feng Wang and Chaojie Qin and Ruihan Yang and Chen, {Zhi David} and Shibin Li",

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T1 - Flexible, UV-responsive perovskite photodetectors with low driving voltage

AU - Li, Hao

AU - Yang, Dandan

AU - Zhang, Ting

AU - Zhang, Peng

AU - Wang, Feng

AU - Qin, Chaojie

AU - Yang, Ruihan

AU - Chen, Zhi David

AU - Li, Shibin

PY - 2019/9/15

Y1 - 2019/9/15

N2 - Although lead halide perovskites with tunable band gaps are widely used for photodetection in the visible spectrum, very few studies have been focused on the use of perovskites in ultraviolet detection. Here, we report that MAPbI3−xClx-based photodetectors (PDs) show a response in the ultraviolet spectrum as well as yield very fast photoresponse speed (< 80 µs/90 µs) and excellent detectivity (1012 Jones with 365 nm lamp) with very low driving voltage (0.3 V). The results demonstrate the enhancement of photoelectric performance of the PDs in the ultraviolet spectrum is because the doping of Cl in MAPbI3 increases the bandgap and the crystalline grain size of MAPbI3−xClx film. Moreover, 10%PbCl2-MAPbI3−xClx-based flexible photodetectors displays remarkable mechanical flexibility.

AB - Although lead halide perovskites with tunable band gaps are widely used for photodetection in the visible spectrum, very few studies have been focused on the use of perovskites in ultraviolet detection. Here, we report that MAPbI3−xClx-based photodetectors (PDs) show a response in the ultraviolet spectrum as well as yield very fast photoresponse speed (< 80 µs/90 µs) and excellent detectivity (1012 Jones with 365 nm lamp) with very low driving voltage (0.3 V). The results demonstrate the enhancement of photoelectric performance of the PDs in the ultraviolet spectrum is because the doping of Cl in MAPbI3 increases the bandgap and the crystalline grain size of MAPbI3−xClx film. Moreover, 10%PbCl2-MAPbI3−xClx-based flexible photodetectors displays remarkable mechanical flexibility.

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Flexible, UV-responsive perovskite photodetectors with low driving voltage

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