Superior Photodetectors Based on All-Inorganic Perovskite CsPbI3 Nanorods with Ultrafast Response and High Stability

Tao Yang; Yapeng Zheng; Zhentao Du; Wenna Liu; Zuobao Yang; Fengmei Gao; Lin Wang; Kuo-Chih Chou; Xinmei Hou; Weiyou Yang

doi:10.1021/acsnano.7b08201

Superior Photodetectors Based on All-Inorganic Perovskite CsPbI₃ Nanorods with Ultrafast Response and High Stability

ACS Nano. 2018 Feb 27;12(2):1611-1617. doi: 10.1021/acsnano.7b08201. Epub 2018 Jan 17.

Authors

Tao Yang^{1

2}, Yapeng Zheng^{1

2}, Zhentao Du^{1

3}, Wenna Liu^{1

2}, Zuobao Yang¹, Fengmei Gao¹, Lin Wang¹, Kuo-Chih Chou², Xinmei Hou², Weiyou Yang¹

Affiliations

¹ Institute of Materials, Ningbo University of Technology , Ningbo 315016, People's Republic of China.
² State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing , Beijing 100083, People's Republic of China.
³ College of Materials Science and Engineering, Hunan University , Changsha 410082, People's Republic of China.

PMID: 29309723
DOI: 10.1021/acsnano.7b08201

Abstract

Currently, one-dimensional all-inorganic CsPbX₃ (X = Br, Cl, and I) perovskites have attracted great attention, owning to their promising and exciting applications in optoelectronic devices. Herein, we reported the exploration of superior photodetectors (PDs) based on a single CsPbI₃ nanorod. The as-constructed PDs had a totally excellent performance with a responsivity of 2.92 × 10³ A·W^-1 and an ultrafast response time of 0.05 ms, respectively, which were both comparable to the best ones ever reported for all-inorganic perovskite PDs. Furthermore, the detectivity of the PDs approached up to 5.17 × 10¹³ Jones, which was more than 5 times the best one ever reported. More importantly, the as-constructed PDs showed a high stability when maintained under ambient conditions.

Keywords: detectivity; nanorods; perovskites; photodetectors; stability.

Publication types

Research Support, Non-U.S. Gov't