All-inorganic perovskite CsPb(Br/I)3 nanorods for optoelectronic application

Xiaosheng Tang; Zhiqiang Zu; Haibing Shao; Wei Hu; Miao Zhou; Ming Deng; Weiwei Chen; Zhigang Zang; Tao Zhu; Junmin Xue

doi:10.1039/C6NR01828A

All-inorganic perovskite CsPb(Br/I)₃ nanorods for optoelectronic application†

Xiaosheng Tang,*^a Zhiqiang Zu,^a Haibing Shao,^a Wei Hu,^a Miao Zhou,^a Ming Deng,^a Weiwei Chen,^a Zhigang Zang,^a Tao Zhu^a and Junmin Xue^b

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^a Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China
E-mail: xstang@cqu.edu.cn

^b Department of Materials Science & Engineering, National University of Singapore, Singapore

Abstract

Halide perovskites have attracted great attention in recent years as promising materials for optoelectronic devices, especially inorganic perovskites like CsPbX₃ (X = I, Br, Cl). Herein, CsPb(Br/I)₃ nanorods with a photoluminescence (PL) spectrum located at 610 nm have been obtained by a facile hot-injection method, and the UV-vis absorption spectrum further revealed that the bandgap absorption is around 1.98 eV. Furthermore, the photoelectric response of the CsPb(Br/I)₃ nanorods showed a relatively short rise-time (0.68 s) and decay-time (0.66 s), and the on/off photocurrent ratio of the CsPb(Br/I)₃ nanorod based photodetector was up to 10³.

Nanoscale

All-inorganic perovskite CsPb(Br/I)₃ nanorods for optoelectronic application†

Abstract

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All-inorganic perovskite CsPb(Br/I)₃ nanorods for optoelectronic application

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