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

Nanoscale. 2016 Aug 18;8(33):15158-61. doi: 10.1039/c6nr01828a.

Authors

Xiaosheng Tang¹, Zhiqiang Zu¹, Haibing Shao¹, Wei Hu¹, Miao Zhou¹, Ming Deng¹, Weiwei Chen¹, Zhigang Zang¹, Tao Zhu¹, Junmin Xue²

Affiliations

¹ Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China. xstang@cqu.edu.cn.
² Department of Materials Science & Engineering, National University of Singapore, Singapore.

PMID: 27500438
DOI: 10.1039/c6nr01828a

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 10(3).