Self-powered photodetectors based on CsxDMA1-xPbI3 perovskite films with high detectivity and stability

• DOI: 10.1016/j.nanoen.2020.104611
• Publication Date: 2020-02-13T16:59:50Z
• Authors: Ludong Li; Fan Zhang; Shuai Ye; Xiao Peng; Zhenhua Sun; Jiarong Lian; Liwei Liu; Junle Qu; Jun Song
• Keywords: Photodetection; Specific detectivity

Abstract Metal halide perovskites are widely studied in photodetection applications due to their outstanding optical and electrical properties. However, it is still a challenge to develop self-powered perovskite photodetectors with all the characteristics of high photoresponse performance, broad spectral response range, and excellent long-term stability. Herein, we demonstrate the high-performance self-powered photodetectors based on optimized CsxDMA1-xPbI3 (0.7 1 × 1013 Jones), fast response, and excellent long-term stability. These intriguing results indicate that CsxDMA1-xPbI3 perovskite films have tremendous application potential in future self-powered photoelectrical detection technology.