Metal halide-based photodetector using one-dimensional MAPbI_3 micro rods

摘要

In the present work, we report the fabrication of a photodetector using methylammonium lead iodide perovskite (M APbI_3) micro rod. Photosensitivity of the Ag/MAPbI_3/Ag photodetector has been studied under various light intensities ranging from 10 to 100 mW/cm~2. The MAPbI_3 perovskite micro rod-based photodetector shows a high on/off ratio (4.47 × 10~5), and fast response & recovery times (2.7 ms, each), as compared to the photodetectors using perovskite films. This work could initiate new perspectives for perovskite micro rods to be employed in high-performance optoelectronic devices.