Chongxin Shan

Abstract: The newly emerging metal halide perovskites have attracted considerable attention due to their exceptional optoelectronic properties. This upsurge was initially driven when the power conversion efficiency of perovskite-based photovoltaic devices exceeded 23%. Due to their optoelectronic properties, perovskite materials have also been used in light-emitting diodes, photodetectors, lasers, and memory devices. This study comprehensively discusses the recent progress of all-inorganic perovskite-based photodetectors, focusing on their structures, morphologies of their constituent materials, and diverse device architectures that improve the performance metrics of these photodetectors. A brief outlook, highlighting the main existing problems, possible solutions to these problems, and future development directions, is also provided herein.

TL;DR: This study demonstrates significant improvements of ZnO nanowire lasers by the piezophototronic effect, and the laser output power can be enhanced by a factor of 4.96 and the threshold voltage can be decreased from 48 to 20 V by applying pressure.

TL;DR: This paper demonstrates a graphene/C 60 /pentacene vertical phototransistor to tune both the photoresponse time and photocurrent based on light modulation, and probes the primary reason for the distinct modulation results between the 5 and 11 nm C 60 devices.

TL;DR: In this paper, the optical and electrical properties of FeSe thin films are studied by both optical absorption and Hall measurements, which suggest that ferromagnetic FeSe is a metal instead of a semiconductor.