Ultrafast self-powered CsPbCl<sub>3</sub>ultraviolet photodetectors with choline chloride for surface passivation and charge transport regulation
Shulan Jiang, Ze‐Liang Hou, Xin Zheng, Qian Wu, Xiaoqi Yang, Wuqiong Cai, Ying Yi, Siyi Cheng, Guojun Wen, Xingyue Liu
Abstract
ChCl is introduced to passivate the surface and grain boundary defects of CsPbCl 3 films for their application in high-performance UV detection and an ultrahigh on/off ratio of 3.91 × 10 5 is obtained at 0 V bias.
Topics & Concepts
PassivationMaterials scienceUltravioletPhotodetectorUltrashort pulseOptoelectronicsGrain boundaryNanotechnologyOpticsComposite materialLayer (electronics)MicrostructureLaserPhysicsPerovskite Materials and Applications2D Materials and ApplicationsLuminescence Properties of Advanced Materials