An ultra-fast, self-powered and flexible visible-light photodetector based on graphene/Cu<sub>2</sub>O/Cu gradient heterostructures
Lujia Cong, Haitao Zhou, Mingzhu Chen, Hongbin Wang, He Chen, Jiangang Ma, Siyi Yan, Bingsheng Li, Haiyang Xu, Yichun Liu
Abstract
Graphene/Cu<sub>2</sub>O/Cu flexible self-powered photodetector has high visible light detection performance. This excellent performance is attributes to the inherent built-in electric field of the Cu<sub>2</sub>O absorption layer.
Topics & Concepts
PhotodetectorMaterials scienceGrapheneHeterojunctionOptoelectronicsVisible spectrumAbsorption (acoustics)Electric fieldNanotechnologyComposite materialQuantum mechanicsPhysicsZnO doping and propertiesCopper-based nanomaterials and applicationsGas Sensing Nanomaterials and Sensors