Abstract
AbstractWith the rapid development of optoelectronics, the demand for flexible electronic products such as smart phones, wearable devices, and electronic tattoos continues increasing. As a typical optoelectronic device, flexible photo detectors with bendable and foldable functions are widely used in various fields. As a new functional material with excellent electrical and optical properties, graphene can be composited with various flexible substrates. Among them, graphene-based optoelectronic devices with heterostructures have excellent properties and have become a research hotspot in the field of photoelectric detection in recent years. This article first reviews the development of graphene-based photo detectors. Then focus on the systematic analysis of three different types of grapheneheterostructure photodetectors, discuss its unique coupling mechanism and the novel characteristics that they exert. Finally, it summarizes the future applications of graphene heterojunction flexible photodetection and the challenges faced in this field.KeywordsGraphenePhotodetectorHeterostructureFlexible device
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