High-performance near-infrared photodetectors based on C3N quantum dots integrated with single-crystal graphene
作者： Yun Zhao , Xiaoqiang Feng , Menghan Zhao , Xiaohu Zheng , Zhiduo Liu
DOI: 10.1039/D0TC04621C
关键词: Single crystal 、 Responsivity 、 Graphene 、 Nanomaterials 、 Photocurrent 、 Materials science 、 Quantum dot 、 Electric field 、 Photodetector 、 Optoelectronics
摘要: Quantum dots (QDs) integrated with two-dimensional (2D) nanomaterials hold potential use in photodetector devices due to the unique light absorption of QDs and excellent carrier transport properties 2D nanomaterials. A simple strategy fabricate hybrid graphene QD photodetectors using a single-crystal monolayer film as channel at top perfectly wrapping it be contact bottom layer C3N is developed. This can lead tight between interface, thus facilitating an efficient collection all photo-generated carriers. Photodetectors, employing graphene, exhibited distinct photocurrent response high responsivity detectivity 1550 nm. The map simulated electric field distribution reveal fast recovery, indicating that enhanced local near graphene. present research indicates combining architectures for optoelectronic improve their performance thereof.
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