High responsivity and high-speed 1.55 μm infrared photodetector from self-powered graphene/Si heterojunction

Chunxiao Wang,Yuan Dong,Zhijian Lu,Shirong Chen,Kewei Xu,Yuanming Ma,Gaobin Xu,Xiaoyun Zhao,Yongqiang Yu

Sensors and Actuators A: Physical（2019）

引用 29|浏览4

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摘要

A self-powered Gr/Si heterojunction was successfully fabricated by using graphene film as active area. The device exhibits a responsivity approaching 39.5 mAW−1, together with a high-speed response speed up to 5.0 μs to communication wavelength of 1.55 μm.

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关键词

Graphene,Infrared photodetector,Schottky junction,Heterojunction

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