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

Sensors and Actuators A: Physical(2019)

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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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