Gate-Activated Photoresponse in a Graphene p–n Junction
نویسندگان
چکیده
منابع مشابه
Gate-activated photoresponse in a graphene p-n junction.
We study photodetection in graphene near a local electrostatic gate, which enables active control of the potential landscape and carrier polarity. We find that a strong photoresponse only appears when and where a p-n junction is formed, allowing on-off control of photodetection. Photocurrents generated near p-n junctions do not require biasing and can be realized using submicrometer gates. Loca...
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ژورنال
عنوان ژورنال: Nano Letters
سال: 2011
ISSN: 1530-6984,1530-6992
DOI: 10.1021/nl2019068