P-doped bilayer graphene based photodetector with colloidal quantum dots absorber

Md Fazle Rabbe, Volodymyr Sheremet, David Pate,Vitaliy Avrutin,Umit Ozgur,Nibir K. Dhar

2023 IEEE PHOTONICS CONFERENCE, IPC（2023）

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摘要

Photodetector based on chemical free p-type doped graphene conduction channel and core-shell CdSe/ZnS type I quantum dots absorber was studied. Chanel conductivity modulation of 20% was observed under illumination. Responsivity of 0.72 A/W with 19ms response time and 1.4 center dot 10(8) Jones specific detectivity were achieved.

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关键词

graphene,phototransistor,CdSe/ZnS,colloidal quantum dots

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