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Zhenhua Sun, Zhike Liu, Jinhua Li, Guo-an Tai, Shu-Ping Lau and Feng Yan Infrared Photodetectors Based on CVD-Grown Graphene and PbS Quantum Dots with Ultrahigh Responsivity Advanced Materials 24

Version of Record online: 31 AUG 2012 | DOI: 10.1002/adma.201202220

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Infrared photodetectors based on single-layer CVD-grown graphene and PbS quantum dots, which are fabricated by solution processing, show ultrahigh responsivities of up to 107 A/W under infrared light illumination. The devices fabricated on flexible plastic substrates have excellent bending stability. The photoresponse is attributed to the field-effect doping in graphene films induced by negative charges generated in the quantum dots.

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