Infrared photodetectors based on CVD-grown graphene and PbS quantum dots with ultrahigh responsivity

Zhenhua Sun; Zhike Liu; Jinhua Li; Guo An Tai; Shu Ping Lau; Feng Yan

doi:10.1002/adma.201202220

Infrared photodetectors based on CVD-grown graphene and PbS quantum dots with ultrahigh responsivity

Zhenhua Sun, Zhike Liu, Jinhua Li, Guo An Tai, Shu Ping Lau, Feng Yan

Research output: Journal article publication › Journal article › Academic research › peer-review

667 Citations (Scopus)

Abstract

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 107A/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.

Original language	English
Pages (from-to)	5878-5883
Number of pages	6
Journal	Advanced Materials
Volume	24
Issue number	43
DOIs	https://doi.org/10.1002/adma.201202220
Publication status	Published - 14 Nov 2012

Keywords

graphene
infrared sensors
lead sulfide
phototransistors
quantum dots

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

More information

10.1002/adma.201202220

Cite this

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abstract = "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 107A/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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author = "Zhenhua Sun and Zhike Liu and Jinhua Li and Tai, {Guo An} and Lau, {Shu Ping} and Feng Yan",

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AU - Liu, Zhike

AU - Li, Jinhua

AU - Tai, Guo An

AU - Lau, Shu Ping

AU - Yan, Feng

PY - 2012/11/14

Y1 - 2012/11/14

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KW - graphene

KW - infrared sensors

KW - lead sulfide

KW - phototransistors

KW - quantum dots

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Infrared photodetectors based on CVD-grown graphene and PbS quantum dots with ultrahigh responsivity

Abstract

Keywords

ASJC Scopus subject areas

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