Defect-induced enhancement and quenching control of photocurrent in few-layer graphene photodetectors

Prarthana Gowda; Tushar Sakorikar; Siva K. Reddy; Darim B. Ferry; Abha Misra

doi:10.1021/am500865f

Defect-induced enhancement and quenching control of photocurrent in few-layer graphene photodetectors

Prarthana Gowda, Tushar Sakorikar, Siva K. Reddy, Darim B. Ferry, Abha Misra

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

A novel approach is presented for achieving an enhanced photoresponse in a few layer graphene (FLG) based photodetector that is realized by introducing defect sites in the FLG. Fabrication induced wrinkle formation in graphene presented a four-fold enhancement in the photocurrent when compared to unfold FLG. Interestingly, it was observed that the addition of few multiwalled carbon nanotubes to an FLG improves the photocurrent by two-fold along with a highly stable response as compared to FLG alone.

Original language	English
Pages (from-to)	7485-7490
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	6
Issue number	10
DOIs	https://doi.org/10.1021/am500865f
State	Published - 28 May 2014
Externally published	Yes

Keywords

graphene
multiwalled carbon nanotubes
photocurrent
photodetector
wrinkled graphene

ASJC Scopus subject areas

General Materials Science

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10.1021/am500865f

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title = "Defect-induced enhancement and quenching control of photocurrent in few-layer graphene photodetectors",

abstract = "A novel approach is presented for achieving an enhanced photoresponse in a few layer graphene (FLG) based photodetector that is realized by introducing defect sites in the FLG. Fabrication induced wrinkle formation in graphene presented a four-fold enhancement in the photocurrent when compared to unfold FLG. Interestingly, it was observed that the addition of few multiwalled carbon nanotubes to an FLG improves the photocurrent by two-fold along with a highly stable response as compared to FLG alone.",

keywords = "graphene, multiwalled carbon nanotubes, photocurrent, photodetector, wrinkled graphene",

author = "Prarthana Gowda and Tushar Sakorikar and Reddy, {Siva K.} and Ferry, {Darim B.} and Abha Misra",

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AU - Gowda, Prarthana

AU - Sakorikar, Tushar

AU - Reddy, Siva K.

AU - Ferry, Darim B.

AU - Misra, Abha

PY - 2014/5/28

Y1 - 2014/5/28

N2 - A novel approach is presented for achieving an enhanced photoresponse in a few layer graphene (FLG) based photodetector that is realized by introducing defect sites in the FLG. Fabrication induced wrinkle formation in graphene presented a four-fold enhancement in the photocurrent when compared to unfold FLG. Interestingly, it was observed that the addition of few multiwalled carbon nanotubes to an FLG improves the photocurrent by two-fold along with a highly stable response as compared to FLG alone.

AB - A novel approach is presented for achieving an enhanced photoresponse in a few layer graphene (FLG) based photodetector that is realized by introducing defect sites in the FLG. Fabrication induced wrinkle formation in graphene presented a four-fold enhancement in the photocurrent when compared to unfold FLG. Interestingly, it was observed that the addition of few multiwalled carbon nanotubes to an FLG improves the photocurrent by two-fold along with a highly stable response as compared to FLG alone.

KW - graphene

KW - multiwalled carbon nanotubes

KW - photocurrent

KW - photodetector

KW - wrinkled graphene

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JF - ACS Applied Materials and Interfaces

IS - 10

ER -

Defect-induced enhancement and quenching control of photocurrent in few-layer graphene photodetectors

Abstract

Keywords

ASJC Scopus subject areas

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