Gate-dependent photoconductivity of single layer graphene grafted with metalloporphyrin molecules

M. S. Choi; D. J. Lee; S. J. Lee; D. H. Hwang; J. H. Lee; N. Aoki; Y. Ochiai; H. J. Kim; D. Whang; S. Kim; S. W. Hwang

doi:10.1063/1.4704921

Gate-dependent photoconductivity of single layer graphene grafted with metalloporphyrin molecules

M. S. Choi, D. J. Lee, S. J. Lee, D. H. Hwang, J. H. Lee, N. Aoki, Y. Ochiai, H. J. Kim, D. Whang, S. Kim, S. W. Hwang

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

5 Citations (Scopus)

Abstract

We present the gate-dependent photoconductivity measurements of single layer graphene ribbons grafted with zinc porphyrin molecules Zn(OEP). The Zn(OEP)-graphene showed a maximum 610 increase in its photo-sensitivity compared to the bare graphene samples. Furthermore, the measured photocurrent exhibited strong dependence on the gate bias, light power, and light wavelength. These dependences showed clear evidence of the excitation of the carriers in Zn(OEP) and their energy transfer to graphene.

Original language	English
Article number	163116
Journal	Applied Physics Letters
Volume	100
Issue number	16
DOIs	https://doi.org/10.1063/1.4704921
Publication status	Published - 2012 Apr 16

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2011-0000427).

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Gate-dependent photoconductivity of single layer graphene grafted with metalloporphyrin molecules",

abstract = "We present the gate-dependent photoconductivity measurements of single layer graphene ribbons grafted with zinc porphyrin molecules Zn(OEP). The Zn(OEP)-graphene showed a maximum 610 increase in its photo-sensitivity compared to the bare graphene samples. Furthermore, the measured photocurrent exhibited strong dependence on the gate bias, light power, and light wavelength. These dependences showed clear evidence of the excitation of the carriers in Zn(OEP) and their energy transfer to graphene.",

author = "Choi, {M. S.} and Lee, {D. J.} and Lee, {S. J.} and Hwang, {D. H.} and Lee, {J. H.} and N. Aoki and Y. Ochiai and Kim, {H. J.} and D. Whang and S. Kim and Hwang, {S. W.}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2011-0000427).",

year = "2012",

month = apr,

day = "16",

doi = "10.1063/1.4704921",

language = "English",

volume = "100",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Gate-dependent photoconductivity of single layer graphene grafted with metalloporphyrin molecules

AU - Choi, M. S.

AU - Lee, D. J.

AU - Lee, S. J.

AU - Hwang, D. H.

AU - Lee, J. H.

AU - Aoki, N.

AU - Ochiai, Y.

AU - Kim, H. J.

AU - Whang, D.

AU - Kim, S.

AU - Hwang, S. W.

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2011-0000427).

PY - 2012/4/16

Y1 - 2012/4/16

N2 - We present the gate-dependent photoconductivity measurements of single layer graphene ribbons grafted with zinc porphyrin molecules Zn(OEP). The Zn(OEP)-graphene showed a maximum 610 increase in its photo-sensitivity compared to the bare graphene samples. Furthermore, the measured photocurrent exhibited strong dependence on the gate bias, light power, and light wavelength. These dependences showed clear evidence of the excitation of the carriers in Zn(OEP) and their energy transfer to graphene.

AB - We present the gate-dependent photoconductivity measurements of single layer graphene ribbons grafted with zinc porphyrin molecules Zn(OEP). The Zn(OEP)-graphene showed a maximum 610 increase in its photo-sensitivity compared to the bare graphene samples. Furthermore, the measured photocurrent exhibited strong dependence on the gate bias, light power, and light wavelength. These dependences showed clear evidence of the excitation of the carriers in Zn(OEP) and their energy transfer to graphene.

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U2 - 10.1063/1.4704921

DO - 10.1063/1.4704921

M3 - Article

AN - SCOPUS:84859951528

SN - 0003-6951

VL - 100

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 16

M1 - 163116

ER -

Gate-dependent photoconductivity of single layer graphene grafted with metalloporphyrin molecules

Abstract

Bibliographical note

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