Excellent optoelectrical properties of graphene oxide thin films deposited on a flexible substrate by Langmuir-Blodgett assembly

Xiuyi Lin; Jingjing Jia; Nariman Yousefi; Xi Shen; Jang Kyo Kim

doi:10.1039/c3tc31497a

Excellent optoelectrical properties of graphene oxide thin films deposited on a flexible substrate by Langmuir-Blodgett assembly

Xiuyi Lin, Jingjing Jia, Nariman Yousefi, Xi Shen, Jang Kyo Kim

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

61 Citations (Scopus)

Abstract

Transparent conductive films (TCFs) composed of ultra-large graphene oxide (GO) sheets are produced on a flexible poly(ethylene terephthalate) (PET) substrate using the Langmuir-Blodgett (L-B) assembly. The GO films are reduced using hydriodic (HI) acid followed by chemical doping treatments. The TCFs deliver excellent optoelectrical properties with a remarkable sheet resistance 1100 Ω sq^-1 at a transmittance of 91%, which is considered among the best. The plasma-treated PET substrate plays an important role in determining the chemistry and surface morphology of GO films: a combination of strong covalent bonds and π-π interactions between the GO and PET is revealed. The L-B assembly technique is suitable for the fabrication of flexible TCFs of optoelectronic devices on a large scale.

Original language	English
Pages (from-to)	6869-6877
Number of pages	9
Journal	Journal of Materials Chemistry C
Volume	1
Issue number	41
DOIs	https://doi.org/10.1039/c3tc31497a
Publication status	Published - 7 Nov 2013
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Materials Chemistry

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10.1039/c3tc31497a

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abstract = "Transparent conductive films (TCFs) composed of ultra-large graphene oxide (GO) sheets are produced on a flexible poly(ethylene terephthalate) (PET) substrate using the Langmuir-Blodgett (L-B) assembly. The GO films are reduced using hydriodic (HI) acid followed by chemical doping treatments. The TCFs deliver excellent optoelectrical properties with a remarkable sheet resistance 1100 Ω sq-1 at a transmittance of 91%, which is considered among the best. The plasma-treated PET substrate plays an important role in determining the chemistry and surface morphology of GO films: a combination of strong covalent bonds and π-π interactions between the GO and PET is revealed. The L-B assembly technique is suitable for the fabrication of flexible TCFs of optoelectronic devices on a large scale.",

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AU - Lin, Xiuyi

AU - Jia, Jingjing

AU - Yousefi, Nariman

AU - Shen, Xi

AU - Kim, Jang Kyo

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AB - Transparent conductive films (TCFs) composed of ultra-large graphene oxide (GO) sheets are produced on a flexible poly(ethylene terephthalate) (PET) substrate using the Langmuir-Blodgett (L-B) assembly. The GO films are reduced using hydriodic (HI) acid followed by chemical doping treatments. The TCFs deliver excellent optoelectrical properties with a remarkable sheet resistance 1100 Ω sq-1 at a transmittance of 91%, which is considered among the best. The plasma-treated PET substrate plays an important role in determining the chemistry and surface morphology of GO films: a combination of strong covalent bonds and π-π interactions between the GO and PET is revealed. The L-B assembly technique is suitable for the fabrication of flexible TCFs of optoelectronic devices on a large scale.

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Excellent optoelectrical properties of graphene oxide thin films deposited on a flexible substrate by Langmuir-Blodgett assembly

Abstract

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