Solution-processable graphene oxide as an efficient hole transport layer in polymer solar cells

Shao Sian Li; Kun Hua Tu; Chih Cheng Lin; Chun Wei Chen; Manish Chhowalla

doi:10.1021/nn100551j

Solution-processable graphene oxide as an efficient hole transport layer in polymer solar cells

Shao Sian Li, Kun Hua Tu, Chih Cheng Lin, Chun Wei Chen, Manish Chhowalla

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

761 Citations (Scopus)

Abstract

The utilization of graphene oxide (GO) thin films as the hole transport and electron blocking layer in organic photovoltaics (OPVs) is demonstrated. The incorporation of GO deposited from neutral solutions between the photoactive poly(3-hexylthiophene) (P3HT):phenyl-C61-butyric acid methyl ester (PCBM) layer and the transparent and conducting indium tin oxide (ITO) leads to a decrease in recombination of electrons and holes and leakage currents. This results in a dramatic increase in the OPV efficiencies to values that are comparable to devices fabricated with PEDOT:PSS as the hole transport layer. Our results indicate that GO could be a simple solution-processable alternative to PEDOT:PSS as the effective hole transport and electron blocking layer in OPV and light-emitting diode devices.

Original language	English
Pages (from-to)	3169-3174
Number of pages	6
Journal	ACS Nano
Volume	4
Issue number	6
DOIs	https://doi.org/10.1021/nn100551j
Publication status	Published - Jun 22 2010
Externally published	Yes

Keywords

Graphene oxide
Hole transport layers
Organic electronics
Organic photovoltaics

ASJC Scopus subject areas

General Materials Science
General Engineering
General Physics and Astronomy

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10.1021/nn100551j

Cite this

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title = "Solution-processable graphene oxide as an efficient hole transport layer in polymer solar cells",

abstract = "The utilization of graphene oxide (GO) thin films as the hole transport and electron blocking layer in organic photovoltaics (OPVs) is demonstrated. The incorporation of GO deposited from neutral solutions between the photoactive poly(3-hexylthiophene) (P3HT):phenyl-C61-butyric acid methyl ester (PCBM) layer and the transparent and conducting indium tin oxide (ITO) leads to a decrease in recombination of electrons and holes and leakage currents. This results in a dramatic increase in the OPV efficiencies to values that are comparable to devices fabricated with PEDOT:PSS as the hole transport layer. Our results indicate that GO could be a simple solution-processable alternative to PEDOT:PSS as the effective hole transport and electron blocking layer in OPV and light-emitting diode devices.",

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T1 - Solution-processable graphene oxide as an efficient hole transport layer in polymer solar cells

AU - Li, Shao Sian

AU - Tu, Kun Hua

AU - Lin, Chih Cheng

AU - Chen, Chun Wei

AU - Chhowalla, Manish

PY - 2010/6/22

Y1 - 2010/6/22

N2 - The utilization of graphene oxide (GO) thin films as the hole transport and electron blocking layer in organic photovoltaics (OPVs) is demonstrated. The incorporation of GO deposited from neutral solutions between the photoactive poly(3-hexylthiophene) (P3HT):phenyl-C61-butyric acid methyl ester (PCBM) layer and the transparent and conducting indium tin oxide (ITO) leads to a decrease in recombination of electrons and holes and leakage currents. This results in a dramatic increase in the OPV efficiencies to values that are comparable to devices fabricated with PEDOT:PSS as the hole transport layer. Our results indicate that GO could be a simple solution-processable alternative to PEDOT:PSS as the effective hole transport and electron blocking layer in OPV and light-emitting diode devices.

AB - The utilization of graphene oxide (GO) thin films as the hole transport and electron blocking layer in organic photovoltaics (OPVs) is demonstrated. The incorporation of GO deposited from neutral solutions between the photoactive poly(3-hexylthiophene) (P3HT):phenyl-C61-butyric acid methyl ester (PCBM) layer and the transparent and conducting indium tin oxide (ITO) leads to a decrease in recombination of electrons and holes and leakage currents. This results in a dramatic increase in the OPV efficiencies to values that are comparable to devices fabricated with PEDOT:PSS as the hole transport layer. Our results indicate that GO could be a simple solution-processable alternative to PEDOT:PSS as the effective hole transport and electron blocking layer in OPV and light-emitting diode devices.

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KW - Hole transport layers

KW - Organic electronics

KW - Organic photovoltaics

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Solution-processable graphene oxide as an efficient hole transport layer in polymer solar cells

Abstract

Keywords

ASJC Scopus subject areas

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