Layer-by-layer graphene/TCNQ stacked films as conducting anodes for organic solar cells

Chang Lung Hsu; Cheng Te Lin; Jen Hsien Huang; Chih Wei Chu; Kung Hwa Wei; Lain Jong Li

doi:10.1021/nn301721q

Layer-by-layer graphene/TCNQ stacked films as conducting anodes for organic solar cells

Chang Lung Hsu, Cheng Te Lin, Jen Hsien Huang, Chih Wei Chu, Kung Hwa Wei^*, Lain Jong Li

^*Corresponding author for this work

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

197 Scopus citations

Abstract

Figure Persented: Large-area graphene grown by chemical vapor deposition (CVD) is a promising candidate for transparent conducting electrode applications in flexible optoelectronic devices such as light-emitting diodes or organic solar cells. However, the power conversion efficiency (PCE) of the polymer photovoltaic devices using a pristine CVD graphene anode is still not appealing due to its much lower conductivity than that of conventional indium tin oxide. We report a layer-by-layer molecular doping process on graphene for forming sandwiched graphene/tetracyanoquinodimethane (TCNQ)/graphene stacked films for polymer solar cell anodes, where the TCNQ molecules (as p-dopants) were securely embedded between two graphene layers. Poly(3-hexylthiophene)/phenyl-C61-butyric acid methyl ester (P3HT/PCBM) bulk heterojunction polymer solar cells based on these multilayered graphene/TCNQ anodes are fabricated and characterized. The P3HT/PCBM device with an anode structure composed of two TCNQ layers sandwiched by three CVD graphene layers shows optimum PCE (∼2.58%), which makes the proposed anode film quite attractive for next-generation flexible devices demanding high conductivity and transparency.

Original language	English (US)
Pages (from-to)	5031-5039
Number of pages	9
Journal	ACS Nano
Volume	6
Issue number	6
DOIs	https://doi.org/10.1021/nn301721q
State	Published - Jun 26 2012
Externally published	Yes

Keywords

TCNQ
doping
graphene anodes
layer-by-layer
organic photovoltaic cell
organic solar cell
transparent conducting electrodes

ASJC Scopus subject areas

General Materials Science
General Engineering
General Physics and Astronomy

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/nn301721q

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@article{3ab1e024f99c4e9089ac6a59e4e1fff0,

title = "Layer-by-layer graphene/TCNQ stacked films as conducting anodes for organic solar cells",

abstract = "Figure Persented: Large-area graphene grown by chemical vapor deposition (CVD) is a promising candidate for transparent conducting electrode applications in flexible optoelectronic devices such as light-emitting diodes or organic solar cells. However, the power conversion efficiency (PCE) of the polymer photovoltaic devices using a pristine CVD graphene anode is still not appealing due to its much lower conductivity than that of conventional indium tin oxide. We report a layer-by-layer molecular doping process on graphene for forming sandwiched graphene/tetracyanoquinodimethane (TCNQ)/graphene stacked films for polymer solar cell anodes, where the TCNQ molecules (as p-dopants) were securely embedded between two graphene layers. Poly(3-hexylthiophene)/phenyl-C61-butyric acid methyl ester (P3HT/PCBM) bulk heterojunction polymer solar cells based on these multilayered graphene/TCNQ anodes are fabricated and characterized. The P3HT/PCBM device with an anode structure composed of two TCNQ layers sandwiched by three CVD graphene layers shows optimum PCE (∼2.58%), which makes the proposed anode film quite attractive for next-generation flexible devices demanding high conductivity and transparency.",

keywords = "TCNQ, doping, graphene anodes, layer-by-layer, organic photovoltaic cell, organic solar cell, transparent conducting electrodes",

author = "Hsu, {Chang Lung} and Lin, {Cheng Te} and Huang, {Jen Hsien} and Chu, {Chih Wei} and Wei, {Kung Hwa} and Li, {Lain Jong}",

year = "2012",

month = jun,

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doi = "10.1021/nn301721q",

language = "English (US)",

volume = "6",

pages = "5031--5039",

journal = "ACS Nano",

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TY - JOUR

T1 - Layer-by-layer graphene/TCNQ stacked films as conducting anodes for organic solar cells

AU - Hsu, Chang Lung

AU - Lin, Cheng Te

AU - Huang, Jen Hsien

AU - Chu, Chih Wei

AU - Wei, Kung Hwa

AU - Li, Lain Jong

PY - 2012/6/26

Y1 - 2012/6/26

N2 - Figure Persented: Large-area graphene grown by chemical vapor deposition (CVD) is a promising candidate for transparent conducting electrode applications in flexible optoelectronic devices such as light-emitting diodes or organic solar cells. However, the power conversion efficiency (PCE) of the polymer photovoltaic devices using a pristine CVD graphene anode is still not appealing due to its much lower conductivity than that of conventional indium tin oxide. We report a layer-by-layer molecular doping process on graphene for forming sandwiched graphene/tetracyanoquinodimethane (TCNQ)/graphene stacked films for polymer solar cell anodes, where the TCNQ molecules (as p-dopants) were securely embedded between two graphene layers. Poly(3-hexylthiophene)/phenyl-C61-butyric acid methyl ester (P3HT/PCBM) bulk heterojunction polymer solar cells based on these multilayered graphene/TCNQ anodes are fabricated and characterized. The P3HT/PCBM device with an anode structure composed of two TCNQ layers sandwiched by three CVD graphene layers shows optimum PCE (∼2.58%), which makes the proposed anode film quite attractive for next-generation flexible devices demanding high conductivity and transparency.

AB - Figure Persented: Large-area graphene grown by chemical vapor deposition (CVD) is a promising candidate for transparent conducting electrode applications in flexible optoelectronic devices such as light-emitting diodes or organic solar cells. However, the power conversion efficiency (PCE) of the polymer photovoltaic devices using a pristine CVD graphene anode is still not appealing due to its much lower conductivity than that of conventional indium tin oxide. We report a layer-by-layer molecular doping process on graphene for forming sandwiched graphene/tetracyanoquinodimethane (TCNQ)/graphene stacked films for polymer solar cell anodes, where the TCNQ molecules (as p-dopants) were securely embedded between two graphene layers. Poly(3-hexylthiophene)/phenyl-C61-butyric acid methyl ester (P3HT/PCBM) bulk heterojunction polymer solar cells based on these multilayered graphene/TCNQ anodes are fabricated and characterized. The P3HT/PCBM device with an anode structure composed of two TCNQ layers sandwiched by three CVD graphene layers shows optimum PCE (∼2.58%), which makes the proposed anode film quite attractive for next-generation flexible devices demanding high conductivity and transparency.

KW - TCNQ

KW - doping

KW - graphene anodes

KW - layer-by-layer

KW - organic photovoltaic cell

KW - organic solar cell

KW - transparent conducting electrodes

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Layer-by-layer graphene/TCNQ stacked films as conducting anodes for organic solar cells

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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