Understanding charge transfer in carbon nanotube-fullerene bulk heterojunctions

Maogang Gong; Tejas A. Shastry; Qiannan Cui; Ryan R. Kohlmeyer; Kyle A. Luck; Andrew Rowberg; Tobin J. Marks; Michael F. Durstock; Hui Zhao; Mark C. Hersam; Shenqiang Ren

doi:10.1021/acsami.5b01536

Understanding charge transfer in carbon nanotube-fullerene bulk heterojunctions

Maogang Gong, Tejas A. Shastry, Qiannan Cui, Ryan R. Kohlmeyer, Kyle A. Luck, Andrew Rowberg, Tobin J. Marks, Michael F. Durstock, Hui Zhao, Mark C. Hersam^*, Shenqiang Ren

^*Corresponding author for this work

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

21 Scopus citations

Abstract

Semiconducting single-walled carbon nanotube/fullerene bulk heterojunctions exhibit unique optoelectronic properties highly suitable for flexible, efficient, and robust photovoltaics and photodetectors. We investigate charge-transfer dynamics in inverted devices featuring a polyethylenimine-coated ZnO nanowire array infiltrated with these blends and find that trap-assisted recombination dominates transport within the blend and at the active layer/nanowire interface. We find that electrode modifiers suppress this recombination, leading to high performance.

Original language	English (US)
Pages (from-to)	7428-7435
Number of pages	8
Journal	ACS Applied Materials and Interfaces
Volume	7
Issue number	13
DOIs	https://doi.org/10.1021/acsami.5b01536
State	Published - Apr 8 2015

Keywords

bulk heterojunction
charge transfer
fullerenes
mechanism
nanocarbon

ASJC Scopus subject areas

Materials Science(all)

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10.1021/acsami.5b01536

Cite this

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title = "Understanding charge transfer in carbon nanotube-fullerene bulk heterojunctions",

abstract = "Semiconducting single-walled carbon nanotube/fullerene bulk heterojunctions exhibit unique optoelectronic properties highly suitable for flexible, efficient, and robust photovoltaics and photodetectors. We investigate charge-transfer dynamics in inverted devices featuring a polyethylenimine-coated ZnO nanowire array infiltrated with these blends and find that trap-assisted recombination dominates transport within the blend and at the active layer/nanowire interface. We find that electrode modifiers suppress this recombination, leading to high performance.",

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AU - Gong, Maogang

AU - Shastry, Tejas A.

AU - Cui, Qiannan

AU - Kohlmeyer, Ryan R.

AU - Luck, Kyle A.

AU - Rowberg, Andrew

AU - Marks, Tobin J.

AU - Durstock, Michael F.

AU - Zhao, Hui

AU - Hersam, Mark C.

AU - Ren, Shenqiang

PY - 2015/4/8

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AB - Semiconducting single-walled carbon nanotube/fullerene bulk heterojunctions exhibit unique optoelectronic properties highly suitable for flexible, efficient, and robust photovoltaics and photodetectors. We investigate charge-transfer dynamics in inverted devices featuring a polyethylenimine-coated ZnO nanowire array infiltrated with these blends and find that trap-assisted recombination dominates transport within the blend and at the active layer/nanowire interface. We find that electrode modifiers suppress this recombination, leading to high performance.

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KW - fullerenes

KW - mechanism

KW - nanocarbon

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Understanding charge transfer in carbon nanotube-fullerene bulk heterojunctions

Abstract

Keywords

ASJC Scopus subject areas

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