Imprinted large-scale high density polymer nanopillars for organic solar cells

Mukti Aryal; Fatih Buyukserin; Kamil Mielczarek; Xiao Mei Zhao; Jinming Gao; Anvar Zakhidov; Wenchuang Hu

doi:10.1116/1.2981076

Imprinted large-scale high density polymer nanopillars for organic solar cells

Mukti Aryal, Fatih Buyukserin, Kamil Mielczarek, Xiao Mei Zhao, Jinming Gao, Anvar Zakhidov, Wenchuang Hu

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

96 Scopus citations

Abstract

Nanoimprint with a large-scale nanoporous Si mold is developed to fabricate high density periodic nanopillars (∼ 1010 cm2) in various functional polymers. A anodic alumina membrane is first obtained using electrochemical anodization. The membrane is used as a mask for a two-step plasma etching process to obtain a Si mold of 50-80 nm wide and 100-900 nm deep pores. The mold is used in nanoimprint lithography to fabricate ordered and high density polymer nanopillars and nanopores in SU-8, hydrogen silsesquixane, polymethylmethacrylate, poly(3-hexylthiophane) (P3HT), and phenyl-C61-butyric acid methyl ester (PCBM). Then, the imprinted P3HT nanopillars were used to make bulk heterojunction solar cells by depositing PCBM on top of the pillars. Imprinting provides a way to precisely control the interdigitized heterojunction morphology, leading to improved solar cell performance.

Original language	English (US)
Pages (from-to)	2562-2566
Number of pages	5
Journal	Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
Volume	26
Issue number	6
DOIs	https://doi.org/10.1116/1.2981076
State	Published - Dec 11 2008

ASJC Scopus subject areas

Condensed Matter Physics
Electrical and Electronic Engineering

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Imprinted large-scale high density polymer nanopillars for organic solar cells. / Aryal, Mukti; Buyukserin, Fatih; Mielczarek, Kamil; Zhao, Xiao Mei; Gao, Jinming; Zakhidov, Anvar; Hu, Wenchuang.

In: Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures, Vol. 26, No. 6, 11.12.2008, p. 2562-2566.

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

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abstract = "Nanoimprint with a large-scale nanoporous Si mold is developed to fabricate high density periodic nanopillars (∼ 1010 cm2) in various functional polymers. A anodic alumina membrane is first obtained using electrochemical anodization. The membrane is used as a mask for a two-step plasma etching process to obtain a Si mold of 50-80 nm wide and 100-900 nm deep pores. The mold is used in nanoimprint lithography to fabricate ordered and high density polymer nanopillars and nanopores in SU-8, hydrogen silsesquixane, polymethylmethacrylate, poly(3-hexylthiophane) (P3HT), and phenyl-C61-butyric acid methyl ester (PCBM). Then, the imprinted P3HT nanopillars were used to make bulk heterojunction solar cells by depositing PCBM on top of the pillars. Imprinting provides a way to precisely control the interdigitized heterojunction morphology, leading to improved solar cell performance.",

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AU - Buyukserin, Fatih

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AU - Gao, Jinming

AU - Zakhidov, Anvar

AU - Hu, Wenchuang

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AB - Nanoimprint with a large-scale nanoporous Si mold is developed to fabricate high density periodic nanopillars (∼ 1010 cm2) in various functional polymers. A anodic alumina membrane is first obtained using electrochemical anodization. The membrane is used as a mask for a two-step plasma etching process to obtain a Si mold of 50-80 nm wide and 100-900 nm deep pores. The mold is used in nanoimprint lithography to fabricate ordered and high density polymer nanopillars and nanopores in SU-8, hydrogen silsesquixane, polymethylmethacrylate, poly(3-hexylthiophane) (P3HT), and phenyl-C61-butyric acid methyl ester (PCBM). Then, the imprinted P3HT nanopillars were used to make bulk heterojunction solar cells by depositing PCBM on top of the pillars. Imprinting provides a way to precisely control the interdigitized heterojunction morphology, leading to improved solar cell performance.

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