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 journalArticle

95 Citations (Scopus)

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 languageEnglish (US)
Pages (from-to)2562-2566
Number of pages5
JournalJournal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
Volume26
Issue number6
DOIs
StatePublished - 2008

Fingerprint

Butyric acid
Heterojunctions
Solar cells
Esters
butyric acid
solar cells
Membranes
Nanoimprint lithography
Functional polymers
Nanopores
Plasma etching
heterojunctions
esters
polymers
Polymers
membranes
Masks
Alumina
plasma etching
Hydrogen

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

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, 2008, p. 2562-2566.

Research output: Contribution to journalArticle

Aryal, Mukti ; Buyukserin, Fatih ; Mielczarek, Kamil ; Zhao, Xiao Mei ; Gao, Jinming ; Zakhidov, Anvar ; Hu, Wenchuang. / Imprinted large-scale high density polymer nanopillars for organic solar cells. In: Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures. 2008 ; Vol. 26, No. 6. pp. 2562-2566.
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