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• Hori, T
• Kittichungchit, V
• Moritou, H
• Kubo, H
• Fujii, A
• Ozaki, M
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• Hori, T
• Kittichungchit, V
• Moritou, H
• Kubo, H
• Fujii, A
• Ozaki, M
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• Hori, T
• Kittichungchit, V
• Moritou, H
• Kubo, H
• Fujii, A
• Ozaki, M

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Materials 2010, 3(11), 4939-4949; doi:10.3390/ma3114939

Article

Solvent Vapor Treatment Effects on Poly(3-hexylthiophene) Thin Films and its Application for Interpenetrating Heterojunction Organic Solar Cells

Tetsuro Hori, Varutt Kittichungchit, Hiroki Moritou, Hitoshi Kubo, Akihiko Fujii*  and Masanori Ozaki

Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan

* Author to whom correspondence should be addressed.

Received: 22 October 2010; in revised form: 8 November 2010 / Accepted: 12 November 2010 / Published: 15 November 2010

(This article belongs to the Special Issue Solar Energy Materials)

Download PDF Full-Text [602 KB, uploaded 15 November 2010 16:43 CET]

Abstract: The solvent vapor treatment (SVT) for poly(3-hexylthiophene) (PAT6) films and its application to interpenetrating heterojunction organic solar cells have been studied. It was found that SVT could improve the crystallinity and electrical characteristics of the PAT6 films. We fabricated organic solar cells with an interpenetrating structure of PAT6 and fullerenes utilizing the SVT process, and discuss the improved performance of the solar cells by taking the film crystallinity, optical properties, and morphology into consideration.

Keywords: solvent vapor treatment; interpenetrating heterojunction; organic solar cells; poly(3-hexylthiophene); fullerene

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