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; Masanori Ozaki

doi:10.3390/ma3114939

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

Materials (Basel). 2010 Nov 15;3(11):4939-4949. doi: 10.3390/ma3114939.

Authors

Tetsuro Hori¹, Varutt Kittichungchit¹, Hiroki Moritou¹, Hitoshi Kubo¹, Akihiko Fujii², Masanori Ozaki¹

Affiliations

¹ Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan.
² Division of Electrical, Electronic and Information Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan. afujii@opal.eei.eng.osaka-u.ac.jp.

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