Fabrication and Characterization of Phthalocyanine/C₆₀ Solar Cells with Inverted Structure

Kazumi Yoshida, Takeo Oku, Atsushi Suzuki, Tsuyoshi Akiyama, Yasuhiro Yamasaki

Department of Materials Science, The University of Shiga Prefecture, Hikone, Japan.
Orient Chemical Industries Co. Ltd., Department of New Business, Osaka, Japan.

DOI: 10.4236/aces.2012.24056                

Abstract

Photovoltaic and optical properties of fullerene/phthalocyanine heterojunction solar cells with normal and inverted structures were fabricated and investigated. Aluminum and gallium phthalocyanines were used for the n-type semiconductor. The solar cells with inverted structure had more stability compared to that with normal structure in the air. Nanostructures of the solar cells were investigated by transmission electron microscopy, and energy levels of the molecules were calculated and discussed.

Keywords

Organic Thin Film Solar Cell; Inverted Structure; Phthalocyanine; Fullerene; PCBM; TiO₂; Sol-Gel

Conflicts of Interest

The authors declare no conflicts of interest.

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