High-Efficiency Bulk Heterojunction Organic Thin-Film Solar Cells

• Published in: Journal of The Society of Photographic Science and Technology of Japan Vol. 69; no. 5; pp. 327 - 331
• Main Authors: SAITO, Kazuhiro, HARA, Kohjiro, YAMANARI, Toshihiro, TAIMA, Tetsuya
• Format: Journal Article
• Language: Japanese
• Published: THE SOCIETY OF PHOTOGRAPHY AND IMAGING OF JAPAN 2006; 社団法人 日本写真学会
• Subjects: bulk heterojunction; carrier transport network; organic thin-film solar cell; キャリア輸送ネットワーク; バルクヘテロ接合; 有機薄膜太陽電池
• ISSN: 0369-5662; 1884-5932
• DOI: 10.11454/photogrst1964.69.327

Organic thin-film solar cells have attracted attention as a novel low-cost solar cell. The organic semiconductor based cells have been studied for more than 30years; however, their power conversion efficiencies have not sufficient to date. In recent years, based on the features of organic materials, a unique concept, “bulk heterojunction”, was proposed and high performance cells have been developed since then. In this article, we review the recent trends to develop highly efficient cells, especally the polymer: fullerene bulk heterojunction solar cells based on wet process, and future prospects of them.