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Bulk-Heterojunction Organic Solar Cells Based on Phenylene-Thiophene Oligomer and Phenyl-C61-Butyric-Acid Methyl Ester
Shunjiro FUJII Takanori OKUKAWA Zongfan DUAN Yuichiro YANAGI Masaya OHZEKI Tatsuki YANAGIDATE Yuki ARAI Gaoyang ZHAO Yasushiro NISHIOKA Hiromichi KATAURA
IEICE TRANSACTIONS on Electronics
Publication Date: 2014/05/01
Online ISSN: 1745-1353
Type of Manuscript: BRIEF PAPER
organic solar cells, oligomer, oligomeric phenylene-thiophene derivative, P3HT, PCBM,
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We characterized bulk-heterojunction (BHJ) solar cells using a new phenylene-thiophene oligomer, 3,7-bis[5-(4-n-hexylphenyl)-2-thienyl]dibenzothiophene-5,5-dioxide (37HPTDBTSO), and phenyl-C61-butyric-acid methyl ester (PCBM). Their photovoltaic properties including current-voltage characteristics and spectrum response were investigated. It was found that 37HPTDBTSO is appraised to be valuable electron donor. The characteristics of BHJ solar cells using mixed two donors of 37HPTDBTSO and a polymer of poly(3-hexylthiophene) (P3HT) were further investigated. OSC using the blend film of mixed donars and PCBM achieved a power conversion efficiency of 0.89%.