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  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E97-C   No.5   pp.405-408
Publication Date: 2014/05/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E97.C.405
Type of Manuscript: BRIEF PAPER
Category: 
Keyword: 
organic solar cells,  oligomer,  oligomeric phenylene-thiophene derivative,  P3HT,  PCBM,  

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Summary: 
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%.