title: Improved photovoltaic performance of P3HT:PCBM cells by addition of a low band-gap oligomer.
abstract: The introduction of a low band-gap oligomer, oligo(benzo[1,2,5]thiadiazole-alt-3,3'''-dihexylquaterthiophene) (BT4T) improved the performance of P3HT:PCBM bulk heterojunction organic photovoltaic cells due to improved UV-vis absorption and increased P3HT crystallinity.
authors.affiliation: Korea Institute of Industrial Technology (KITECH), Cheonan, Chungnam 331-825, Republic of Korea. ehlim@kitech.re.kr
authors.forename: Eunhee
authors.initials: E
authors.lastname: Lim
authors.forename: Sungkoo
authors.initials: S
authors.lastname: Lee
authors.forename: Kyeong K
authors.initials: KK
authors.lastname: Lee