title: Facile synthesis of a 56π-electron 1,2-dihydromethano-[60]PCBM and its application for thermally stable polymer solar cells.
abstract: A facile synthesis was employed to make a 56π-electron methano-PC(61)BM with a very small 1,2-dihydromethano (CH(2)) group. This new fullerene derivative possesses high electron mobility (0.014 cm(2) V(-1) s(-1)) and higher LUMO energy level (0.15 eV) than PC(61)BM. Bulk hetero-junction devices based on using poly(3-hexylthiophene) and methano-PC(61)BM as active layer exhibited better performance and thermal stability than those using the PC(61)BM analogue.
authors.affiliation: Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, USA.
authors.forename: Chang-Zhi
authors.initials: CZ
authors.lastname: Li
authors.forename: Shang-Chieh
authors.initials: SC
authors.lastname: Chien
authors.forename: Hin-Lap
authors.initials: HL
authors.lastname: Yip
authors.forename: Chu-Chen
authors.initials: CC
authors.lastname: Chueh
authors.forename: Fang-Chung
authors.initials: FC
authors.lastname: Chen
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Matsuo
authors.forename: Eiichi
authors.initials: E
authors.lastname: Nakamura
authors.forename: Alex K-Y
authors.initials: AK
authors.lastname: Jen