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Browsing by Author "Nakamura, Eiichi"

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    Facile synthesis of a 56 pi-electron 1,2-dihydromethano-[60]PCBM and its application for thermally stable polymer solar cells
    (2011)
    Li, Chang-Zhi
    ;
    Chien, Shang-Chieh
    ;
    Yip, Hin-Lap
    ;
    Chueh, Chu-Chen
    ;
    Chen, Fang-Chung
    A facile synthesis was employed to make a 56 pi-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.