4.7 Article

Facile synthesis of a 56 pi-electron 1,2-dihydromethano-[60]PCBM and its application for thermally stable polymer solar cells

Journal

CHEMICAL COMMUNICATIONS
Volume 47, Issue 36, Pages 10082-10084

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c1cc14446d

Keywords

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Funding

  1. National Science Foundation [DMR-0120967]
  2. Department of Energy [DE-FC3608GO18024/A000]
  3. AFOSR [FA9550-09-1-0426]
  4. Office of Naval Research [N00014-11-1-0300]
  5. National Research Foundation of Korea under the Ministry of Education, Science and Technology [R31-21410035]
  6. National Science Council of Taiwan [NSC98-2917-I-009-112]
  7. Japan Science and Technology Agency, JST
  8. Next-Generation World-Leading Researchers

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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.

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