4.8 Article

PS-b-P3HT Copolymers as P3HT/PCBM Interfacial Compatibilizers for High Efficiency Photovoltaics

Journal

ADVANCED MATERIALS
Volume 23, Issue 46, Pages 5529-+

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201103361

Keywords

diblock copolymer; P3HT; PCBM; compatibilizer; organic photovoltaics; neutron reflectivity

Funding

  1. Oak Ridge National Laboratory by the Offi ce of Basic Energy Sciences, U.S. Department of Energy
  2. University of Alabama
  3. DOE [5388]

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A conducting diblock copolymer of PS-b-P3HT was added to serve as a compatibilizer in a P3HT/PCBM blend, which improved the power-conversion efficiency from 3.3% to 4.1% due to the enhanced crystallinity, morphology, interface interaction, and depth profile of PCBM.

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