4.8 Article

End-Capping Effect of a Narrow Bandgap Conjugated Polymer on Bulk Heterojunction Solar Cells

Journal

ADVANCED MATERIALS
Volume 23, Issue 21, Pages 2430-+

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201004629

Keywords

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Funding

  1. Office of Naval Research [N-00014-04-0411]
  2. Department of Energy, Center for Energy Efficient Materials [DE-DC0001009]
  3. Ministry of Education, Science and Technology of Korea [K20607000004]

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Device performances of BHJ solar cells based on poly[(4,4-didodecyldithieno[3,2-b:2', 3'-d] silole)-2,6-diyl-alt-(2,1,3-benzoxadiazole)-4,7-diyl] and PC71BM improve by capping the chain ends with thiophene fragments. This structural modification yields materials that are more thermally robust and that can be used in devices with thicker films important considerations for enabling the mass production of plastic solar cells.

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