4.8 Article

When Function Follows Form: Effects of Donor Copolymer Side Chains on Film Morphology and BHJ Solar Cell Performance

Journal

ADVANCED MATERIALS
Volume 22, Issue 48, Pages 5468-5472

Publisher

WILEY-BLACKWELL
DOI: 10.1002/adma.201002687

Keywords

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Funding

  1. U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001059]
  2. Division of Chemical Sciences, Office of Basic Energy Sciences, the U.S. Department of Energy [DE-AC02-06CH11357]
  3. National Science Foundation
  4. AFOSR
  5. Division Of Materials Research
  6. Direct For Mathematical & Physical Scien [1004195] Funding Source: National Science Foundation

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Detailed structural organization in organic films are investigated using grazing incidence X-ray scattering (GIXS) methods. The key structural features are revealed and the influence of specific side chain positions and shapes are characterized. A correlation between the fill factor (FF) of the corresponding device and the tightness of the polymer chain stacking inspires a new set of structural parameters for design of materials to optimize device efficiency. [GRAPHICS] .

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