Thermally Stable, Efficient Polymer Solar Cells with Nanoscale Control of the Interpenetrating Network Morphology

  title={Thermally Stable, Efficient Polymer Solar Cells with Nanoscale Control of the Interpenetrating Network Morphology},
  author={Wei Ma and C. Y. Yang and Xue Gong and K. Lee and Alan J. Heeger},
  journal={Advanced Functional Materials},
  • W. MaC. Yang A. Heeger
  • Published 1 October 2005
  • Materials Science
  • Advanced Functional Materials
By applying the specific fabrication conditions summarized in the Experimental section and post‐production annealing at 150 °C, polymer solar cells with power‐conversion efficiency approaching 5 % are demonstrated. These devices exhibit remarkable thermal stability. We attribute the improved performance to changes in the bulk heterojunction material induced by thermal annealing. The improved nanoscale morphology, the increased crystallinity of the semiconducting polymer, and the improved… 

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