4.8 Article

Synthesis of a Low Band Gap Polymer and Its Application in Highly Efficient Polymer Solar Cells

Journal

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 131, Issue 43, Pages 15586-+

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ja9064975

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HOMO level of the PBDTTT-based polymer was successfully reduced by introducing an keton group in place of the ester group. The average PCE of the PBDTTT-based devices reached 6.3% with a champion PCE result of 6.58%. Due to its highly efficient photovoltaic performance and more feasible synthesis approach, PBDTTT-C has the potential to be successfully applied in the large-scale manufacturing of polymer solar cells.

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