Journal of the American Chemical Society 2009-11-04

Synthesis of a low band gap polymer and its application in highly efficient polymer solar cells.

Jianhui Hou, Hsiang-Yu Chen, Shaoqing Zhang, Ruby I Chen, Yang Yang, Yue Wu, Gang Li

Index: J. Am. Chem. Soc. 131(43) , 15586-7, (2009)

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Abstract

HOMO level of the PBDTTT-based polymer was successfully reduced by introducing an ketone 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.