Polymer solar cells with enhanced open-circuit voltage and efficiency

  title={Polymer solar cells with enhanced open-circuit voltage and efficiency},
  author={Hsiang‐Yu Chen and Jianhui Hou and Shaoqing Zhang and Yongye Liang and Guanwen Yang and Yang Yang and Luping Yu and Yue Wu and Gang Li},
  journal={Nature Photonics},
Following the development of the bulk heterojunction1 structure, recent years have seen a dramatic improvement in the efficiency of polymer solar cells. Maximizing the open-circuit voltage in a low-bandgap polymer is one of the critical factors towards enabling high-efficiency solar cells. Study of the relation between open-circuit voltage and the energy levels of the donor/acceptor2 in bulk heterojunction polymer solar cells has stimulated interest in modifying the open-circuit voltage by… 

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