| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7699952 | Organic Electronics | 2018 | 29 Pages |
Abstract
Two new pH neutral Conjugated polyelectrolytes (CPEs), PCPDPhSO3K and PCPDffPhSO3K, based on 3,4-dithia-7H-cyclopenta[a]pentalene alternatively copolymerized with benzene and 1,4-difluorobenzene units respectively were designed and synthesized as hole-transporting layers (HTLs) for polymer solar cells (PSCs). The single-junction PSC based on PCPDffPhSO3K HTL showed a power conversion efficiency of 9.50%, which was much better than that of PEDOT:PSS-modified device (PCEâ¯=â¯8.60%), due to the improved conductivity and better energy alignment by incorporation of F atom into the backbone. These results demonstrated that CPEs developed as efficient HTLs can be realized by precise backbone engineering for highly performance PSCs.235
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Authors
Qian Xie, Jingwen Zhang, Haitao Xu, Xunfan Liao, Yiwang Chen, Yaowen Li, Lie Chen,