Conjugated polymers with 2,7-linked 3,6-difluorocarbazole as donor unit for high efficiency polymer solar cells
文献类型：期刊论文
| 作者 | Du, Chun1; Li, Weiwei1; Duan, Yan1; Li, Cuihong1; Dong, Huanli2; Zhu, Jia1; Hu, Wenping2; Bo, Zhishan1 |
| 刊名 | POLYMER CHEMISTRY
 |
| 出版日期 | 2013 |
| 卷号 | 4期号:9页码:2773-2782 |
| ISSN号 | 1759-9954 |
| DOI | 10.1039/c3py00177f |
| 英文摘要 | A novel donor-acceptor (D-A) copolymer PDFCDTBT with 3,6-difluoro substituted carbazole as the donor unit and dialkoxy substituted benzothiadiazole as the acceptor unit has been synthesized and used as a donor material for bulk heterojunction polymer solar cells (BHJ PSCs). PDFCDTBT possesses a band gap of 1.75 eV, a low-lying HOMO energy level of -5.23 eV, and a good thermal and electrochemical stability. In comparison with the corresponding non-fluoro substituted HXS-1, which has a HOMO energy level of 5.21 eV, a LUMO energy level of 3.35 eV, and an optical band gap of 1.86 eV, the incorporation of two fluoro atoms in the carbazole donor unit lowers the HOMO and the LUMO energy levels of the polymer, which results in simultaneously decreasing the band gap of the polymer and increasing the V-oc of polymer solar cells. The fluoro-containing polymer PDFCDTBT also shows strong intramolecular interactions and forms close packing in the solid state. Polymer solar cells based on PDFCDTBT and (6,6)-phenyl-C-71-butyric acid methyl ester (PC71BM) demonstrate a power conversion efficiency (PCE) of 4.8% with a V-oc of 0.91 V, a J(sc) of 9.5 mA cm(-2), and an FF of 0.55. In comparison with HXS-1, the better stability, higher V-oc, and narrower band gap indicate that PDFCDTBT is a very promising donor material for high efficiency polymer solar cells. |
| 语种 | 英语 |
| WOS记录号 | WOS:000316965200018 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/53635]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li, Cuihong |
| 作者单位 | 1.Beijing Normal Univ, Coll Chem, Beijing Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du, Chun,Li, Weiwei,Duan, Yan,et al. Conjugated polymers with 2,7-linked 3,6-difluorocarbazole as donor unit for high efficiency polymer solar cells[J]. POLYMER CHEMISTRY,2013,4(9):2773-2782. |
| APA | Du, Chun.,Li, Weiwei.,Duan, Yan.,Li, Cuihong.,Dong, Huanli.,...&Bo, Zhishan.(2013).Conjugated polymers with 2,7-linked 3,6-difluorocarbazole as donor unit for high efficiency polymer solar cells.POLYMER CHEMISTRY,4(9),2773-2782. |
| MLA | Du, Chun,et al."Conjugated polymers with 2,7-linked 3,6-difluorocarbazole as donor unit for high efficiency polymer solar cells".POLYMER CHEMISTRY 4.9(2013):2773-2782. |
入库方式： OAI收割
来源：化学研究所
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