Side-chain engineering for efficient non-fullerene polymer solar cells based on a wide-bandgap polymer donor
文献类型：期刊论文
| 作者 | Fan, Qunping1; Su, Wenyan1; Guo, Xia1; Wang, Yan1; Chen, Juan1; Ye, Chennan1; Zhang, Maojie1; Li, Yongfang1,2 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2017-05-21 |
| 卷号 | 5期号:19页码:9204-9209 |
| 英文摘要 | In this work, a new wide-bandgap polymer, PSBZ, based on thienyl substituted benzodithiophene (BDTT) as the donor unit and difluorobenzotriazole (BTz-2F) as the acceptor unit was synthesized for photovoltaic applications. Compared to the analogous polymer J61 with linear dodecylthio side chains in the BDTT unit and a long 2-hexyldecyl side chain in BTz-2F, PSBZ possesses branched 2-butyloctyl side chains to increase steric hindrance of the BDTT unit and a short 2-butyloctyl side chain to decrease steric hindrance of the BTz-2F unit for more efficient charge separation and transport in the devices. As a result, PSBZ exhibited stronger pi-pi interaction and smaller stacking spacing leading to a higher extinction coefficient of 1.48 x 10(5) cm(-1) and a high hole mobility of 8.56 x 10(-3) cm(2) V-1 s(-1). Compared to the analogous polymer J61 with a power conversion efficiency (PCE) of 9.53% and a short-circuit current density (J(sc)) of 17.43 mA cm(-2), the PSBZ: ITIC-based polymer solar cells yielded a higher PCE of 10.5% with a higher J(sc) of 19.0 mA cm(-2). The results show that our design strategy is successful for improving photovoltaic performance by side chain engineering. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38391]  |
| 专题 | 化学研究所_有机固体实验室 |
| 作者单位 | 1.Soochow Univ, Coll Chem Chem Engn & Mat Sci, State & Local Joint Engn Lab Novel Funct Polymer, Lab Adv Optoelect Mat, Suzhou 215123, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Organ Solids, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Qunping,Su, Wenyan,Guo, Xia,et al. Side-chain engineering for efficient non-fullerene polymer solar cells based on a wide-bandgap polymer donor[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(19):9204-9209. |
| APA | Fan, Qunping.,Su, Wenyan.,Guo, Xia.,Wang, Yan.,Chen, Juan.,...&Li, Yongfang.(2017).Side-chain engineering for efficient non-fullerene polymer solar cells based on a wide-bandgap polymer donor.JOURNAL OF MATERIALS CHEMISTRY A,5(19),9204-9209. |
| MLA | Fan, Qunping,et al."Side-chain engineering for efficient non-fullerene polymer solar cells based on a wide-bandgap polymer donor".JOURNAL OF MATERIALS CHEMISTRY A 5.19(2017):9204-9209. |
入库方式： OAI收割
来源：化学研究所
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