Synthesis and photovoltaic properties of D-pi-A copolymers based on thieno[3,2-b]thiophene bridge unit
文献类型：期刊论文
| 作者 | Li, Zhaojun1,2; Huo, Lijun2; Guo, Xia2; Yong, Weina2; Zhang, Shaoqing1,2; Fan, Huili1 |
| 刊名 | POLYMER
 |
| 出版日期 | 2013-10-18 |
| 卷号 | 54期号:22页码:6150-6157 |
| 关键词 | Thienothiophene Conjugated Polymer Polymer Solar Cells |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2013.09.021 |
| 英文摘要 | Three D-pi-A copolymers containing thieno[3,2-b]thiophene (TT) bridge and BDT, carbazole, fluorene as D units and benzothiadiazole as A unit were synthesized and characterized. These copolymers of PBDT-tt-BT, PC-tt-BT and PF-tt-BT exhibited enough high thermal stabilites and good solubilites in chloroform and dichlorobenzene. Among the copolymers, with the increase of the electron-donating abilities of the D units from fluorene to carbazole further to BDT, the absorption spectra of PF-tt-BT shows blue shift and that of PBDT-tt-BT shows red shift comparing to that of PC-tt-BT in their solutions and films. Meanwhile, by electrochemical cyclic voltammetry measurements we found the HOMO levels vary in the same trench according to their electron-donating abilities. Under the illumination of AM 1.5G, 100 mW/cm(2), power conversion efficiency (PCE) of the PSCs based on these copolymers as donors and PC70M as acceptor were measured and PBDT-tt-BT shows a higher efficiency of 4.91% than PC-tt-ST and PF-tt-BT based devices mostly due to its higher hole mobility and broader absorption range. These results indicate that PBDT-tt-BT is a promising photovoltaic polymer donor material for efficient PSCs. (C) 2013 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000326140700012 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/42074]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Huo, Lijun |
| 作者单位 | 1.Univ Sci & Technol Beijing, Sch Chem & Biol, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Zhaojun,Huo, Lijun,Guo, Xia,et al. Synthesis and photovoltaic properties of D-pi-A copolymers based on thieno[3,2-b]thiophene bridge unit[J]. POLYMER,2013,54(22):6150-6157. |
| APA | Li, Zhaojun,Huo, Lijun,Guo, Xia,Yong, Weina,Zhang, Shaoqing,&Fan, Huili.(2013).Synthesis and photovoltaic properties of D-pi-A copolymers based on thieno[3,2-b]thiophene bridge unit.POLYMER,54(22),6150-6157. |
| MLA | Li, Zhaojun,et al."Synthesis and photovoltaic properties of D-pi-A copolymers based on thieno[3,2-b]thiophene bridge unit".POLYMER 54.22(2013):6150-6157. |
入库方式： OAI收割
来源：化学研究所
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