Effects of donor unit and pi-bridge on photovoltaic properties of D-A copolymers based on benzo[1,2-b:4,5-c']-dithiophene-4,8-dione acceptor unit
文献类型：期刊论文
| 作者 | Bin, Haijun1,2,3; Xiao, Lu3; Liu, Yong1,2; Shen, Ping1,2,3; Li, Yongfang3 |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
 |
| 出版日期 | 2014-07-15 |
| 卷号 | 52期号:14页码:1929-1940 |
| 关键词 | Pi-bridge D-pi-a Copolymers Photovoltaic Properties Polymer Solar Cells Benzo[1 2-b:4 5-c]-dithiophene-4 8-dione |
| ISSN号 | 0887-624X |
| DOI | 10.1002/pola.27209 |
| 英文摘要 | A series of donor--acceptor (D--A) conjugated copolymers (PBDT-AT, PDTS-AT, PBDT-TT, and PDTS-TT), based on benzo[1,2-b:4,5-c']dithiophene-4,8-dione (BDD) acceptor unit with benzodithiophene (BDT) or dithienosilole (DTS) as donor unit, alkylthiophene (AT) or thieno[3,2-b]thiophene (TT) as conjugated -bridge, were designed and synthesized for application as donor materials in polymer solar cells (PSCs). Effects of the donor unit and -bridge on the optical and electrochemical properties, hole mobilities, and photovoltaic performance of the D--A copolymers were investigated. PSCs with the polymers as donor and PC70BM as acceptor exhibit an initial power conversion efficiency (PCE) of 5.46% for PBDT-AT, 2.62% for PDTS-AT, 0.82% for PBDT-TT, and 2.38% for PDTS-TT. After methanol treatment, the PCE was increased up to 5.91%, 3.06%, 1.45%, and 2.45% for PBDT-AT, PDTS-AT, PBDT-TT, and PDTS-TT, respectively, with significantly increased FF. The effects of methanol treatment on the photovoltaic performance of the PSCs can be ascribed to the increased and balanced carrier transport and the formation of better nanoscaled interpenetrating network in the active layer. The results indicate that both donor unit and -bridge are crucial in designing a D--A copolymer for high-performance photovoltaic materials. (c) 2014 Wiley Periodicals, Inc. |
| 语种 | 英语 |
| WOS记录号 | WOS:000337682100002 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/51289]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Shen, Ping |
| 作者单位 | 1.Xiangtan Univ, Coll Chem, Xiangtan 411105, Peoples R China 2.Xiangtan Univ, Key Lab Environm Friendly Chem & Applicat, Minist Educ, Xiangtan 411105, Peoples R China 3.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bin, Haijun,Xiao, Lu,Liu, Yong,et al. Effects of donor unit and pi-bridge on photovoltaic properties of D-A copolymers based on benzo[1,2-b:4,5-c']-dithiophene-4,8-dione acceptor unit[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2014,52(14):1929-1940. |
| APA | Bin, Haijun,Xiao, Lu,Liu, Yong,Shen, Ping,&Li, Yongfang.(2014).Effects of donor unit and pi-bridge on photovoltaic properties of D-A copolymers based on benzo[1,2-b:4,5-c']-dithiophene-4,8-dione acceptor unit.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,52(14),1929-1940. |
| MLA | Bin, Haijun,et al."Effects of donor unit and pi-bridge on photovoltaic properties of D-A copolymers based on benzo[1,2-b:4,5-c']-dithiophene-4,8-dione acceptor unit".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 52.14(2014):1929-1940. |
入库方式： OAI收割
来源：化学研究所
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