Thiophene-Fused Benzothiadiazole: A Strong Electron-Acceptor Unit to Build D-A Copolymer for Highly Efficient Polymer Solar Cells
文献类型：期刊论文
| 作者 | Zhou, Pengcheng1; Zhang, Zhi-Guo2; Li, Yongfang2; Chen, Xingguo1; Qin, Jingui1 |
| 刊名 | CHEMISTRY OF MATERIALS
 |
| 出版日期 | 2014-06-10 |
| 卷号 | 26期号:11页码:3495-3501 |
| ISSN号 | 0897-4756 |
| DOI | 10.1021/cm501052a |
| 英文摘要 | A novel strong electron-acceptor, thieno[2,3-f-]-2,1,3-benzothiadiazole-6-carboxylate (BTT), was first designed and synthesized. By introducing two thienyl groups into BTT and then copolymerizing with thienyl group substituted benzo[1,2-b:4,5-b']dithiophene (BDTT) unit, a low band gap D A copolymer (PBTT-TBDTT) was obtained. Compared with its polymer analogue (PBT-TBDTT) with benzothiadiazole (BT) as an acceptor, PBTT-TBDTT exhibits stronger intramolecular charge transfer. Thus, it shows much broader absorption covering almost the whole visible light region (in the range of 300-850 nm) and narrower optical band gap around 1.45 eV with a large IP (ionization potential) at 5.35 eV. The maximum efficiency of PBTT-TBDTT based device reaches 6.07% which is much higher than that of PBT-TBDTT (3.24%), indicating that BTT unit is a promising electron-acceptor moiety to construct low band gap D A copolymers for PSCs with high photovoltaic performances. |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000337199400022 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/52521]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, Zhi-Guo |
| 作者单位 | 1.Wuhan Univ, Key Lab Organ & Polymer Optoelect Mat, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Key Lab Organ Solids, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Pengcheng,Zhang, Zhi-Guo,Li, Yongfang,et al. Thiophene-Fused Benzothiadiazole: A Strong Electron-Acceptor Unit to Build D-A Copolymer for Highly Efficient Polymer Solar Cells[J]. CHEMISTRY OF MATERIALS,2014,26(11):3495-3501. |
| APA | Zhou, Pengcheng,Zhang, Zhi-Guo,Li, Yongfang,Chen, Xingguo,&Qin, Jingui.(2014).Thiophene-Fused Benzothiadiazole: A Strong Electron-Acceptor Unit to Build D-A Copolymer for Highly Efficient Polymer Solar Cells.CHEMISTRY OF MATERIALS,26(11),3495-3501. |
| MLA | Zhou, Pengcheng,et al."Thiophene-Fused Benzothiadiazole: A Strong Electron-Acceptor Unit to Build D-A Copolymer for Highly Efficient Polymer Solar Cells".CHEMISTRY OF MATERIALS 26.11(2014):3495-3501. |
入库方式： OAI收割
来源：化学研究所
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