Dependence of Excited-State Properties of a Low-Bandgap Photovoltaic Copolymer on Side-Chain Substitution and Solvent
文献类型：期刊论文
| 作者 | Zhao, Ning-Jiu1; Zhang, Mao-Jie2; Liang, Ran1; Fu, Li-Min1; Zhang, Wei1; Ai, Xi-Cheng1; Hou, Jian-Hui2; Zhang, Jian-Ping1 |
| 刊名 | CHEMSUSCHEM
 |
| 出版日期 | 2016-07-07 |
| 卷号 | 9期号:13页码:1623-1633 |
| 关键词 | electron transfer polymers solar cells structure-activity relationships substituent effects |
| 英文摘要 | The excited-state properties and chain conformations of a new low-bandgap copolymer based on benzo[1,2-b:4,5-b]dithiophene (BDT) and thieno[3,4-b]thiophene with meta-alkoxyphenyl-substituted side chains in solution were investigated comprehensively. Time-resolved spectroscopy suggested that the excited-state properties were sensitive to the conformations of the copolymer in solution. In addition, excited-state dynamics analyses revealed the photogeneration of triplet excited states by intersystem crossing (ISC) at a rate constant of approximate to 0.4x10(9)s(-1) as a result of direct meta-alkoxyphenyl connection to the donor unit BDT irrespective to the macromolecular conformations. According to El-Sayed's rule, the fast ISC herein is correlated with the change of orbital types between singlet and triplet excited states as also shown by quantum chemical calculations. Our studies may shed light on the structure-property relationships of photovoltaic materials. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/35210]  |
| 专题 | 化学研究所_高分子物理与化学实验室 |
| 作者单位 | 1.Renmin Univ China, Dept Chem, Beijing 100872, 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 | Zhao, Ning-Jiu,Zhang, Mao-Jie,Liang, Ran,et al. Dependence of Excited-State Properties of a Low-Bandgap Photovoltaic Copolymer on Side-Chain Substitution and Solvent[J]. CHEMSUSCHEM,2016,9(13):1623-1633. |
| APA | Zhao, Ning-Jiu.,Zhang, Mao-Jie.,Liang, Ran.,Fu, Li-Min.,Zhang, Wei.,...&Zhang, Jian-Ping.(2016).Dependence of Excited-State Properties of a Low-Bandgap Photovoltaic Copolymer on Side-Chain Substitution and Solvent.CHEMSUSCHEM,9(13),1623-1633. |
| MLA | Zhao, Ning-Jiu,et al."Dependence of Excited-State Properties of a Low-Bandgap Photovoltaic Copolymer on Side-Chain Substitution and Solvent".CHEMSUSCHEM 9.13(2016):1623-1633. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。