Conjugated or Broken: The Introduction of Isolation Spacer ahead of the Anchoring Moiety and the Improved Device Performance
文献类型：期刊论文
| 作者 | Chai, Zhaofei1; Wan, Sushu1; Zhong, Cheng1; Xu, Ting1; Fang, Manman1; Wang, Jinfeng1; Xie, Yujun1; Zhang, Yu1; Mei, Anyi2; Han, Hongwei2 |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2016-10-26 |
| 卷号 | 8期号:42页码:28652-28662 |
| 关键词 | dye-sensitized solar cells isolation spacers electronic coupling electron injection and recombination the structure-property relationship |
| 英文摘要 | Acceptors in traditional dyes are generally designed closed to TiO2 substrate to form a strong electronic coupling with each other (e.g., cyanoacrylic acid) to enhance the electron injection for the high performance of the corresponding solar cells. However, some newly developed dyes with chromophores or main acceptors isolated from anchoring groups also exhibit comparable or even higher performances. To investigate the relatively untouched electronic coupling effect in dye-sensitized solar cells, a relatively precise method is proposed in which the strength is adjusted gradually by changing isolation spacers between main acceptors and anchoring groups to partially control the electronic interaction. After an analysis of 3 different groups of 11 sensitizers, it is inferred that the electronic coupling should be kept at a suitable level to balance the electron injection and recombination. Based on a reference dye LI-81 possessing a cyanoacrylic acid as acceptor and anchoring group, both photocurrent and photovoltage synergistically improved after the properties of isolation spacers were changed through the adjustment of the length, steric hindrance, and push pull electronic characteristic. Accordingly, the rationally designed dye LI-87 with an isolation spacer of thiophene ethylene gives an efficiency of 8.54% and further improved to 9.07% in the presence of CDCA, showing a new way to develop efficient sensitizers. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/35151]  |
| 专题 | 化学研究所_有机固体实验室 |
| 作者单位 | 1.Wuhan Univ, Dept Chem, Hubei Key Lab Organ & Polymer Optoelect Mat, Wuhan 430072, Peoples R China 2.Huazhong Univ Sci & Technol, Michael Gratzel Ctr Mesoscop Solar Cells, Wuhan Natl Lab Optoelect, Wuhan 430072, Peoples R China 3.Chinese Acad Sci, Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chai, Zhaofei,Wan, Sushu,Zhong, Cheng,et al. Conjugated or Broken: The Introduction of Isolation Spacer ahead of the Anchoring Moiety and the Improved Device Performance[J]. ACS APPLIED MATERIALS & INTERFACES,2016,8(42):28652-28662. |
| APA | Chai, Zhaofei.,Wan, Sushu.,Zhong, Cheng.,Xu, Ting.,Fang, Manman.,...&Li, Zhen.(2016).Conjugated or Broken: The Introduction of Isolation Spacer ahead of the Anchoring Moiety and the Improved Device Performance.ACS APPLIED MATERIALS & INTERFACES,8(42),28652-28662. |
| MLA | Chai, Zhaofei,et al."Conjugated or Broken: The Introduction of Isolation Spacer ahead of the Anchoring Moiety and the Improved Device Performance".ACS APPLIED MATERIALS & INTERFACES 8.42(2016):28652-28662. |
入库方式： OAI收割
来源：化学研究所
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