文献类型：期刊文献

英文题名：Novel pyrrole-based dyes for dye-sensitized solar cells: From rod-shape to "H'' type

作者：Li, Qianqian[1];Shi, Jie[1];Li, Huiyang[1];Li, Shuang[1];Zhong, Cheng[1];Guo, Fulin[2,3];Peng, Ming[1];Hua, Jianli[2,3];Qin, Jingui[1];Li, Zhen[1]

机构：[1]Wuhan Univ, Dept Chem, Hubei Key Lab Organ & Polymer Optoelect Mat, Wuhan 430072, Peoples R China;[2]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2012

卷号：22

期号：14

起止页码：6689

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY

收录：;EI(收录号：20121314898700);WOS:【SCI-EXPANDED(收录号:WOS:000301459500027)】；

基金：We are grateful to the National Science Foundation of China (21002075), and the National Fundamental Key Research Program (2011CB932702) for financial support.

语种：英文

外文关键词：Aromatic compounds - Titanium dioxide - Dyes

摘要：A series of "H'' type dye sensitizers with pyrrole as the conjugated bridge were synthesized, in which two pieces of N-arylpyrrole-based organic dye moieties were linked together through various aromatic rings. Interestingly, the introduced aromatic isolation group not only gave a new possibility to modify the construction structure, but also controlled the topological structure of the resultant dyes in some degree. As a result, their performance could be adjusted, and the configuration of "H''-type could suppress the aggregations on the TiO2 surface. The performance of the DSCs based on these dyes as the sensitizers demonstrated that the structure of these dyes was beneficial to the devices, and the conversion efficiency of the solar cell based on dye LI-22 with carbazole as the isolation group was as high as 5.22%.