文献类型：期刊文献

英文题名：Rigid triarylamine-based efficient DSSC sensitizers with high molar extinction coefficients

作者：Cai, Shengyun[1,2];Hu, Xiaohao[1,2];Zhang, Zhiyun[1,2];Su, Jianhua[1,2];Li, Xin[1,2];Islam, Ashraful[3];Han, Liyuan[3];Tian, He[1,2]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China;[3]Natl Inst Mat Sci, Photovolta Mat Unit, Tsukuba, Ibaraki, Japan

年份：2013

卷号：1

期号：15

起止页码：4763

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY A

收录：;EI(收录号：20131816289393);WOS:【SCI-EXPANDED(收录号:WOS:000316282800020)】；

基金：This work was supported by NSFC/China (21190033, 91233207) & National Basic Research 973 Program.

语种：英文

外文关键词：Dyes - Solar light - Solar power generation

摘要：Five metal-free organic dyes (DIA1-DIA5) based on rigid triarylamine donors have been synthesized and their photophysical/electrochemical properties, theoretical calculations and dye-sensitized solar cell (DSSC) performances have been investigated. All the five dyes showed a high molar extinction coefficient (5.0 x 10(4)-8.1 x 10(4) M-1 cm(-1)). Electrochemical measurement data indicates that the HOMO and LUMO energy levels can be conveniently tuned by alternating the pi-spacer moiety. Among the five dyes, DIA3 showed the best photovoltaic performance, which was greatly increased to 8.09% by an optimized condition under standard global AM 1.5 solar light condition. The results show that the dyes based on this rigid donor are promising candidates for the improvement of the performance of DSSCs.