New triphenylamine organic dyes containing dithieno[3,2-b:2′,3′-d]pyrrole (DTP) units for iodine-free dye-sensitized solar cells

被引：68
|
作者：
Wang, Zhihui [1 ]
Liang, Mao [2 ]
Wang, Lina [2 ]
Hao, Yujie [2 ]
Wang, Chunbo [2 ]
Sun, Zhe [2 ]
Xue, Song [2 ]
机构：
[1] Tianjin Univ, Dept Chem, Tianjin 300072, Peoples R China
[2] Tianjin Univ Technol, Dept Appl Chem, Tianjin 300384, Peoples R China
来源：
CHEMICAL COMMUNICATIONS | 2013年 / 49卷 / 51期
基金：
中国国家自然科学基金;
关键词：
CHARGE-TRANSFER; BAND;
D O I：
10.1039/c3cc42121j
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Three dithieno[3,2-b:20,30-d] pyrrole (DTP) units with different hexyloxyphenyl (HOP) substituents have been developed for triphenylamine organic dyes (XS54-XS56). The introduction of the 4-HOP-DTP unit has resulted in a stronger light harvesting capacity, accounting for the observed photocurrent enhancement in the case of XS54, while the 2-HOP-DTP/2,4-HOP-DTP units induce a strikingly large photovoltage improvement in the cases of XS55 and XS56 due to their higher steric hindrance.
引用
收藏
页码：5748 / 5750
页数：3
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