Carbazole Dyes with Ether Groups for Dye-Sensitized Solar Cells: Effect of Negative Charges in Dye Molecules on Electron Lifetime

被引：5
作者：
Uemura, Yu [1 ,2 ]
Mori, Shogo [3 ]
Hara, Kohjiro [2 ]
Koumura, Nagatoshi [1 ,2 ]
机构：
[1] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3058577, Japan
[2] Natl Inst Adv Ind Sci & Technol, Res Ctr Photovolta Technol, Tsukuba, Ibaraki 3058565, Japan
[3] Shinshu Univ, Div Chem & Mat, Ueda, Nagano 3868567, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2012年 / 51卷 / 10期
关键词：
CONVERSION EFFICIENCY; ORGANIC-DYES; TIO2; FILMS; PERFORMANCE; OLIGOTHIOPHENES; PHOTOVOLTAICS;
D O I：
10.1143/JJAP.51.10NE14
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In order to examine the effect of partial charges of dye molecules on charge recombination in dye-sensitized solar cells, we synthesized carbazole-based dyes with ether chains on a pi-conjugated oligothiophene linker. The addition of negatively charged oxygen atoms on ether chains resulted in a decrease of electron lifetime, suggesting that partial charges on the dye increased I-3(-) concentration at the surface of TiO2. (C) 2012 The Japan Society of Applied Physics
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页数：8
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