Rigid triarylamine-based efficient DSSC sensitizers with high molar extinction coefficients

被引：77

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

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2013年 / 1卷 / 15期

关键词：

SOLAR-CELLS; ORGANIC-DYES; CONVERSION-EFFICIENCY; COUMARIN DYE; PERFORMANCE; THIOPHENE; UNIT; ELECTRODE; SOLVENT; DESIGN;

D O I：

10.1039/c3ta01657a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

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.

引用

页码：4763 / 4772

页数：10

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