Synthesis and photoelectric properties of an organic dye containing benzo[1,2-b:4,5-b′]dithiophene for dye-sensitized solar cells

被引：10
作者：
Gao, Yu-Rong [1 ]
Chu, Ling-Ling [2 ]
Guo, Wei [2 ]
Ma, Ting-Li [2 ]
机构：
[1] Dalian Res & Design Inst Chem Ind, Dalian 116023, Peoples R China
[2] Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China
来源：
CHINESE CHEMICAL LETTERS | 2013年 / 24卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Dyes; Solar cells; Benzodithiophene; Power conversion efficiency; CHROMOPHORES; EFFICIENCY;
D O I：
10.1016/j.cclet.2013.01.010
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A novel benzodithiophene-containing organic dye BDT was synthesized and characterized as a sensitizer for a nanocrystalline TiO2-based dye-sensitized solar cell. The BDT dye shows two major electronic absorptions. The absorption of the BDT dye covers a broad visible range from 300 nm to 550 nm. The benzodithiophene unit was used as a pi bridge with several advantages: (1) It facilitates the electron transfer from the donor to the acceptor; (2) A facile structural modification on the 4,8-positions in the benzodithiophene unit can be achieved; (3) Fusing benzene with two flanking thiophene units improves the thermal stability. Under simulated AM1.5G solar light (100 mW/cm(2)) illumination, the DSC based on BDT gives a power conversion efficiency of 1.78%. (C) 2013 Ting-Li Ma. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
引用
收藏
页码：149 / 152
页数：4
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