Two Novel Carbazole Dyes for Dye-Sensitized Solar Cells with Open-Circuit Voltages up to 1 V Based on Br-/Br3- Electrolytes

被引：149

作者：

Teng, Chao ^{[1
]}

Yang, Xichuan ^{[1
]}

Yuan, Chunze ^{[1
]}

Li, Chaoyan ^{[1
]}

Chen, Ruikui ^{[1
]}

Tian, Haining ^{[1
]}

Li, Shifeng ^{[1
]}

Hagfeldt, Anders ^{[1
,2
]}

Sun, Licheng ^{[1
,2
]}

机构：

[1] Dalian Univ Technol, Joint Educ & Res Ctr Mol Devices, DUT KTH, State Key Lab Fine Chem, Dalian 116012, Peoples R China

[2] Royal Inst Technol KTH, Sch Chem Sci & Engn, Dept Chem, S-10044 Stockholm, Sweden

来源：

ORGANIC LETTERS | 2009年 / 11卷 / 23期

基金：

中国国家自然科学基金; 瑞典研究理事会;

关键词：

PERFORMANCE;

D O I：

10.1021/ol9022936

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Dye-sensitized solar cells (DSCs) based on two novel carbazole dyes (TC301 and TC306) and a Br-/Br-3(-) redox mediator in dried CH3CN solutions as electrolytes yielded a V-oc of 1.156 V and a eta value of 3.68% and a V-oc of 0.939 V and a eta value of 5.22% under simulated AM 1.5, respectively. The dyes TC301 and TC306 have more positive HOMO levels (1.59 and 1.38 V vs NHE) than the redox potential of Br-/Br-3(-)-based electrolytes, which have sufficient driving force to regenerate dyes. Under similar conditions with an I-/I-3(-) instead of a Br-/Br-3(-) redox mediator, DSCs sensitized by the dyes TC301 and TC306 produced a V-oc of 0.696 V and a eta value of 2.36% and a V-oc of 0.621 V and a eta value of 4.10%, respectively.

引用

页码：5542 / 5545

页数：4

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