Ruthenium Sensitizer with Thienothiophene-Linked Carbazole Antennas in Conjunction with Liquid Electrolytes for Dye-Sensitized Solar Cells

被引：46

作者：

Chen, Chia-Yuan ^{[2
]}

Pootrakulchote, Nuttapol ^{[1
]}

Hung, Tzu-Hao ^{[2
]}

Tan, Chun-Jui ^{[2
]}

Tsai, Hui-Hsu ^{[2
]}

Zakeeruddin, Shaik M. ^{[1
]}

Wu, Chun-Guey ^{[2
]}

Graetzel, Michael ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland

[2] Natl Cent Univ, Dept Chem, Jhongli 32001, Taiwan

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2011年 / 115卷 / 40期

基金：

瑞士国家科学基金会;

关键词：

ORGANIC-DYES; EFFICIENCY; RECOMBINATION; ABSORPTIVITY; PERFORMANCE; COMPLEXES; ENHANCE; FILM; TRANSPORT; DENSITY;

D O I：

10.1021/jp206312g

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：

A new heteroleptic ruthenium complex, coded CYC-B12, incorporating an antenna ligand composed of sequential connections of a thienothiophene conjugated bridge and carbazole hole-transport moiety was prepared. This new sensitizer exhibits a lower energy MLCT band centered at 555 nm with a high molar absorption coefficient of 2.24 x 10(4) M-1 cm(-1). The device sensitized by CYC-B12 in conjunction with a volatile electrolyte shows a high photovoltaic efficiency of 9.4% under an illumination of standard global AM 1.5G sunlight. With a low-volatile electrolyte, the cell based on this new sensitizer shows not only a good conversion efficiency of 8.2% but also excellent durability (>96%) under light soaking at 60 degrees C in a simulated sunlight for 1000 h. The difference in the electron recombination kinetics caused by various liquid electrolytes or aging process is also investigated by employing the transient photoelectrical measurements.

引用

页码：20043 / 20050

页数：8

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