用于染料敏化太阳能电池的具有不对称茚并[1,2-b]噻吩或稠合二噻吩配体的新型高效钌敏化剂。

New efficient ruthenium sensitizers with unsymmetrical indeno[1,2-b]thiophene or a fused dithiophene ligand for dye-sensitized solar cells.

机构信息

Department of Material Chemistry, Korea University, Jochiwon, Chungnam 339-700, Korea.

出版信息

Inorg Chem. 2010 Sep 20;49(18):8351-7. doi: 10.1021/ic1009658.

PMID:20795700

Abstract

Two novel ruthenium sensitizers containing unsymmetrical indeno[1,2-b]thiophene or a fused dithiophene unit in the ancillary ligand have been designed and synthesized. The photovoltaic performance of JK-188 using an electrolyte consisting of 0.6 M 1,2-dimethyl-3-propylimidazolium iodide, 0.05 M I(2), 0.1 M LiI, 0.05 M guanidinium thiocyanate, and 0.5 M tert-butylpyridine in acetonitrile revealed a short-circuit photocurrent density of 18.60 mA/cm(2), an open-circuit voltage of 0.72 V, and a fill factor of 0.71, yielding an overall conversion efficiency of 9.54%. The cell exhibits a remarkable stability under 1000 h of light soaking at 60 °C using a quasi-solid-state electrolyte consisting of 5 wt % poly(vinylidenefluoride-co-hexafluoropropylene), 0.6 M 1-propyl-2,3-dimethylimidazolium iodide, 0.5 M N-methylbenzimidazole, and 0.1 M I(2) in 3-methoxypropionitrile, retaining 97% of the initial efficiency (7.38%).

摘要

已经设计并合成了两种含有非对称茚并[1,2-b]噻吩或稠合二噻吩单元的新型钌敏化剂。使用由 0.6 M 1,2-二甲基-3-丙基碘化咪唑、0.05 M I(2)、0.1 M LiI、0.05 M 硫氰酸胍和 0.5 M 叔丁基吡啶在乙腈中的电解质的 JK-188 的光伏性能显示出 18.60 mA/cm(2)的短路光电流密度、0.72 V 的开路电压和 0.71 的填充因子，总转换效率为 9.54%。该电池在使用由 5 wt%聚(偏二氟乙烯-co-六氟丙烯)、0.6 M 1-丙基-2,3-二甲基咪唑碘、0.5 M N-甲基苯并咪唑和 0.1 M I(2)在 3-甲氧基丙腈中的准固态电解质在 60°C 下进行 1000 小时的光浸泡下表现出显著的稳定性，保留了初始效率的 97%（7.38%）。