Low Molecular Mass Organogelator Based Gel Electrolyte with Effective Charge Transport Property for Long-Term Stable Quasi-Solid-State Dye-Sensitized Solar Cells

被引：78

作者：

Huo, Zhipeng ^{[1
]}

Dai, Songyuan ^{[1
]}

Zhang, Changneng ^{[1
]}

Kong, Fantai ^{[1
]}

Fang, Xiaqin ^{[1
]}

Guo, Lei ^{[1
]}

Liu, Weiqing ^{[1
]}

Hu, Linhua ^{[1
]}

Pan, Xu ^{[1
]}

Wang, Kongjia ^{[1
]}

机构：

[1] Chinese Acad Sci, ASIPP, Inst Plasma Phys, Div Solar Energy Mat & Engn, Hefei 230031, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2008年 / 112卷 / 41期

关键词：

D O I：

10.1021/jp8052168

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：

Stable quasi-solid-state dye-sensitized solar cells (DSC) were fabricated using 12-hydroxystearic acid as a low molecular mass organogelator (LMOG) to form gel electrolyte. TEM image of the gel exhibited the self-assembled network constructed by the LMOG, which hindered flow and volatilization of the liquid. The formation of less-mobile polyiodide ions such as I-3(-) and I-5(-) confirmed by Raman spectroscopy increased the conductivity of the gel electrolytes by electronic conduction process, which should be rationalized by the Grotthuss-type electron exchange mechanism caused by rather packed polyiodide species in the electrolytes. The results of the accelerated aging tests showed that the gel electrolyte based dye-sensitized solar cell could retain over 97% of its initial photoelectric conversion efficiency value after successive heating at 60 degrees C for 1000 It and device degradation was also negligible after one sun light soaking with UV cutoff filter for 1000 h.

引用

页码：12927 / 12933

页数：7

共 53 条

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