Chem. J. Chinese Universities ›› 2009, Vol. 30 ›› Issue (6): 1214.

• Articles • Previous Articles     Next Articles

Dye-sensitized Solar Cell Based on Tetradodecylammonium Chloride-type Low Molecular Mass Gelator Based Gel Electrolyte

HUO Zhi-Peng1, DAI Song-Yuan1*, ZHANG Chang-Neng1, LIU Wei-Qing1, FANG Xia-Qin1, CAI Mo-Lang1, GUO Lei1, WANG Kong-Jia1, JIANG Nian-Quan2, ZHENG Yi-Zhuang2   

  1. 1. Key Lab of Novel Thin Film Solar Cells, Chinese Academy of Sciences, Hefei 230031, China;
    2. College of Physics and Electric Information, Wenzhou University, Wenzhou 3250351, China
  • Received:2008-07-27 Online:2009-06-10 Published:2009-06-10
  • Contact: DAI Song-Yuan, E-mail: sydai@ipp.ac.cn
  • Supported by:

    国家重点基础研究发展规划项目(批准号: 2006CB202600)和安徽省科技攻关项目(批准号: 06012024A)资助.

Abstract:

Quasi-solid-state dye-sensitized solar cell(DSC) was fabricated using tetradodecylammonium chloride as a low molecular mass gelator to form gel electrolyte. The differential scanning calorimetry measurement shows the solution-to-gel transition temperature(TSG) of the gel is 74 ℃. It is also found that the gelation decreased the apparent diffusion coefficient(Dapp) values of triiodide and iodide ions in electrolyte. The influence of gelation on the charge recombination at the dyed TiO2 mesoscopic electrode/electrolyte interface was investigated by adopting electrochemical impedance spectroscopy(EIS) technology. The result showed that the gelation increased the dark reaction at the dyed TiO2 mesoscopic electrode/electrolyte interface. The result of the accelerated aging test showed that the gel electrolyte based DSC exhibited much better stability than the device based on the liquid electrolyte.

Key words: Low molecular mass gelator, Gel electrolyte, Stability, Dye-sensitized, Solar cell

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