CJCU

Chem. J. Chinese Universities ›› 2013, Vol. 34 ›› Issue (7): 1697.doi: 10.7503/cjcu20121097

• Physical Chemistry • Previous Articles     Next Articles

Properties and Application of Dual Function Pyridinium-based Ionic Liquid in Dye-sensitized Solar Cell

CAI Mo-Lang, PAN Xu, LIU Wei-Qing, HUO Zhi-Peng, CHEN Hai-Wei, ZHANG Chang-Neng, DAI Song-Yuan   

  1. Key Laboratory of Novel Thin Film Solar Cells, Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
  • Received:2012-12-05 Online:2013-07-10 Published:2013-06-21

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Abstract:

1-Ethyl-4-tert-butyl pyridinium iodide(TBEPI) was synthesized under solvent-free condition in the autoclave. The adsorption of TBEPI on the TiO2 surface was measured by the attenuated total reflection.Fourier thansform infrared spectroscopy(FTIR) analysis. The influence of TBEPI and 1,2-di-methyl-3-propylimidazolium iodide(DMPII) on redox behavior and the electron recombination in the dyed-TiO2/electrolyte interface were investigated by cyclic voltammetry(CV) and electrochemical impedance spectroscopy(EIS) in the dark. It is found that TBEPI can be used as the iodine resource and effectively forms the blocking layer to restrain the electron recombination. The performance of dye-sensitized solar cell is improved by modification of TBEPI as a result. This study will provide a perspective to the low cost and high efficiency of DSC by electrolyte optimization.

Key words: Dual function, Pyridinium-based ionic liquid, Dye sensitized solar cell

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