Citation: ZHANG Jun-Jie, WU Min, QIN Yan-Tao, CHEN Rui, JIANG Yin-Hua, SUN Yue-Ming, YANG Zhao-Hui. Study on Zn(II) Tetracarboxy Phthalocyanine Doped TiO2 Electrode Using Electrochemical Impedance Spectrum[J]. Acta Physico-Chimica Sinica, ;2008, 24(01): 79-84. doi: 10.3866/PKU.WHXB20080114
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Nanocrystalline TiO2 electrode as well as Zn(II) tetracarboxy phthalocyanine (ZnPcTc) doped mesoporous nanocrystalline TiO2 electrode were fabricated. Electrochemical impedance spectrum (EIS) measurement was used to investigate the electron transfer characters in electrodes and the interface characters. Arcs of EIS and corresponding electrode processes were discussed. Dynamic parameters of the electrodes were evaluated through proper calculation model. On the basis of experimental data, we confirmed that the doping of ZnPcTc into the pure mesoporous nanocrystalline TiO2 electrode could largely decrease the electron transfer resistance, and increase the electrode-electrolyte interface capacity which was benefit to develop the performance of dye-sensitized solar cell (DSSC).
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