An Investigation on the Photovoltaic Properties of Dye-Sensitized Solar Cells Based on Fe3O4–TiO2 Composited Photoelectrode

IEEE Journal of the Electron Devices Society

卷:5

Wan-Yu Hsu¹  Chia-Ming Chu¹  Chang-Chia Lu¹  Yi-Hung Liao²  Yu-Hsun Nien³  Jung-Chuan Chou⁴  Chih-Hsien Lai⁴  Yu-Jen Lin⁴  Pei-Hong You⁴ 

[1] Department of Electronic Engineering, National Yunlin University of Science and Technology, Douliou, Taiwan;

[2] Department of Information Management, TransWorld University, Yunlin, Taiwan;

[3] Graduate School of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Douliou, Taiwan;

[4] Graduate School of Electronic Engineering, National Yunlin University of Science and Technology, Douliou, Taiwan;

关键词: Titanium dioxide;    dye-sensitized solar cell;    Fe₃O₄;    electrochemical impedance spectroscopy;    photovoltaic conversion efficiency;   

DOI  :  10.1109/JEDS.2016.2618839

来源: DOAJ

【 摘 要 】

In this paper, Fe₃O₄-titanium dioxide (TiO₂) composited photoelectrode was prepared by spin coating method. The effects of incorporating Fe₃O₄ into the TiO₂ photoelectrode of dye-sensitized solar cell (DSSC) were investigated in detail by atomic force microscope, solar simulator, X-ray diffraction, UV-visible spectroscopy, and electrochemical impedance spectroscopy. Compared with the photovoltaic conversion efficiency of 2.35% of DSSC based on TiO₂ pure photoelectrode, the photovoltaic conversion efficiency of 3.54% was obtained. The experimental results show that the Fe₃O₄ acted as a catalyst to provide another electron pathway for DSSC, which could lower the condition of electron recombination. Moreover, it could be found from Nyquist plot that the resistance at the interface between electrolyte and TiO₂ film increased for DSSC after incorporating Fe₃O₄ into the TiO₂ photoelectrode, which indicated that the condition of electron recombination was restrained.

【 授权许可】

Unknown