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Enhanced Performance of Dye-Sensitized Solar Cells with Surface-treated Titanium Dioxides
- Enhanced Performance of Dye-Sensitized Solar Cells with Surface-treated Titanium Dioxides
- Han, YS[Han, Yoon Soo]; Kim, JT[Kim, Jong Tae]
- DGIST Authors
- Kim, JT[Kim, Jong Tae]
- Issue Date
- Molecular Crystals and Liquid Crystals, 565, 138-146
- Article Type
- Coatings; Conversion Efficiency; Current Voltage Characteristics; Dark Current-Voltage; Dip-Coating; Dip-Coating Process; Dye-Sensitized Solar Cell; Dye-Sensitized Solar Cells (DSCs); Electrochemical Impedance Spectra; Fill-Factor; Incident Photon-to-Current Conversion Efficiencies; Lithium Acetate; Modified Electrodes; Open Circuit Voltage; Photoelectrochemical Cells; Photovoltaic Effects; Photovoltaic Property; Power Conversion Efficiencies; Reference Devices; Solar Cells; Surface Dipole; TiO; Titanium Dioxide
- This work reports on the preparation of lithium acetate (LA)-incorporated TiO 2 electrodes by a very simple dip coating process and the effects of the modified electrode on the photovoltaic properties of dye-sensitized solar cells (DSSCs). The DSSC with a LA-modified TiO 2 layer exhibited an increase in both open circuit voltage and fill factor, resulting in a power conversion efficiency of 7.69% compared to that of a reference device with bare TiO 2 (6.82%). By monitoring the changes in electrochemical impedance spectra, dark current-voltage characteristics and incident photon-to-current conversion efficiency, it was revealed that the incorporated LA functioned as a surface dipole on the TiO 2 electrode. © 2012 Kyungil University.
- Taylor and Francis Ltd.
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- ETC1. Journal Articles
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