Citation: Qiu-Ping Liu. Analysis on dye-sensitized solar cells based on Fe-doped TiO₂ by intensity-modulated photocurrent spectroscopy and Mott-Schottky[J]. Chinese Chemical Letters, ;2014, 25(6): 953-956. doi: 10.1016/j.cclet.2014.03.025 shu

Analysis on dye-sensitized solar cells based on Fe-doped TiO₂ by intensity-modulated photocurrent spectroscopy and Mott-Schottky

Qiu-Ping Liu ^a,b,,

1.
a School of Pubic Policy and Management, Tsinghua University, Beijing 100084, China;
2.
b Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China

Corresponding author: Qiu-Ping Liu,
Received Date: 27 December 2013
Available Online: 6 March 2014
Fund Project:

The pure TiO₂ and Fe salts [Fe(C₂O₄)₂•5H₂O]-doped TiO₂ electrodes were prepared by the hydrothermal method. The pure TiO₂ or Fe-doped TiO₂ slurry was coated onto the fluorine-doped tin oxide glass substrate by the Doctor Blade method and then sintered at 450℃. The Mott-Schottky plot indicates that the flat band potential of TiO₂ was shifted positively after Fe-doped TiO₂. The positive shift of the flat band potential improves the driving force of injected electrons from the LUMO of the dye to the conduction band of TiO₂. This study shows that photovoltaic efficiency increased by 22.9% from 6.07% to 7.46% compared to pure TiO₂, and the fill factors increased from 0.53 to 0.63.
- Dye sensitized solar cells,
- Titanium dioxide,
- Fe-doped film,
- Photovoltaic performance,
- Flat band potential
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沈阳化工大学材料科学与工程学院沈阳 110142

Analysis on dye-sensitized solar cells based on Fe-doped TiO2 by intensity-modulated photocurrent spectroscopy and Mott-Schottky

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通讯作者: 陈斌, bchen63@163.com

Analysis on dye-sensitized solar cells based on Fe-doped TiO₂ by intensity-modulated photocurrent spectroscopy and Mott-Schottky