| 共吸附剂修饰TiO2薄膜电极 |
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| 引用本文： | 李洁,孔凡太,武国华,张昌能,戴松元.共吸附剂修饰TiO2薄膜电极[J].物理化学学报,2011,27(4):881-886. |
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| 作者姓名： | 李洁 孔凡太 武国华 张昌能 戴松元 |
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| 作者单位： | Key Laboratory of Novel Thin Film Solar Cells, Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, P. R. China |
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| 基金项目： | 国家重点基础研究发展规划(2011CBA00700); 国家自然科学基金(21003130); 安徽省自然科学基金(090414174)资助项目~~ |
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| 摘 要： | 共吸附剂修饰纳晶TiO2薄膜电极是目前染料敏化太阳电池研究的一个热点. 本文通过平带电势和电化学阻抗研究了二(3,3-二甲基丁基)次膦酸和鹅脱氧胆酸两种共吸附剂修饰对TiO2薄膜电极的平带电势和电极表面钝化能力的影响及其在染料敏化太阳电池中的应用. 结果表明, 二(3,3-二甲基丁基)次膦酸能更有效地钝化TiO2薄膜表面, 并使TiO2薄膜平带电势负移. 电化学阻抗谱测试结果表明, 在染料敏化太阳电池中, 相对于鹅脱氧胆酸, 二(3,3-二甲基丁基)次膦酸能更显著地提高器件的电子寿命和开路电压.
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| 关 键 词： | 染料敏化太阳电池 共吸附剂 暗电流 平带电势 电化学阻抗谱 |
| 收稿时间： | 2010-12-03 |
| 修稿时间： | 2011-03-03 |
TiO_2 Thin-Film Electrode Modified by Co-Adsorbents |
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| LI Jie,KONG Fan-Tai,WU Guo-Hua,ZHANG Chang-Neng,DAI Song-Yuan.TiO_2 Thin-Film Electrode Modified by Co-Adsorbents[J].Acta Physico-Chimica Sinica,2011,27(4):881-886. |
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| Authors: | LI Jie KONG Fan-Tai WU Guo-Hua ZHANG Chang-Neng DAI Song-Yuan |
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| Institution: | Key Laboratory of Novel Thin Film Solar Cells, Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, P. R. China |
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| Abstract: | A co-adsorbents modified nanocrystalline TiO2 thin-film electrode was studied for application in dye-sensitized solar cells. The effects of di(3,3-dimethylbutyl) phosphoric acid and chenodeoxycholic acid modification on the flat band potential and the passivation of the TiO2 thin-film electrode were investigated by determining the flat-band potential and undertaking electrochemical impedance spectroscopy (EIS). The results suggest that di(3,3-dimethylbutyl) phosphoric acid is more effective in passivating t... |
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| Keywords: | Dye-sensitized solar cell Coadsorbent Dark current Flat-band potential Electrochemical impedance spectroscopy |
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