| 电化学阻抗谱研究染料/Al2O3交替组装结构的光伏特性及作用机理 |
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| 引用本文： | 高瑞,马蓓蓓,王立铎,史彦涛,董豪鹏,邱勇.电化学阻抗谱研究染料/Al2O3交替组装结构的光伏特性及作用机理[J].物理化学学报,2011,27(2):413-418. |
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| 作者姓名： | 高瑞 马蓓蓓 王立铎 史彦涛 董豪鹏 邱勇 |
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| 作者单位： | Key Laboratory of Organic Optoelectronics & Molecular Engineering of the Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China |
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| 基金项目： | supported by the National Natural Science Foundation of China(50873055); National Key Basic Research and Development Program of China(973)(2009CB930602)~~ |
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| 摘 要： | 使用Al2O3和N3染料制备了一种交替组装的结构, 该结构能够提高染料敏化太阳能电池(DSCs)的开路电压(Voc), 短路电流(Jsc)和转换效率(η). 为了研究(染料/Al2O3)交替组装结构的作用机理, 使用电化学阻抗谱技术分析了电池的界面电阻. 分析结果表明, 随着交替组装结构中(染料/Al2O3)单元的增加, 光阳极/染料/电解质界面的电阻降低, 电池性能随之提高. 基于电化学阻抗谱分析结果, 建立了一系列的等效电路模型, 从理论上解释了(染料/Al2O3)交替组装结构的作用机理.
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| 关 键 词： | 染料敏化太阳能电池 交替组装结构 等效电路模型 |
| 收稿时间： | 2010-10-12 |
| 修稿时间： | 2011-01-10 |
Photovoltaic Properties and Mechanism Analysis of a Dye/Al2O3 Alternating Assembly Structure by Electrochemical Impedance Spectroscopy |
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| GAO Rui,MA Bei-Bei,WANG Li-Duo,SHI Yan-Tao,DONG Hao-Peng,QIU Yong.Photovoltaic Properties and Mechanism Analysis of a Dye/Al2O3 Alternating Assembly Structure by Electrochemical Impedance Spectroscopy[J].Acta Physico-Chimica Sinica,2011,27(2):413-418. |
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| Authors: | GAO Rui MA Bei-Bei WANG Li-Duo SHI Yan-Tao DONG Hao-Peng QIU Yong |
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| Institution: | Key Laboratory of Organic Optoelectronics & Molecular Engineering of the Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China |
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| Abstract: | N3 dye and Al2O3 were used to form an alternating assembly structure.The current density-voltage(J-V) characterization showed that this structure improved the performance of dye-sensitized solar cells(DSCs).Electrochemical impedance spectroscopy(EIS) was used to study the internal resistance of this alternating assembly structured DSCs.The results showed that the resistance at the sensitized TiO2/electrolyte interface decreased as the number of(dye/Al2O3) units increased,and the device's conversion efficien... |
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| Keywords: | Dye-sensitized solar cell Alternating assembly structure Equivalent circuit model |
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