一步法热分解制备染料敏化太阳能电池 Pt对电极

doi:10.11901/1005.3093.2014.572

材料研究学报

2015, Vol. 29

Issue (9): 656-662 DOI: 10.11901/1005.3093.2014.572

本期目录 | 过刊浏览

一步法热分解制备染料敏化太阳能电池 Pt对电极

李思倩,黄杰,谢剑,张军,叶葱(

),王浩

湖北大学有机化工新材料湖北省协同创新中心物理与电子科学学院武汉 430062

High Efficient Pt Counter Electrode Prepared by One-step Thermal Decomposition for Dye-sensitized Solar Cell

Siqian LI,Jie HUANG,Jian XIE,Jun ZHANG,Cong YE(

),Hao WANG

Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Faculty of Physics and Electronic Technology, Hubei University, Wuhan 430062, China

引用本文:

李思倩,黄杰,谢剑,张军,叶葱,王浩. 一步法热分解制备染料敏化太阳能电池 Pt对电极[J]. 材料研究学报, 2015, 29(9): 656-662.
Siqian LI, Jie HUANG, Jian XIE, Jun ZHANG, Cong YE, Hao WANG. High Efficient Pt Counter Electrode Prepared by One-step Thermal Decomposition for Dye-sensitized Solar Cell[J]. Chinese Journal of Materials Research, 2015, 29(9): 656-662.

全文: PDF(2036 KB) HTML

摘要:

用旋涂热分解前驱H₂PtCl₆6H₂O溶液制备Pt/FTO对电极, 研究了旋涂退火次数对Pt/FTO对电极的载铂量、透光率和组装的染料敏化太阳能电池光电性能的影响。结果表明, 用5次旋涂退火的对电极组装的电池具有最佳的能量转换效率(6.78%), 高于用传统的磁控溅射对电极组装的电池。基于在最佳光电性能情况下对电极的旋涂次数和载Pt量, 进一步优化H₂PtCl₆?6H₂O前驱液的浓度和使用体积。采用一步滴涂退火处理, 得到了具有高透光性、低载Pt量和高的组装电池效率的Pt/FTO对电极。用此一步法制备的Pt/FTO对电极, 组装成的电池能量转换效率达到6.92%。

关键词 ：材料合成与加工工艺, TiO₂纳米管阵列, Pt对电极, 染料敏化太阳能电池, 热分解, 光电性能

Abstract：

The Pt counter electrode was prepared on fluorine-doped tin oxide (FTO) glass by spin-coating and then thermal-decomposition of the precursor of H₂PtCl₆?6H₂O. The influence of the number of spin coating-annealing treatment on the amount of deposited platinum and light transmittance for the electrode, as well as the photovoltaic performance of dye sensitized solar cells assembled with the counter electrode was investigated. It was found that the optimal power conversion efficiency of 6.78% was obtained for cells assembled with Pt/FTO counter electrode after five spin coating-annealing treatments, which was higher than that of the cell assembled with the traditional counter electrode prepared by magnetron sputtering technique. Thereafter, the required concentration and volume of H₂PtCl₆?6H₂O precursor for the process could be further optimized in terms of the optimal number of spin coating-annealing and the amount of deposited platinum on the FTO glass counter electrode to ensure the best power conversion efficiency of dye sensitized solar cells. Furthermore, a novel Pt/FTO counter electrode was prepared by a one-step drop coating-annealing process, which exhibited high transmittance and low deposited platinum and then the power conversion efficiency could reach to 6.92% for cells assembled with such Pt/FTO counter electrode.

Key words： synthesizing and processing technics TiO₂ nanotube arrays Pt counter electrode dye-sensitized solar cell thermal decomposition photovoltaic performance

收稿日期: 2014-10-08

基金资助:* 国家自然科学基金11374090, 51372075资助项目。

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图1 Pt/FTO对电极的XRD谱

图2 FTO衬底和旋涂退火次数不同的Pt/FTO对电极的SEM像

图3 不同旋涂烧结次数的Pt/FTO对电极的透过率

图4 不同旋涂烧结次数的Pt/FTO对电极组装DSSC的J-V曲线

表1 不同旋涂烧结次数的Pt/FTO对电极组装DSSC性能参数

图5 用一步法制备的对电极的XRD谱、透过率、用以组装的电池J-V曲线及其表面SEM像

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