TiO<sub>2</sub>致密层的制备及对染料敏化太阳能电池性能的研究

摘要

采用旋涂法在导电玻璃上制备TiO₂致密层来抑制电子的复合。采用以月桂胺盐酸盐作为形貌控制剂的溶胶凝胶法制备粒径8～10 nm的TiO₂致密层颗粒。引入该TiO₂致密层的染料敏化太阳能电池的短路电流密度（J_sc）提高了15.1%，光电转化效率（η）提高了25.6%，开路电压（V_oc）没有明显的变化。短路电流密度的大幅度提升说明该TiO₂致密层可以有效抑制导电玻璃上电子与电解液中氧化还原电对的电子复合。

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	杨雁博
	冯亚青
	彭啸
	孟舒献
	张宝

关键词： DSSC； TiO₂致密层；导电玻璃/TiO₂电极界面；复合

Abstract：

Compact layers used to prevent the electron recombination are introduced onto the fluorine-doped tin oxide(FTO)glass by a spin-coating method. Dodecylamine hydrochloride as morphology control agent for the synthesis of 8-10 nm TiO₂ compact layer particles via sol-gel method is developed. The short-circuit current density (J_sc) and solar energy conversion efficiency (η) are improved by 15.1% and 25.6%, respectively, after introducing the compact layers to DSSCs from our prepared TiO₂ sol via the spin-coating method, and no significant changes observed in the open-circuit potential (V_oc) relative to the traditional DSSCs without the compact layers. The remarkable improvements of J_sc suggest that such compact TiO₂ layers which functioned as blocking layers are effective in suppressing the recombination process between the redox electrolyte and the conductive FTO surface.

Keywords： DSSC； TiO₂ compact layer； FTO/TiO₂ electrode； recombination

Received 2014-05-03;

Fund:

国家自然科学基金（21076147）、国际科技合作计划（2012DFG41980）及天津大学自主创新基金（2013）。

Corresponding Authors: 冯亚青,E-mail:yqfeng@tju.edu.cn。 Email: yqfeng@tju.edu.cn

About author: 杨雁博(1988-),男,硕士研究生,现从事染料敏化太阳能电池的研究。

引用本文:

杨雁博, 冯亚青, 彭啸, 孟舒献, 张宝.TiO₂致密层的制备及对染料敏化太阳能电池性能的研究[J]. 化学工业与工程, 2016,33(4): 85-90

Yang Yanbo, Feng Yaqing, Peng Xiao, Meng Shuxian, Zhang Bao.Preparation of TiO₂ Compact Layers for Use in Dye-Sensitized Solar Cells[J]. Chemcial Industry and Engineering, 2016,33(4): 85-90

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