| 室温合成金红石TiO2及其在染料敏化太阳能电池中的应用 |
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| 引用本文： | 刘佳,杨浩田,张敬波,周晓文,林原. 室温合成金红石TiO2及其在染料敏化太阳能电池中的应用[J]. 物理化学学报, 2011, 27(2): 408-412. DOI: 10.3866/PKU.WHXB20110237 |
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| 作者姓名： | 刘佳 杨浩田 张敬波 周晓文 林原 |
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| 作者单位： | 1. Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China;2. Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China |
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| 基金项目： | supported by the National Key Basic Research Program of China(973)(2006CB202605); High-Tech Research and Development Program of China(983)(2007AA05Z439); National Natural Science Foundation of China(20973183)~~ |
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| 摘 要： | 以钛酸四丁酯为前驱体, 在室温下通过水解沉淀法合成了金红石型TiO2纳米粒子; 用X射线衍射(XRD)研究了反应温度、酸度以及酸的种类对形成TiO2晶型的影响. 实验结果表明, 高酸度、低温度以及Cl-有助于金红石相的生成. 在相同条件下加入一定量P105 (EO37PO56EO37)三嵌段聚合物制备出一种金红石型粗糙聚集球. 扫描电子显微镜(SEM)结果表明这种粗糙聚集球直径大约350 nm, 比表面积测试(BET)及紫外漫反射测试发现粗糙球在保持较大比表面积的同时有散射效应. 此粗糙球与20 nm TiO2粒子以质量比1:4混合作为工作电极的散射层并应用于染料敏化太阳能电池, 电池效率达到7.27%, 较不加粗糙球的效率提高17%; 我们认为这是因为在保持工作电极染料吸附量基本不变的条件下粗糙球提高光散射性能.
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| 关 键 词： | 染料敏化太阳能电池 二氧化钛 金红石 散射层 |
| 收稿时间： | 2010-10-15 |
| 修稿时间： | 2011-01-12 |
Room Temperature Synthesis of Rutile TiO2 and Its Application in Dye-Sensitized Solar Cells |
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| LIU Jia,YANG Hao-Tian,ZHANG Jing-Bo,ZHOU Xiao-Wen,LIN Yuan. Room Temperature Synthesis of Rutile TiO2 and Its Application in Dye-Sensitized Solar Cells[J]. Acta Physico-Chimica Sinica, 2011, 27(2): 408-412. DOI: 10.3866/PKU.WHXB20110237 |
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| Authors: | LIU Jia YANG Hao-Tian ZHANG Jing-Bo ZHOU Xiao-Wen LIN Yuan |
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| Affiliation: | 1. Beijing National Laboratory for Molecular Sciences, Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China;2. Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China |
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| Abstract: | We prepared rutile TiO2 powders of good crystallinity by hydrolyzing a Ti(OC4H9)4 precursor at room temperature and by reprecipitation.X-ray diffraction(XRD) revealed that higher acidity,lower temperature,and specific amounts of Cl-as a medium result in rutile TiO2.This rutile TiO2 has an irregular rice-like structure.After adding the P105(EO37PO56EO37) tri-block copolymer as a structural agent,the rutile TiO2 aggregated to form rough 350 nm spheres.These rough spheres have a greatly enhanced light harvesti... |
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| Keywords: | Dye-sensitized solar cell TiO2 Rutile Scattering layer |
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