单晶TiO2纳米线束阵列的合成及光电转换性能研究

doi:10.3724/SP.J.1077.2010.01105

无机材料学报 ›› 2010, Vol. 25 ›› Issue (10): 1105-1109.DOI: 10.3724/SP.J.1077.2010.01105

单晶TiO₂纳米线束阵列的合成及光电转换性能研究

葛增娴, 魏爱香, 刘俊, 赵旺, 刘传标

(广东工业大学材料与能源学院, 广州 510006)

收稿日期:2010-01-24 修回日期:2010-04-19 出版日期:2010-10-20 网络出版日期:2010-09-26
基金资助:
广东省科技计划项目(2008B010800004)

Synthesis and Photovoltaic Devices Performance of Single Crystalline TiO₂ Nanowire Bundle Arrays

GE Zeng-Xian, WEI Ai-Xiang, LIU Jun, ZHAO Wang, LIU Chuan-Biao

(Faculty of Material and Energy, Guangdong University of Technology, Guangzhou 510006, China)

Received:2010-01-24 Revised:2010-04-19 Published:2010-10-20 Online:2010-09-26
Supported by:
Foundation for Sci-Tech Research Projects of Guangdong Province (2008B010800004)

摘要/Abstract

摘要： 采用水热合成技术, 以盐酸、去离子水和钛酸丁酯为反应前驱物, 在透明导电玻璃(FTO)衬底上合成TiO₂纳米线束阵列. 采用X射线衍射(XRD)、扫描电子显微镜(SEM)和高分辨透射电镜(TEM)对其结构和形貌进行了分析. 结果表明: 在FTO衬底上形成了垂直排列的具有金红石结构的单晶TiO₂纳米线束阵列, TiO₂纳米线束由直径4~6nm的几十条纳米线聚集在一起, 形成宽度约110~210nm、长度约3?m的四方柱状结构. 研究了以TiO₂纳米线束阵列为光阳极制备的染料敏化太阳能电池的光电性能, 其开路电压为0.72V, 短路电流密度为2.9mA/cm², 填充因子为0.42, 转换效率为0.88%.

关键词: 水热合成技术, TiO₂纳米线束阵列, 染料敏化太阳能电池

Abstract: Highly oriented single-crystalline TiO₂ nanowire bundle arrays on transparent conductive fluorine- doped tin oxide (FTO) substrates were prepared by hydrothermal method using the precursors of tetrabutyl titanate, deionized water and hydrochloric acid. The structure and morphology characteristics of all the samples were analyzed by X-ray diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM). Results show that highly uniform and dense vertical arrays of single crystalline nanowire bundles with flat tetragonal crystallographic planes are formed. The nanowire bundles have a width of 110-210 nm (approximately 20-40 nanowires in each bundle), the single nanowire’s diameter is between 4-6 nm, and the length of the nanowire bundle is about 3μm. Dye-sensitized solar cells (DSSCs) made from oriented TiO₂ nanowire arrays anode are studied. The open circuit voltage, short circuit current density and fill factor of the cells are about 0.72 V, 2.9 mA/cm²and 0.42, respectively. The power conversion efficiency is about 0.88%.

Key words: hydrothermal method, TiO₂ nanowire bundle arrays, dye-sensitized solar cells

中图分类号:

TM23

葛增娴, 魏爱香, 刘俊, 赵旺, 刘传标. 单晶TiO₂纳米线束阵列的合成及光电转换性能研究[J]. 无机材料学报, 2010, 25(10): 1105-1109.

GE Zeng-Xian, WEI Ai-Xiang, LIU Jun, ZHAO Wang, LIU Chuan-Biao. Synthesis and Photovoltaic Devices Performance of Single Crystalline TiO₂ Nanowire Bundle Arrays[J]. Journal of Inorganic Materials, 2010, 25(10): 1105-1109.

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单晶TiO₂纳米线束阵列的合成及光电转换性能研究

Synthesis and Photovoltaic Devices Performance of Single Crystalline TiO₂ Nanowire Bundle Arrays

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