金红石TiO<sub>2</sub>纳米棒阵列的生长机理及在染料敏化太阳电池中的应用

doi:10.11901/1005.3093.2013.611

材料研究学报

2014, Vol. 28

Issue (6): 469-475 DOI: 10.11901/1005.3093.2013.611

本期目录 | 过刊浏览

金红石TiO₂纳米棒阵列的生长机理及在染料敏化太阳电池中的应用

张增明(

),王璟,丁雨田,胡勇,尚兴记

兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室兰州 730050

Growth Mechanism of One-dimensional Rutile TiO₂Nanorods Array and Its Application for Dye-Sensitized Solar Cells

Zengming ZHANG(

),Jing WANG,Yutian DING,Yong HU,Xingji SHANG

State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Materials, Lanzhou University of Technology, Lanzhou 730050

引用本文:

张增明,王璟,丁雨田,胡勇,尚兴记. 金红石TiO₂纳米棒阵列的生长机理及在染料敏化太阳电池中的应用[J]. 材料研究学报, 2014, 28(6): 469-475.
Zengming ZHANG, Jing WANG, Yutian DING, Yong HU, Xingji SHANG. Growth Mechanism of One-dimensional Rutile TiO₂Nanorods Array and Its Application for Dye-Sensitized Solar Cells[J]. Chinese Journal of Materials Research, 2014, 28(6): 469-475.

全文: PDF(5659 KB) HTML

摘要:

用水热法制备了金红石TiO₂纳米棒阵列光阳极, 并对样品进行XRD、SEM和HRTEM表征分析。文中研究了不同水热条件对金红石TiO₂纳米棒阵列的生长形貌影响, 详细探讨了其水热生长机理。结果表明: 金红石纳米棒的直径和长度随着水热体系能量增加而增加; 添加剂对金红石纳米棒的水热生长影响较大; 在金红石TiO₂纳米棒阵列光阳极水热生长过程中, 会同导电玻璃衬底之间形成致密层, 该致密层对DSSCs的光电转换性能影响较严重。将制备的金红石TiO₂纳米棒阵列光阳极应用于DSSCs中, 在AM 1.5 100 mW/cm²(air-mass 1.5, AM 1.5意为光线通过大气的实际距离为大气垂直厚度的1.5倍)标准条件下, 测得1.81%的光电转换效率。

关键词 ：金红石纳米棒, 水热法, 生长机理, 染料敏化太阳能电池

Abstract：

Photoanodes with a film of rutile TiO₂nanorods were prepared on a conductive glass substrate by hydrothermal method and then characterized by XRD, SEM and HRTEM. The effect of different hydrothermal conditions on the morphology of rutile TiO₂nanorods was carefully examined. The result shows that the diameter and length of rutile TiO₂ nanorods increase with the increase of the energy of hydrothermal system; the additives has a great effect on the growth of rutile nanorods; a dense layer will form at the interface of conductive substrates and the rutile TiO₂nanorods, which will affect the photo-electronic properties of DSSCs markedly. Under the stand conditions (AM 1.5 100 mW/cm²), a photoelectric conversion efficiency 1.81% is measured for the dye-sensitized solar sells (DSSCs) constructed with the prepared photoanodes.

Key words： rutile nanorod hydrothermal growth growth mechanism DSSCs

收稿日期: 2013-08-26

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https://www.cjmr.org/CN/10.11901/1005.3093.2013.611 或 https://www.cjmr.org/CN/Y2014/V28/I6/469

图1 不同TTB浓度的TiO2样品在450℃处理0.5 h后的XRD图谱

图2 金红石纳米棒阵列的TEM和HRTEM图片

图3 不同TTB浓度下金红石纳米棒阵列微观形貌

图4 不同水热温度下金红石纳米棒阵列的表面形貌

图5 NaCl添加量对金红石纳米棒阵列生长的影响

图6 不同Cl-含量金红石纳米棒阵列粒径分布

图7 不同条件下DSSCs光阳极的染料吸附性能

表1 染料敏化太阳电池光电转换性能参数(图8)

图8 不同条件下染料敏化太阳能电池的光电转换性能

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