Hydrothermal growth of large-scale macroporous TiO2 nanowires and its application in 3D dye-sensitized solar cells

作者：Wang, Hai; Liu, Yong^*; Li, Ming; Huang, Hong; Zhong, Minyi; Shen, Hui

来源：Applied Physics A, 2009, 97(1): 25-29.

DOI：10.1007/s00339-009-5369-x

• NANOCRYSTALLINE PHOTOELECTROCHEMICAL CELL
• NANOTUBE-ARRAYS
• SUNLIGHT

Large-scale macroporous TiO2 nanowires (MTN) were directly grown on spiral-shaped titanium wires as photoanodes of dye-sensitized solar cells (DSSCs) via a facile hydrothermal reaction without any seeds, templates, and TiO2 powder. The MTN thin film was characterized by SEM, XRD and TEM. The studies revealed that the MTN thin film had better mechanical properties and provided an efficient pathway for the diffusion of liquid electrolyte. The efficiency of 0.86% for the 3D DSSC was obtained with a J (sc) of 2.30 mA/cm(2), V (oc) of 616 mV, and FF of 0.61. This MNT-based mini 3D DSSC is a promising photovoltaic device for applications in the fields of high-integrated micro-electronic equipment.

• 出版日期2009-10
• 单位中山大学; 桂林理工大学; 光电材料与技术国家重点实验室