1. Synthesis of TiO2 nanotube arrays and its application in mini-3D dye-sensitized solar cells
- Author
-
Hai Wang, Jiemin Zheng, Ming Li, Yong Liu, Hui Shen, Qihong Ye, and Hongmei Xu
- Subjects
Anatase ,Materials science ,Acoustics and Ultrasonics ,business.industry ,Scanning electron microscope ,Anodizing ,Energy conversion efficiency ,chemistry.chemical_element ,Nanotechnology ,Condensed Matter Physics ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,law.invention ,Dye-sensitized solar cell ,chemistry ,Transmission electron microscopy ,law ,Solar cell ,Optoelectronics ,business ,Titanium - Abstract
Here we report a mini-three-dimensional dye-sensitized solar cell (3D DSSC) based on TiO2 nanotube arrays (TNAs). TNAs were directly grown on spiral-shaped titanium wire via a facile potentiostatic anodization. Furthermore, the TNAs film was characterized by scanning electron microscopy, x-ray diffraction and transmission electron microscopy, indicating that the annealed TNAs were composed of single-crystalline anatase particles. Unlike conventional flat DSSC, this mini-3D DSSC could easily hold liquid electrolyte due to the capillary force which facilitated sealing the cell. This mini-3D DSSC showed an energy conversion efficiency of 4.1% under the AM 1.5 condition, which was much higher compared with that (3.2%) of the backside illuminated TNAs based DSSC of the same projected area.
- Published
- 2010
- Full Text
- View/download PDF