Hydrothermal synthesis of mesoporous TiO2 microspheres for dye-sensitized solar cells

作者：Tang Shen; Huang Miao Liang^*; Shang Guang Lu; Yu Fu Da; Wang Jiang Li; Lan Zhang; Wu Ji Huai

来源：Journal of Functional Materials, 2012, 43(16): 2181-2186.

• Degussa P25
• Dye-Sensitized solar cell
• Dye-sensitized solar cells
• High surface area
• Hydrothermal methods
• Mesoporous
• Mesoporous TiO
• Photo-electrodes
• Photoelectrode
• Solar light
• Surface area
• Surface area analyzers
• TiO
• Titanium sulfate
• XRD

Mesoporous TiO2 microspheres with high surface areas were prepared by hydrothermal method using titanium sulfate as raw materials in the presence of urea, and were characterized by XRD, FESEM and surface area analyzer. The effect of the added amount of urea on the particle size, surface area and pore size of the mesoporous TiO2 microspheres were investigated. The as-synthesized mesoporous TiO2 microspheres were then used to prepare the TiO2 photoelectrode of the dye-sensitized solar cells (DSSCs) by a doctor-blade method. The results indicated that the cell assembled with the TiO2 photoelectrodes fabricated with the mesoporous TiO2 microspheres synthesized with 1.2 g urea showed the light-to-electric energy conversion efficiency of 6.2% under illumination of simulated AM 1.5G solar light (100 mW/cm2), which was much higher compared with a commercial Degussa P25 TiO2 nanocrystals photoelectrode (4.24%).

• 出版日期2012