Enhancement of Photocurrent Efficiency in Dye-sensitized Solar Cells Using Nanometer-sized Y-incorporated TiO2 Materials

Bulletin of the Korean chemical society

Misook Kang¹  Myeong-Heon Um¹  Sujung Kim¹  Min-Kyeong Yeo¹ 

关键词: Y-TiO2;    Dye-sensitized solar cells;    Energy conversion efficiency;    Recombination;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

This study examines the photoelectric conversion efficiency of dye-sensitized solar cells (DSSCs) when nanometer-sized Y (0, 0.1, 0.5, and 1.0 mol %)-incorporated TiO2 prepared using a solvothermal method is utilized as the working electrode material. The photoelectric properties of the Y-TiO2 used in DSSCs were studied by frequency-resolved modulated photocurrent/photovoltage spectroscopy. The recombination was much slower in the Y-TiO2-based DSSCs than in the pure TiO2-assembled DSSC. Compared to that using pure TiO2, the energy conversion efficiency was enhanced considerably by the application of Y-TiO2 in the DSSCs to approximately 6.08% for 0.5 mol % Y-TiO2.

【 授权许可】

Unknown