Promotion of Power Conversion in Dye Sensitized Solar Cells by Using Hydroxylated TiO2 Electrodes

被引:3
作者
Hirose, Fumihiko [1 ]
Shikaku, Masaya [1 ]
Kuribayashi, Koei [1 ]
Suzuki, Takahiko [1 ]
机构
[1] Yamagata Univ, Grad Sch Sci & Technol, Yamagata 9928510, Japan
关键词
dye-sensitized solar cell; N719; hydroxylation; adsorption; power conversion efficiency; INFRARED-SPECTROSCOPY; ANATASE TIO2; ADSORPTION; NANOCRYSTALLINE; FILMS; DEPOSITION; MORPHOLOGY; EFFICIENCY; SI(100); SURFACE;
D O I
10.2494/photopolymer.23.287
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
High density adsorption methods of N719 on TiO2 electrodes with intentional hydroxylation were examined for achieving higher power conversion efficiency in dye sensitized solar cells. The IR absorption spectroscopy indicated that both UV and water vapor treatments for the hydroxylation were effective in generating OH sites on TiO2 for the high density adsorption of N719. In the water vapor treatment, setting the TiO2 temperature around 190 degrees C is necessary to generate OH sites effectively on the surface. Both the hydroxylation methods were effective in enhancing short circuit current density in dye sensitized solar cells, where the increase was confirmed 23% compared to those without the treatments.
引用
收藏
页码:287 / 291
页数:5
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