Title :
Improvement of efficiency of dye-sensitized solar cell - optimization of titanium oxide photoelectrode
Author :
Arakawa, H. ; Sayama, Kazuhiro ; Hara, Kohjiro ; Sugihara, Hideki ; Yamaguchi, Toru ; Yanagida, Masatoshi ; Kawauchi, Hiroshi ; Kashima, Takeo ; Fujihashi, Gaku ; Takano, Shinfo
Author_Institution :
Nat. Inst. of Adv. Ind. Sci. & Technol., Ibaraki, Japan
Abstract :
In order to improve solar energy conversion efficiency (/spl eta/) of dye-sensitized solar cell, an optimization of TiO/sub 2/ photoelectrode for favorable light harvest efficiency (LHE) was conducted in terms of light scattering effect of TiO/sub 2/ film. Efficiency of solar cell as well as LHE was much improved by multi-layered TiO/sub 2/ photoelectrode composed of several layers having different mixing ratios TiO/sub 2/ nano-particles to light scattering TiO/sub 2/ large particles. In case of N719 dye-sensitized TiO/sub 2/ solar cell, the efficiency ( /spl eta/) of 8.7 % was obtained using an open cell. Moreover, 9.7 % as the highest efficiency was obtained by a sealed Black dye-sensitized TiO/sub 2/ solar cell with an anti-reflecting film under simulated AM 1.5 (100 mW/cm/sup 2/) irradiation.
Keywords :
dyes; light scattering; nanoparticles; semiconductor materials; solar cells; titanium compounds; 8.7 percent; 9.7 percent; N719 dye; TiO/sub 2/; dye-sensitized solar cell; light harvest efficiency; light scattering effect; photoelectrode; solar energy conversion efficiency;
Conference_Titel :
Photovoltaic Energy Conversion, 2003. Proceedings of 3rd World Conference on
Conference_Location :
Osaka, Japan
Print_ISBN :
4-9901816-0-3
