Title :
High Efficiency of Dye-Sensitized Solar Cell and Module
Author :
Han, Liyuan ; Fukui, Atsushi ; Fuke, Nobuhiro ; Koide, Naoki ; Yamanaka, Ryohsuke
Author_Institution :
Solar Syst. Dev., Sharp Corp., Nara
Abstract :
The improvement of cell performance of dye-sensitized solar cells (DSCs) was investigated by means of haze of TiO2 electrodes and series-internal resistance. It was found that the high haze of TiO 2 electrodes effectively improves the external quantum efficiency of DSCs. The series-internal resistance is successfully reduced by increasing the surface roughness of platinum counter electrodes and by decreasing the thickness of electrolyte layer. The highest single cell efficiency of 11.1% (aperture area: 0.219 cm2 ) was achieved and confirmed by a public test center (AIST). Furthermore, large-scaled cell was fabricated using current collecting metal grids, and the efficiency of 6.8% (aperture area: 101 cm2 ) was obtained. Moreover, integrated DSC module was investigated and the efficiency of 6.3% (aperture area: 26.50 cm2) was also confirmed by the public test center
Keywords :
dyes; electrodes; electrolytes; solar cells; surface roughness; titanium compounds; TiO2; current collecting metal grids; dye-sensitized solar cell; electrolyte layer; integrated DSC module; platinum counter electrodes; quantum efficiency; series-internal resistance; surface roughness; Apertures; Counting circuits; Electrodes; Equivalent circuits; Extinction coefficients; Photovoltaic cells; Platinum; Solar system; Surface resistance; Testing;
Conference_Titel :
Photovoltaic Energy Conversion, Conference Record of the 2006 IEEE 4th World Conference on
Conference_Location :
Waikoloa, HI
Print_ISBN :
1-4244-0017-1
Electronic_ISBN :
1-4244-0017-1
DOI :
10.1109/WCPEC.2006.279411
