Improvement of light-trapping effect on microcrystalline silicon solar cells by using high haze transparent conductive oxide films

Author

Kambe, Mika ; Fukawa, Makoto ; Taneda, Naoki ; Yoshikawa, Yukio ; Sato, Kazuo ; Ohki, Kazuki ; Hiza, Shuichi ; Yamada, Akira ; Konagai, Makoto

Author_Institution

Res. Center, Asahi Glass Co. Ltd., Yokohama, Japan

Volume

2

fYear

2003

fDate

18-18 May 2003

Firstpage

1812

Abstract

Influences of shape and haze value of textured TCO (transparent conductive oxide) films on the light-trapping effect of microcrystalline silicon (/spl mu/c-Si) thin film solar cells were investigated. The pyramidal shaped surface texture with high haze value was found to show the lowest cell reflectance in the longer wavelength region by using computer simulation. The Jsc of the /spl mu/c-Si single junction thin film solar cell (i-layer thickness of 0.5 /spl mu/m) fabricated on the pyramidal textured TCO with 40% haze increased by 16% as compared with the cell using the 13% haze TCO, which indicates the light-trapping is effectively improved by using high haze TCO films.

Keywords

amorphous semiconductors; elemental semiconductors; infrared spectra; semiconductor thin films; short-circuit currents; silicon; solar cells; surface morphology; surface texture; visible spectra; 0.5 micron; Si; cell reflectance; computer simulation; haze value measurement; high haze transparent conductive oxide films; light trapping effect; microcrystalline silicon thin film solar cells; pyramidal shaped surface texture; short circuit current; single junction thin film solar cell;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Energy Conversion, 2003. Proceedings of 3rd World Conference on

Conference_Location

Osaka, Japan

Print_ISBN

4-9901816-0-3

Type

conf

Filename

1306287