Enhancement of optical absorption for below 5 mu m thin-film poly-Si solar cell on glass substrate

被引：10

作者：

Nakajima, A

Suzuki, T

Yoshimi, M

Yamamoto, K

机构：

[1] Central Research Laboratories, Kaneka Corporation, Kobe 652, Yoshida-cho, Hyogo-ku

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 1997年 / 48卷 / 1-4期

关键词：

optical absorption; thin films; poly-Si solar cells; glass substrate;

D O I：

10.1016/S0927-0248(97)00114-1

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Optical confinement effect of thin-film polycrystalline-Si (poly-Si) solar cell on glass substrate fabricated at low-temperature has been investigated as a function of cell thickness of less than 5 mu m. We found that it is possible to fabricate the textured Si thin film in situ on a glass substrate and that the reflectance at long-wavelength light is reduced by surface texturing. Thin-film poly-Si solar cell and a-Si:H (0.45 mu m)/poly-Si (5 mu m) tandem solar cell exhibit the efficiency of 8.6% and 12.8%, respectively. The numerical study in terms of the light trapping explains the excellent high short-circuit current density (J(sc) above 27 mA/cm(2) at the 4.7 mu m thin-film poly-Si solar cell.

引用

页码：287 / 294

页数：8

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