High rate deposition of silicon thin films by hot wire cell method for solar cell applications

被引:5
作者
Konagai, M [1 ]
Tsushima, T [1 ]
Ide, Y [1 ]
Asakusa, K [1 ]
Fujisaki, T [1 ]
Kim, MK [1 ]
Wakita, Y [1 ]
Yamada, A [1 ]
机构
[1] Tokyo Inst Technol, Dept Phys Elect, Meguro Ku, Tokyo 1528552, Japan
来源
CONFERENCE RECORD OF THE TWENTY-EIGHTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 2000 | 2000年
关键词
D O I
10.1109/PVSC.2000.916001
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
Hot wire cell method has been newly developed and successfully applied to grow polycrystalline and amorphous Si thin films with relatively high growth rates of 0.4-2.0nm/s. It is found that polycrystalline Si films can be obtained at substrate temperatures of 175-400 degreesC without a hydrogen dilution when the filament temperature is 2000-2100 degreesC. Valency control has been carried out by using of PH3 and B2H6. Up to now, high conductivities of 13 S/cm and 4 S/cm have been achieved for n-type and p-type polycrystalline Si thin films, respectively. Polycrystalline Si and a-Si solar cells prepared with the deposition rates of 0.4-1.0nm/s showed the efficiencies of similar to1% and 4.3%, respectively. We found by SIMS analysis that the high concentration of O and C atoms is incorporated into the film which limits the present cell performances.
引用
收藏
页码:788 / 791
页数:4
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