Solar cell

Details Solar cell Solar cell

1996-07-30

1998-06-02

Nguyen, Nam

Batteries: thermoelectric and photoelectric

Photoelectric

Cells

136261, 438 96, 438 98, H01L 310248

Patent

active

057592926

ABSTRACT:
A solar cell has a high ability to prevent recombination of electrons near the cell surface, wherein a surface of a p-type substrate at a surface is provided with an n-type region subjected to a treatment with a phosphorus containing acid and a silicon nitride layer is then directly formed on the n-type region.
The solar cell can be prepared at a low temperature by a method comprising 1) a step of subjecting the n-type region to a phosphorus containing acid treatment at a low temperature and 2) a step of forming a silicon nitride by a vacuum and thermal CVD method.

REFERENCES:
patent: 3620829 (1971-11-01), Beck
patent: 4078945 (1978-03-01), Gonsiorawski
patent: 4227942 (1980-10-01), Hall
patent: 4640001 (1987-02-01), Koiwai et al.
patent: 4675466 (1987-06-01), Ramaprasad
"24% Efficient Silicon Solar Cells", Jianhua Zhao et al, 1994 IEEE First World Conference on Photovoltaic Energy Conversion, Hawaii, vol. II, pp. 1477-1480 (1994).
"Defect passivation in multicrystalline-Si materials by plasma-enhanced chemical vapor deposition of SiO.sub.2 SiN coatings", Z. Chen et al, Applied Physics Letters, vol. 65, pp. 2078-2080 (1994).
"Short Communication: Solar Cell Efficiency Tables (Version 6)", Martin A. Green et al, Progress in Photovoltaics, vol. 3, pp. 229-233 (1995).
"Prospect of the High Efficiency for the Vest (Via-hole Etching for the Separation of Thins films) Cell", M. Deguchi et al, 1994 IEEE First World Conference on Photovoltaic Energy Conversion, Hawaii, vol. II, pp. 1287-1290 (1994).

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