An aluminum alloy back junction solar cell and a process for...

H - Electricity – 01 – L

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H01L 31/068 (2006.01) H01L 31/0224 (2006.01) H01L 31/0288 (2006.01) H01L 31/0352 (2006.01)

Patent

CA 2368039

A process for fabricating a solar cell is described. The process includes: providing a base layer (118), and fabricating an emitter layer (120) of p-type conductivity on a same side as the non- illuminated surface (128) of the base layer to provide a strongly doped p-type emitter layer and a p-n junction (124) between the n-type base layer (118) and the p-type emitter layer (120). The base layer of the present invention has n-type conductivity and is defined by an illuminated surface (126) and a non-illuminated surface (128) which is opposite to the illuminated surface.

L'invention concerne un procédé de fabrication d'une cellule solaire. Le procédé consiste à utiliser une couche de base (118) et à fabriquer une couche émettrice (120) de conductivité de type p sur le même côté que la surface non illuminée (128) de la couche de base afin de produire une couche émettrice de type p fortement dopée et une jonction p-n (124) entre la couche de base (118) de type n et la couche émettrice (120) de type p. La couche de base de la présente invention présente une conductivité de type n et elle est définie par une surface illuminée (126) ainsi qu'une surface non illuminée (128) laquelle se trouve en face de la surface illuminée.

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