Method of fabricating an array of spherical solar cells

H - Electricity – 01 – L

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H01L 31/0352 (2006.01) H01L 31/0216 (2006.01) H01L 31/042 (2006.01)

Patent

CA 2513946

A method of fabricating a photovoltaic solar cell is provided. A plurality of generally spherical semiconductor elements are provided. Each of the semiconductor elements has a core and an outer surface forming a p-n junction. An anti-reflection coating is deposited on the outer surface of each of the semiconductor elements and each of the semiconductor elements is bonded into a perforated aluminum foil array thereby providing ohmic contact to a first side of the p-n junction. The anti-reflection coating is removed from a portion of each of the semiconductor elements and then the core is exposed, thereby allowing ohmic contact to be made to a second side of the p-n junction.

L'invention concerne un procédé de fabrication d'une pile solaire photovoltaïque. Elle concerne une pluralité d'éléments semi-conducteurs généralement sphériques. Chacun de ces éléments semi-conducteurs possède un coeur et une surface extérieure formant une jonction p-n. Un revêtement antiréfléchissant est déposé sur la surface extérieure de chacun des éléments semi-conducteurs et chacun de ces éléments est introduit dans un feuillard d'aluminium perforé, ce qui permet de créer un contact ohmique avec un premier côté de la jonction p-n. Le revêtement antiréfléchissant est retiré d'une partie de chacun des éléments semi-conducteurs, puis le coeur est exposé, ce qui permet de créer un contact ohmique avec un deuxième côté de la jonction p-n.

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