Method of fabricating large scale solar cells

Details Method of fabricating large scale solar cells Method of fabricating large scale solar cells

H - Electricity

01

L

345/23

H01L 31/18 (2006.01) C03C 17/10 (2006.01) C03C 17/34 (2006.01) H01L 21/368 (2006.01) H01L 31/0336 (2006.01)

Patent

CA 1039394

ABSTRACT A method of making low cost solar cells on a large scale basis by means of a continuous process of fabricating float glass and coating the float glass, in sequence, with tin oxide, cadmium sulphide, and copper sulphide, while the glass floats atop tanks of molten material in a furnace of proper temperature for each step of the process, the application of the coatings, in a preferred embodiment, being accomplished by deposit- ing materials which form the coatings on contact with heated sur- faces at such slow rates and, in the case of spray application, via drops of such uniformity that the float glass may (1) remain of uniform temperatures by virtue of the superior thermal conductivity of the molten material and retain those temperatures despite the abstraction of heat from the glass by evaporation of liquids and/or formation of crystalline layers, and (2) be substantially free of temperature gradients along the surface of the sheet glass.

215901

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