Solar cell cover glass
AssigneeCorning Incorporated
InventorsPaul S. Danielson, Ronald L. Stewart
Life of this patent
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Abstract
A borosilicate glass having properties that enable it to be drawn as microsheets for use as a solar cell cover glass, and a solar cell having such microsheet as a cover glass, the glass having a composition consisting essentially of, expressed in terms of weight percent on an oxide basis: SiO2 59-69 ZnO 6.5-8.5 B2O3 8.5-14 CeO2 0.25-3 Al2O3 2-2.5 TiO2 0-1 Na2O 5.5-12.5 CeO2 + TiO2 0.5-4 K2O 0-8 Sb2O3 0-0.5.
Claims14
A borosilicate glass that has properties that enable the glass to be drawn as microsheet, that has a transmission greater than 90% at wavelengths between 380 and 1200 nm., that has a sharp cutoff between 310 and 370 nm., that has a transmission no greater than 50% at 330 nm., and that has a composition consisting essentially of, expressed in terms of weight percent on an oxide basis:
- SiO2 59-69 ZnO 6.5-8.5 B2O3 8.5-14 CeO2 0.25-3 Al2O3 2-2.5 TiO2 0-1 Na2O 5.5-12.5 CeO2 + TiO2 0.5-3.5 K2O 0-8 Sb2O3 0-0.5.
A solar cell having, as a component, a microsheet cover glass having a transmission greater than 90% at wavelengths between 380 and 1200 nm., a sharp cutoff between 310 and 370 nm., a transmittance no greater than 50% at 330 nm., and a composition consisting essentially of, expressed in terms of weight percent, on an oxide basis:
- SiO2 59-69 ZnO 6.5-8.5 B2O3 8.5-14 CeO2 0.25-3 Al2O3 2-2.5 TiO2 0-1 Na2O 5.5-12.5 CeO2 + TiO2 0.5-3.5 K2O 0-8 Sb2O3 0-0.5.
Dependencies are inferred from the claim text.