Glass substrates for high temperature applications
AssigneeCardinal FG Company
InventorsBrad HICKMAN, Patrick D. WATSON, Kelly J. BUSCH
Life of this patent
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Abstract
A glass substrate may be processed at high temperatures without substantially losing its thermal-strengthening characteristics or deforming. In some examples, the glass substrate exhibits an increased annealing point and/or softening point as compared to standard glass substrates. In some examples, the glass substrate includes a relatively high amount of CaO and/or MgO, and/or a relatively low amount of Na2O, as compared to traditional soda-lime-silica-based glass. Depending on the composition, the glass substrate may be useful, for example, to fabricate a glass-based solar cell that mates two substantially flat glass substrates together.
Claims20
A method comprising:
- providing a first substrate and a second substrate, each comprising the following components:
- SiO2
- 67 wt %-75 wt %
- CaO + MgO
- greater than 13 wt %
- Na2O
- 10 wt %-14.5 wt %
- the first and second substrates having an annealing point greater than approximately 554 degrees Celsius, and at least one of the first and second substrates having a photovoltaic coating applied thereon;
- and
- positioning the first substrate parallel to the second substrate with a separation gap between the first substrate and the second substrate of less than about 0.09 inches, the photovoltaic coating facing the separation gap.
A photovoltaic panel, comprising:
- a first substrate and a second substrate, each comprising the following components:
- SiO2
- 67 wt %-75 wt %
- CaO + MgO
- greater than 13 wt %
- Na2O
- 10 wt %-14.5 wt %
- the first and second substrates having an annealing point greater than approximately 554 degrees Celsius, and at least one of the first and second substrates having a photovoltaic coating applied thereon;
- and
- the first substrate being parallel to the second substrate with a separation gap between the first substrate and the second substrate of less than about 0.09 inches, the photovoltaic coating facing the separation gap.
Dependencies are inferred from the claim text.