Fusion formable silica and sodium containing glasses
US8647995B2 · kind B2 · utility
7Cited by
19References
19Claims
0Family size
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Key dates
| Filing date | Jul 21, 2010 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Apr 4, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/543
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Sodium containing aluminosilicate and boroaluminosilicate glasses are described herein. The glasses can be used as substrates or superstrates for photovoltaic devices, for example, thin film photovoltaic devices such as CIGS photovoltaic devices. These glasses can be characterized as having strain points ≧535° C., for example, ≧570° C., thermal expansion coefficients of from 8 to 9 ppm/° C., as well as liquidus viscosities in excess of 50,000 poise. As such they are ideally suited for being formed into sheet by the fusion process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.