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US 12,195,879 B2Granted
Extreme large grain (1 mm) lateral growth of Cd(Se,Te) alloy thin films by reactive anneals
AssigneeAlliance for Sustainable Energy, LLC
InventorDavid Scott Albin
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Abstract
Disclosed herein are compositions and methods for making polycrystalline thin films having very large grains sizes and exhibiting improved properties over existing thin films.
Claims20
A method for making at least one polycrystalline CdSexTe1-x alloy film, comprising growing at least one CdSexTe1-x alloy film by liquid phase enhanced grain growth, wherein:
- 0≤x≤1,
- the CdSexTe1-x alloy film comprises individual grains of about 100 um to about 1000 um in length and/or width, and
- a median grain-size to thickness ratio of the film is greater than 10.
A polycrystalline CdSexTe1-x alloy film, where 0≤x≤1, comprising individual grains of about 100 μm to about 1000 μm in length or width.
Dependencies are inferred from the claim text.