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US 9,543,457 B2Granted
Method and system for manufacturing back contacts of photovoltaic devices
AssigneeFirst Solar, Inc.
InventorCharles Edward Wickersham
Life of this patent
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Abstract
A method for manufacturing a photovoltaic device includes a step of depositing one of an amorphous layer of ZnTe and a multilayer stack of Zn and Te adjacent a semiconductor layer. The one of the amorphous layer and the multilayer stack is then subjected to an energy impulse at a temperature equal to or greater than its critical temperature. The energy impulse results in an explosive crystallization to form a polycrystalline layer of ZnTe from the one of the amorphous layer and the multilayer stack.
Claims14
A method for manufacturing a photovoltaic device, the method comprising the steps of:
- depositing one of (a) an amorphous layer including amorphous ZnTe and (b) a multilayer stack including alternating layers of Zn and Te, adjacent a semiconductor layer;
- and
- subjecting the one of (a) and (b) to an energy impulse at a temperature equal to or greater than its critical temperature for explosive crystallization to cause the explosive crystallization and form a polycrystalline layer.
Dependencies are inferred from the claim text.