Methods for fabricating thin film III-V compound solar cell

Batteries: thermoelectric and photoelectric – Photoelectric – Cells

Reexamination Certificate

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C438S074000, C136S257000, C136S262000, C136S261000

Reexamination Certificate

active

07994419

ABSTRACT:
The present invention utilizes epitaxial lift-off in which a sacrificial layer is included in the epitaxial growth between the substrate and a thin film III-V compound solar cell. To provide support for the thin film III-V compound solar cell in absence of the substrate, a backing layer is applied to a surface of the thin film III-V compound solar cell before it is separated from the substrate. To separate the thin film III-V compound solar cell from the substrate, the sacrificial layer is removed as part of the epitaxial lift-off. Once the substrate is separated from the thin film III-V compound solar cell, the substrate may then be reused in the formation of another thin film III-V compound solar cell.

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