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US 2017/0287715 A1Published application
Aluminum oxide passivation for solar cells
AssigneeSolexel, Inc.
InventorsHeather Deshazer, Virendra V. Rana, Sean M. Seutter, Pawan Kapur, Mehrdad M. Moslehi, Solene Coutant
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Abstract
The present application provides effective and efficient structures and methods for the formation of solar cell base and emitter regions and passivation layers using laser processing. Laser absorbent passivation materials are formed on a solar cell substrate and patterned using laser ablation to form base and emitter regions.
Claims6
A method for processing a solar cell, comprising:
- depositing an oxygen ric doped laser absorbent passivation layer on an n-type surface of a solar cell substrate, said doped laser absorbent passivation layer having a doping opposite said n-type surface of said solar cell substrate;
- patterning said doped laser absorbent passivation layer using laser ablation;
- and
- annealing said solar cell to form diffused solar cell doped regions corresponding to said doped laser absorbent passivation layer.
1 more element
Dependencies are inferred from the claim text.