Solexel, Inc.

JianJun Liang

Mehrdad M Moslehi

Virendra V Rana

Pranav Anbalagan

A method for making a back contact solar cell. Base isolation regions are formed in a crystalline silicon back contact solar cell substrate having a substrate thickness in the range of approximately 1 micron to 100 microns. Pulsed laser ablation of a substance on the crystalline silicon back contact solar cell substrate is performed to form base openings, wherein the substance is at least one of silicon oxide, silicon nitride, aluminum oxide, silicon oxynitride, or silicon carbide. Emitter regions are selectively doped and base regions are selectively doped. Contact openings are formed for the selectively doped base regions and the selectively doped emitter regions. Metallization is formed on the selectively doped base regions and the selectively doped emitter regions.

Growing community of inventors

Milpitas, CA, United States of America

JianJun Liang