US Patent 9985152 Lattice matchable alloy for solar cells

Patent 9985152 was granted and assigned to Solar Junction on May, 2018 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Patent Applicant

Solar Junction

Current Assignee

Solar Junction

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

9985152

Date of Patent

May 29, 2018

Patent Application Number

15391659

Date Filed

December 27, 2016

Patent Primary Examiner

‌

Matthew T Martin

Patent abstract

An alloy composition for a subcell of a solar cell is provided that has a bandgap of at least 0.9 eV, namely, Ga1-xInxNyAs1-y-zSbz with a low antimony (Sb) content and with enhanced indium (In) content and enhanced nitrogen (N) content, achieving substantial lattice matching to GaAs and Ge substrates and providing both high short circuit currents and high open circuit voltages in GaInNAsSb subcells for multijunction solar cells. The composition ranges for Ga1-xInxNyAs1-y-zSbz are 0.07≤x≤0.18, 0.025≤y≤0.04 and 0.001≤z≤0.03.