Inverted metamorphic multijunction solar cell with a single metamorphic layer

US10170656B2 · kind B2 · utility

Assignee

• SOLAERO TECHNOLOGIES CORP. · US

Inventors

• Fred Newman · Albuquerque, US
• Benjamin Cho · Albuquerque, US
• Mark A. Stan · Albuquerque, US
• Paul R. Sharps · Albuquerque, US

Key dates

• Filing date: Feb 17, 2015
• Grant date: Jan 1, 2019
• Expiry date: Mar 15, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50

Abstract

The present disclosure provides a multijunction solar cell that includes: a first sequence of layers of semiconductor material forming a first set of one or more solar subcells; a graded interlayer adjacent to said first sequence of layers; a second sequence of layers of semiconductor material forming a second set of one or more solar subcells; and a high band gap contact layer adjacent said second sequence of layers, wherein the high band gap contact layer is composed of p++ type InGaAlAs or InGaAs.