Stacked integrated multi-junction solar cell

US10490683B2 · kind B2 · utility

Assignee

• Azur Space Solar Power GmbH · DE

Inventors

• Wolfgang GUTER · Stuttgart, DE
• Gerhard Strobl · Stuttgart, DE
• Frank Dimroth · Gundelfingen, DE
• Alexandre Walker · Ottawa, CA

Key dates

• Filing date: Oct 23, 2015
• Grant date: Nov 26, 2019
• Expiry date: Oct 23, 2035

Classification

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

Abstract

A stacked integrated multi-junction solar cell, having a first subcell, whereby the first subcell has a layer of an InGaP compound with a first lattice constant and a first band gap energy, and the thickness of the layer is greater than 100 nm and the layer is formed as part of an emitter and/or as part of the base and/or as part of the space charge region lying between the emitter and base, and a second subcell with a second lattice constant and a second band gap energy, and a third subcell with a third lattice constant and a third band gap energy, and a fourth subcell with a fourth lattice constant and a fourth band gap energy, and a region with a wafer bond is formed between two subcells.