Manufacturing semiconductor-based multi-junction photovoltaic devices

US8951827B2 · kind B2 · utility

Assignee

• EpiWorks, Inc. · US

Inventors

• David Ahmari · Champaign, US
• Swee Lim · San Jose, US
• Shiva Rai · Champaign, US
• David Forbes · Oregon, US

Key dates

• Filing date: Jun 21, 2013
• Grant date: Feb 10, 2015
• Expiry date: Jun 21, 2033

Classification

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

Abstract

Manufacture of multi-junction solar cells, and devices thereof, are disclosed. The architectures are also adapted to provide for a more uniform and consistent fabrication of the solar cell structures, leading to improved yields and lower costs. Certain solar cells may further include one or more compositional gradients of one or more semiconductor elements in one or more semiconductor layers, resulting in a more optimal solar cell device.