RECEIVER STRUCTURE FOR PHOTOVOLTAIC CONCENTRATOR SYSTEM COMPRISING GROUP III-V COMPOUND SEMICONDUCTOR SOLAR CELL

• Main Authors: BUIE DAMIEN, BLUMENFELD PHILIP, FORESI JAMES, NAGYVARY JOHN, HOFFMANN W RICHARD JR, SEEL STEVE
• Format: Patent
• Language: English
• Published: 06.01.2011
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

PROBLEM TO BE SOLVED: To provide a receiver structure for a photovoltaic concentrator system comprising compound semiconductor solar cells, wherein the receiver structure is designed to gather concentrated solar energy toward upper surfaces of the solar cells, and has high energy efficiency.SOLUTION: The receiver structure 100 for use in a concentrating photovoltaic system includes a ceramic substrate 126, a III-V compound semiconductor solar cell 102, and a heat sink 120. The ceramic substrate has a first metallized surface and an opposing second metallized surface. The first metallized surface of the ceramic substrate has a plurality of separated conductive regions. The solar cell has a conductive first surface connected to a first one of the conductive regions of the ceramic substrate and an opposing second surface having a conductive contact connected to a second one of the conductive regions. The heat sink is bonded to the second metallized surface of the ceramic substrate with a thermally conductive attach media, such as a metal-filled epoxy adhesive.