High-efficiency AlGaAs/GaAs concentrator solar cells

Journal Article · Mon Jan 15 04:00:00 EST 1979 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.90708· OSTI ID:6617845

Sahai, R; Edwall, D D; Harris, Jr, J S

Efficiencies of 25% have been obtained with 1-cm-diam AlGaAs/GaAs heteroface concentrator solar cells utilizing an ultrathin AlGaAs window layer design. A low specific resistance (<0.005 ..cap omega.. cm/sup 2/) Ohmic contact is achieved by direct contact to the p-GaAs active layer. Liquid phase epitaxy has been developed to grow <500-A thick window layers on large-area (3.3 x 3.3 cm) GaAs substrates. Four 1-cm-diam cells are produced from each wafer and demonstrate the potential for larger-scale production.

• Research Organization: Rockwell International Science Center, Thousand Oaks, California 91360
• OSTI ID: 6617845
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 34:2; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
CONVERSION
DIRECT ENERGY CONVERTERS
EFFICIENCY
ELECTRIC CONTACTS
ELECTRICAL EQUIPMENT
ENERGY CONVERSION
EPITAXY
EQUIPMENT
FABRICATION
FILMS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
JUNCTION DIODES
PERFORMANCE
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHOTOVOLTAIC EFFECT
PNICTIDES
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SOLAR CELLS
SOLAR ENERGY CONVERSION