High-efficiency organometallic vapor phase epitaxy AlGaAs/GaAs monolithic cascade solar cell using metal interconnects

Journal Article · Wed Sep 15 00:00:00 EDT 1982 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.93592· OSTI ID:7151048

Ludowise, M J; LaRue, R A; Borden, P G; Gregory, P E; Dietze, W T

A two-junction solar cell has been fabricated using an Al/sub 0.30/Ga/sub 0.70/As (1.82 eV) tap cell and a GaAs (1.43 eV) bottom cell. A processed metal interconnect is used to connect the two cells together in series. An efficiency of 21.5% at 980 mW/cm/sup 2/ has been measured in a solar simulator with an open circuit voltage of 2.35 V, a short circuit current of 118.6 mA/cm/sup 2/, and a fill factor of 0.76. An efficiency of 22% has been measured under 130 AM3 sun in a solar tracking concentrator. Organometallic vapor phase epitaxy is used to grow the entire nine-layer device.

• Research Organization: Varian Associates, Incorporated, Corporate Solid State Laboratory, Palo Alto, California 94303
• OSTI ID: 7151048
• Journal Information: Appl. Phys. Lett.; (United States), Vol. 41:6
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
ALUMINIUM ARSENIDES
VAPOR PHASE EPITAXY
GALLIUM ARSENIDE SOLAR CELLS
EFFICIENCY
CASCADE SOLAR CELLS
CONNECTORS
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
EXPERIMENTAL DATA
FABRICATION
JUNCTIONS
METALS
ORGANOMETALLIC COMPOUNDS
SOLAR CONCENTRATORS
SOLAR SIMULATORS
VAPORS
ALUMINIUM COMPOUNDS
ANALOG SYSTEMS
ARSENIC COMPOUNDS
ARSENIDES
CONDUCTOR DEVICES
CURRENTS
DATA
DIRECT ENERGY CONVERTERS
ELECTRICAL EQUIPMENT
ELEMENTS
EPITAXY
EQUIPMENT
FLUIDS
FUNCTIONAL MODELS
GASES
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PNICTIDES
SIMULATORS
SOLAR CELLS
SOLAR EQUIPMENT
140501* - Solar Energy Conversion- Photovoltaic Conversion