Research on high efficiency cascade solar cells
The objective of this research has been the continued development of the technology needed to fabricate two-junction cascade solar cells having conversion efficiencies of 30 percent or more under multisun illumination. Research has been carried out in a number of different III-V semiconductor materials systems that are potential candidates for a cascade solar cell design. Work has focused on the development of a compatible combination of materials required for the monolithic, multilayer structure using several different epitaxial growth techniques. Materials receiving principal attention during the past year have been GaA1As, GaInP, and GaA1AsSb for the high bandgap top cell and GaInAs, GaAsSb, and GaAs for the low bandgap bottom cell. Liquid phase, vapor phase, and organometallic-chemical vapor deposition growth techniques have been explored. Progress is detailed.
- Research Organization:
- Research Triangle Inst., Research Triangle Park, NC (USA); North Carolina State Univ., Raleigh (USA). Dept. of Electrical Engineering
- DOE Contract Number:
- AC02-77CH00178
- OSTI ID:
- 6843890
- Report Number(s):
- SERI/PR-8136-1-T1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
CONCENTRATOR SOLAR CELLS
GRADED BAND GAPS
RESEARCH PROGRAMS
GALLIUM ARSENIDE SOLAR CELLS
GALLIUM PHOSPHIDE SOLAR CELLS
ALUMINIUM ARSENIDES
ANTIMONY COMPOUNDS
CHEMICAL VAPOR DEPOSITION
CRYSTAL GROWTH
EFFICIENCY
ELECTRICAL PROPERTIES
ENERGY GAP
EPITAXY
FABRICATION
FILL FACTORS
GALLIUM ARSENIDES
GALLIUM PHOSPHIDES
INDIUM PHOSPHIDES
ORGANOMETALLIC COMPOUNDS
SEMICONDUCTOR JUNCTIONS
SPECTRAL RESPONSE
SUBSTRATES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
CHEMICAL COATING
DEPOSITION
DIRECT ENERGY CONVERTERS
EQUIPMENT
GALLIUM COMPOUNDS
INDIUM COMPOUNDS
JUNCTIONS
ORGANIC COMPOUNDS
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
PNICTIDES
SOLAR CELLS
SOLAR EQUIPMENT
SURFACE COATING
140501* - Solar Energy Conversion- Photovoltaic Conversion
360601 - Other Materials- Preparation & Manufacture