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Research on high efficiency cascade solar cells

Technical Report ·
OSTI ID:6843890
; ; ; ; ;
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

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation & Manufacture
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ANTIMONY COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
CONCENTRATOR SOLAR CELLS
CRYSTAL GROWTH
DEPOSITION
DIRECT ENERGY CONVERTERS
EFFICIENCY
ELECTRICAL PROPERTIES
ENERGY GAP
EPITAXY
EQUIPMENT
FABRICATION
FILL FACTORS
GALLIUM ARSENIDE SOLAR CELLS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
GALLIUM PHOSPHIDE SOLAR CELLS
GALLIUM PHOSPHIDES
GRADED BAND GAPS
INDIUM COMPOUNDS
INDIUM PHOSPHIDES
JUNCTIONS
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
PNICTIDES
RESEARCH PROGRAMS
SEMICONDUCTOR JUNCTIONS
SOLAR CELLS
SOLAR EQUIPMENT
SPECTRAL RESPONSE
SUBSTRATES
SURFACE COATING