Research on Stable, High-Efficiency Amorphous Silicon Multijunction Modules: Semiannual Subcontract Report, 1 March 1993 - 30 November 1993
This report describes the progress made during the first half of Phase III of the R&D program to obtain high-efficiency amorphous silicon alloy multijunction modules. The highlight of the work includes (1) demonstration of the world`s highest initial module efficiency (area of 0.09 m{sup 2}) of 11.4% as confirmed by NREL, and (2) demonstration of stable module efficiency of 9.5% after 1-sun light soaking for 1000 h at 50{degrees}C. In addition, fundamental studies were carried out to improve material properties of the component cells of the multijunction structure and to understand the optical losses associated with the back reflector.
- Research Organization:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- DOE Contract Number:
- AC36-08GO28308
- OSTI ID:
- 10131229
- Report Number(s):
- NREL/TP-411-6396; ON: DE94000298; BR: WM1020000
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
140501
360606
AMORPHOUS STATE
CURRENT DENSITY
EFFICIENCY
ELECTRICAL PROPERTIES
GERMANIUM ALLOYS
PHOTOVOLTAIC CONVERSION
PHYSICAL PROPERTIES
PROGRESS REPORT
SEMICONDUCTOR MATERIALS
SILICON ALLOYS
SILICON SOLAR CELLS
SOLAR CELL ARRAYS
SPECTRAL RESPONSE
STAINLESS STEELS
SUBSTRATES
amorphous silicon
high efficiency
modules
multijunction
photovoltaics
solar cells
140501
360606
AMORPHOUS STATE
CURRENT DENSITY
EFFICIENCY
ELECTRICAL PROPERTIES
GERMANIUM ALLOYS
PHOTOVOLTAIC CONVERSION
PHYSICAL PROPERTIES
PROGRESS REPORT
SEMICONDUCTOR MATERIALS
SILICON ALLOYS
SILICON SOLAR CELLS
SOLAR CELL ARRAYS
SPECTRAL RESPONSE
STAINLESS STEELS
SUBSTRATES
amorphous silicon
high efficiency
modules
multijunction
photovoltaics
solar cells