Research on high-efficiency, stacked, multijunction, amorphous silicon alloy thin-film solar cells: Final subcontract report, 11 October 1983-30 October 1986

Technical Report · Thu Oct 01 04:00:00 EDT 1987

DOI:https://doi.org/10.2172/5493723· OSTI ID:5493723

Bragagnolo, J.

This report covers the third year of a three-year project to develop high-efficiency, stable, multijunction amorphous silicon alloy solar cells. It describes new deposition techniques to obtain pinhole-free, a-Si:H alloy films by avoiding dust formation in the plasma; the deposition of low-absorptance, textured SnO/sub 2/ layers by thermal CVD of Sn(CH/sub 3/)/sub 4/; a more stable, high-reflectance Ti/Ag back contact; the application of the new deposition techniques to achieve efficiencies of 10.5%, 10.1%, and 9.4% for a-Si:H p-i-n devices; the development of a-(Si,Ge):H cells with efficiencies from 5.4% for a-(Si,Ge):H cells to 7.5% for graded-bandgap cells; and the development of a-Si/a-(Si,Ge) tandem cells with 6.5% and 7.2% efficiencies. 18 refs., 60 figs., 49 tabs.

• Research Organization: Spire Corp., Bedford, MA (USA)
• DOE Contract Number: AC02-83CH10093
• OSTI ID: 5493723
• Report Number(s): SERI/STR-211-3231; ON: DE88001108
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
CHALCOGENIDES
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
DEPOSITION
DIRECT ENERGY CONVERTERS
DOCUMENT TYPES
EFFICIENCY
EQUIPMENT
FABRICATION
FILMS
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PROGRESS REPORT
RESEARCH PROGRAMS
SILICON SOLAR CELLS
SOLAR CELLS
SOLAR EQUIPMENT
SURFACE COATING
TESTING
THIN FILMS
TIN COMPOUNDS
TIN OXIDES