Research on high-efficiency, stacked, multi-junction, amorphous silicon alloy thin-film solar cell: Semiannual subcontract report; 15 October 1985 - 30 April 1986

Technical Report · Thu Jan 01 04:00:00 EST 1987

DOI:https://doi.org/10.2172/6773715· OSTI ID:6773715

Dalal, V.

This report describes work performed to investigate and develop high-efficiency, multijunction amorphous silicon alloy thin-film solar cells. Specifically, a-Si:H and a-(Si,Ge):H alloys have been deposited and characterized chemically, structurally, optically, and electronically. Also, a-Si:H/a-(Si,Ge):H high-efficiency tandem solar cells have been fabricated and analyzed. In this contract period, a plasma-isolated, two-chamber, hot-wall glow discharge reactor began operating. Good quality a-Si:H layers were grown. A chemical vapor deposition (CVD) pyrolytic reactor for depositing SnO/sub 2/:F layers on glass was also used. Single-junction a-Si:H cells up to 9.1% in efficiency were fabricated, as were multijunction a-Si:H/a-(Si,Ge):H cells up to 7.2% in efficiency.

• Research Organization: Spire Corp., Bedford, MA (USA); Solar Energy Research Inst., Golden, CO (USA)
• DOE Contract Number: AC02-83CH10093
• OSTI ID: 6773715
• Report Number(s): SERI/STR-211-3104; ON: DE87001142
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
AMORPHOUS STATE
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
DEPOSITION
DIRECT ENERGY CONVERTERS
EFFICIENCY
ELEMENTS
EQUIPMENT
FABRICATION
FILMS
MATERIALS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
RESEARCH PROGRAMS
SEMICONDUCTOR MATERIALS
SEMIMETALS
SILICON
SILICON SOLAR CELLS
SOLAR CELLS
SOLAR EQUIPMENT
SURFACE COATING
THIN FILMS