Phase 2, Automated Array Assembly, Task IV Low-Cost Solar Array Project. Final report. [Verification of technological readiness]

Technical Report · Sun Oct 01 04:00:00 EDT 1978

DOI:https://doi.org/10.2172/5964636· OSTI ID:5964636

This contract was a process development effort to verify the technological readiness of a selected process sequence from the as-sawn Czochralski grown silicon wafers to the module assembly. The process investigated consisted of the following sequence: starting material: 3-inch as-sawn CZ silicon wafers; texture etching of silicon wafers using sodium hydroxide; junction formation by ion implantation of phosphorus; laser annealing of ion implanted wafers; screen printing of Ag, Ag-Al for ohmic contact; spraying of tantalum oxide AR coating; and assembly of modules using the LMSC module design, developed under the JPL Contract 954653, as baseline. This selected process sequence was evaluated for its technical potential of achieving the economic goals of the Low Cost Solar Array Project of $.50/watt for 500 megawatt/year production by 1986. Evaluation procedures and results are reported.

• Research Organization: Lockheed Missiles and Space Co., Inc., Sunnyvale, CA (USA)
• OSTI ID: 5964636
• Report Number(s): DOE/JPL/954898-4
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
ANNEALING
ANTIREFLECTION COATINGS
AUTOMATION
CHALCOGENIDES
COATINGS
CZOCHRALSKI METHOD
DEPOSITION
DIRECT ENERGY CONVERTERS
ECONOMICS
ELECTRIC CONTACTS
ELECTRICAL EQUIPMENT
EQUIPMENT
ETCHING
EVALUATION
FABRICATION
HEAT TREATMENTS
HEATING
ION IMPLANTATION
LASER-RADIATION HEATING
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PLASMA HEATING
PRODUCTION
SCREEN PRINTING
SILICON SOLAR CELLS
SOLAR CELLS
SPRAY COATING
SURFACE COATING
SURFACE FINISHING
TANTALUM COMPOUNDS
TANTALUM OXIDES
TRANSITION ELEMENT COMPOUNDS