New method of metallization for silicon solar cells. First quarterly report, December 15, 1978-March 31, 1979

Technical Report · Mon Jan 01 00:00:00 EST 1979

OSTI ID:5861944

Macha, M

The objective of this program is to develop a low-cost ohmic contact on silicon solar cells based on molybdenum tin metal system. The approach is based on the formulation of a screenable ink composed from molybdenum oxide and tin mixture. The first quarter of this program involved the study of the reduction of MoO/sub 3/ into Mo and the establishing of MoO/sub 3/:Sn ratio. Both tasks have been done in an experimental station constructed for this purpose. The results showed that molybdenum was formed from its oxide at 800/sup 0/C and improved in bonding to silicon at 900/sup 0/C. A 20% MoO/sub 3/-80% Sn mixture was converted into a metallic coating within this temperature range. The next quarter will be concerned with the formulation of screenable ink, calibration of a tube furnace for the firing cycle and evaluation of the metal contact on solar cell structures.

• Research Organization: SOL/LOS, Inc., Los Angeles, CA (USA)
• DOE Contract Number: NAS-7-100-955318
• OSTI ID: 5861944
• Report Number(s): DOE/JPL/955318-1
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
SILICON SOLAR CELLS
ELECTRIC CONTACTS
BONDING
COATINGS
COST
DATA
ELECTRIC CONDUCTIVITY
METALS
MOLYBDENUM
MOLYBDENUM OXIDES
SCREEN PRINTING
STABILITY
THERMAL EXPANSION
TIN
CHALCOGENIDES
DEPOSITION
DIRECT ENERGY CONVERTERS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELEMENTS
EQUIPMENT
EXPANSION
FABRICATION
INFORMATION
JOINING
MOLYBDENUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
REFRACTORY METALS
SOLAR CELLS
SURFACE COATING
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
140501* - Solar Energy Conversion- Photovoltaic Conversion