Laser-assisted solar cell metallization processing. Quarterly report, March 13-June 12, 1984

Technical Report · Mon Aug 20 00:00:00 EDT 1984

DOI:https://doi.org/10.2172/6519780· OSTI ID:6519780

Dutta, S.; McMullin, P. G.

Laser-assisted processing techniques, utilized to produce fine, metal grid patterns for high-efficiency solar cells, are being investigated, developed, and characterized. The work performed in the third quarter of this contract is detailed here. A preliminary economic evaluation has yielded the conclusion that laser-assisted pyrolysis of spun-on silver neodecanoate is the most promising of all the metallization techniques being investigated in this contract. Early adhesion problems have been solved by optimizing deposition parameters. Linewidth studies have been carried out as a function of laser power, scan speed, and film thickness. Preliminary solar cells have been fabricated and characterized using this metallization scheme. Silver neodecanoate films have also been decomposed using a pulsed uv laser and metal mask. A detailed study of the various models of localized surface temperature rise in silicon due to laser heating has been carried out. A review of this study and calculations of the silicon temperature rise resulting in decomposition of the spun-on silver neodecanoate are presented here.

• Research Organization: Westinghouse Research and Development Center, Pittsburgh, PA (USA)
• DOE Contract Number: NAS-7-100-956615
• OSTI ID: 6519780
• Report Number(s): DOE/JPL/956615-84/3; ON: DE85001706
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
CHEMICAL REACTIONS
DECOMPOSITION
DIRECT ENERGY CONVERTERS
ELECTRIC CONTACTS
ELECTRICAL EQUIPMENT
EQUIPMENT
HEATING
LASER-RADIATION HEATING
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PLASMA HEATING
PYROLYSIS
SILICON SOLAR CELLS
SILVER COMPOUNDS
SOLAR CELLS
SOLAR EQUIPMENT
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS