A comparative study of buried contact and screen printed polycrystalline silicon solar cells with a mechanically V-grooved surface texturization
- Univ. of Konstanz (Germany). Faculty of Physics
- IMEC, Leuven (Belgium)
The aim of this work was to study buried contact and screen printed metallization techniques for polycrystalline silicon solar cells with a mechanical surface texturization. The application of a buried contact front metallization to V-grooved silicon substrates had to be optimized. For contact groove formation a dicing saw was used equipped with 15 {micro}m thin dicing blades. Commercially available Ni and Cu plating solutions were applied for cell metallization. Buried contact and screen printed polycrystalline silicon solar cells with and without a mechanically V-grooved front texturization were processed by using P{sub 2}O{sub 5} and POCl{sub 3} emitter diffusion as well as a dry silicon dioxide in combination with PECVD silicon nitride cell passivation. Details of the optimization procedure of both metallization schemes on V-grooved cell surfaces will be presented. Problems occurring during the implementation of the buried contact approach within the solar cell process are discussed.
- OSTI ID:
- 191070
- Report Number(s):
- CONF-941203--; ISBN 0-7803-1459-X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
COPPER
CURRENT DENSITY
DOPED MATERIALS
EFFICIENCY
ELECTRIC CONTACTS
ELECTRIC POTENTIAL
EXPERIMENTAL DATA
FABRICATION
FILL FACTORS
NICKEL
PERFORMANCE
PHOSPHORUS
PLATING
SCANNING ELECTRON MICROSCOPY
SCREEN PRINTING
SILICON NITRIDES
SILICON OXIDES
SILICON SOLAR CELLS
SURFACE COATING
TEXTURE