NON-CONTACTING BUS BARS FOR SOLAR CELLS AND METHODS OF MAKING NON-CONTACTING BUS BARS

NON-CONTACTING BUS BARS FOR SOLAR CELLS AND METHODS OF MAKING NON-CONTACTING BUS BARS

A photovoltaic module having non-contacting bus bars and methods of making non-contacting bus bars are disclosed. The fingers are screen printed on the substrate using a paste. The bus bar(s) can be formed over the fingers using a number of techniques that do not dissolve through the passivation lay...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: HIESLMAIR, HENRY
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
CURRENT COLLECTORS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
LINE CONNECTORS
REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION
SEMICONDUCTOR DEVICES
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:A photovoltaic module having non-contacting bus bars and methods of making non-contacting bus bars are disclosed. The fingers are screen printed on the substrate using a paste. The bus bar(s) can be formed over the fingers using a number of techniques that do not dissolve through the passivation layer of the substrate. The bus bar(s) can be screen printed over the fingers using a second paste that is more viscous and/or conductive than the first paste. The bus bar(s) can be a conductive trace that is deposited over the fingers. The bus bar(s) can be a metal wire coated with solder or paste that is positioned on the fingers. Metal plating techniques may also be used to thicken the fingers and/or bus bars. One or more doping steps may be used to form selective emitters under the fingers and bus bar.