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Method for forming metal contacts

United States Patent

September 17, 2013
View the Complete Patent at the US Patent & Trademark Office
National Renewable Energy Laboratory - Visit the NREL Technology Transfer Website
Methods of forming metal contacts with metal inks in the manufacture of photovoltaic devices are disclosed. The metal inks are selectively deposited on semiconductor coatings by inkjet and aerosol apparatus. The composite is heated to selective temperatures where the metal inks burn through the coating to form an electrical contact with the semiconductor. Metal layers are then deposited on the electrical contacts by light induced or light assisted plating.
Reddington; Erik (Ashland, MA), Sutter; Thomas C. (Holden, MA), Bu; Lujia (Holden, MA), Cannon; Alexandra (Framingham, MA), Habas; Susan E. (Boulder, CO), Curtis; Calvin J. (Lakewood, CO), Miedaner; Alexander (Boulder, CO), Ginley; David S. (Evergreen, CO), Van Hest; Marinus Franciscus Antonius Maria (Lakewood, CO)
Rohm and Haas Electronic Materials LLC (Marlborough, MA), Alliance for Sustainable Energy, LLC (Golden, CO)
13/ 273,588
October 14, 2011
The United States Government has rights in this invention under Contract No. DE-AC36-08GO28308 between the United States Department of Energy and the Alliance for Sustainable Energy, LLC as contract operator of the National Renewable Energy Laboratory.