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DOPANT COMPOSITIONS AND THE METHOD OF MAKING TO FORM DOPED REGIONS IN SEMICONDUCTOR MATERIALS

United States Patent Application

20130178011
A1
View the Complete Application at the US Patent & Trademark Office
National Renewable Energy Laboratory - Visit the NREL Technology Transfer Website
Dopant compositions comprising a semiconductor material are described. Examples of dopant compositions comprise a particulate dopant component and a liquid or paste component, or comprise a dopant component and a particulate silicon component. Methods of forming doped regions in a semiconductor substrate material using the dopant compositions are described. A dopant composition including a dopant particulate component is described as a dopant source in a method for the formation of radiation-fired or radiation-doped contacts, for example in the formation of laser-fired or laser-doped contacts. Examples of the method find application in relation to the manufacture of photovoltaic cells. The use of doped particulate material, for example a composition including doped silicon powder, may reduce the likelihood of damage to the substrate.
Ginley, David S. (Evergreen, CO), Curtis, Calvin J. (Lakewood, CO), van Hest, Marinus Franciscus Antonius Maria (Lakewood, CO), Platt, Heather A. S. (Golden, CO), Miedaner, Alexander (Boulder, CO), Carlson, David E. (Williamsburg, VA), Bennett, Murry S. (Frederick, MD), Ren, Wensheng (Denver, CO)
ALLIANCE FOR SUSTAINABLE ENERGY, LLC (Golden CO)
13/ 598,170
August 29, 2012
CONTRACTUAL ORIGIN [0002] 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, the Manager and Operator of the National Renewable Energy Laboratory.