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Surface passivation for CdTe devices

United States Patent

9,722,111
August 1, 2017
View the Complete Patent at the US Patent & Trademark Office
National Renewable Energy Laboratory - Visit the NREL Technology Transfer Website
Wet Chemical Surface Passivation Treatments for CdTe
In one embodiment, a method for surface passivation for CdTe devices is provided. The method includes adjusting a stoichiometry of a surface of a CdTe material layer such that the surface becomes at least one of stoichiometric or Cd-rich; and reconstructing a crystalline lattice at the surface of the CdTe material layer by annealing the adjusted surface.
Reese; Matthew O. (Golden, CO), Perkins; Craig L. (Golden, CO), Burst; James M. (Lakewood, CO), Gessert; Timothy A. (Conifer, CO), Barnes; Teresa M. (Evergreen, CO), Metzger; Wyatt K. (Louisville, CO)
Alliance for Sustainable Energy, LLC (Golden, CO)
14/ 615,282
20150221812
February 5, 2015
CONTRACTUAL ORIGIN 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.