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United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
Methods for humidity-driven crystallization of hybrid perovskite films as well as the resulting hybrid perovskite films are provided. Hybrid perovskite films can be made by sequentially depositing respective layers of inorganic and organic hybrid perovskite precursors onto a substrate to form a hybrid perovskite film precursor. The hybrid perovskite film precursor can then be exposed to a humidified atmosphere so as to convert the inorganic and organic hybrid perovskite precursors to the hybrid perovskite. The processing desirably results in a void-free hybrid perovskite film. Humidity exposure processing methods can be the enabling step in the formation of large grain size (above 1 micrometer) for building vertical bulk-heterojunction structures through the infiltration of different media in vertical grain-boundaries.
GEOHEGAN, David Bruce (Knoxville, TN), KEUM, Jong Kahk (Knoxville, TN), POPLAWSKY, Jonathan D. (Knoxville, TN), XIAO, Kai (Knoxville, TN), YANG, Bin (Oak Ridge, TN), DYCK, Ondrej Edward (Knoxville, TN)
15/ 286,330
October 5, 2016
GOVERNMENT RIGHTS [0002] This invention was made with government support under Contract No. DE-AC05-00OR22725 awarded by the U.S. Department of Energy. The government has certain rights in the invention.