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METHODS FOR MAKING PEROVSKITE SOLAR CELLS HAVING IMPROVED HOLE-TRANSPORT LAYERS

United States Patent Application

20180005762
A1
View the Complete Application at the US Patent & Trademark Office
National Renewable Energy Laboratory - Visit the NREL Technology Transfer Website
An aspect of the present disclosure is a device that includes a first layer that includes a hole-transport material and an acid, where the first layer has a conductivity between 20 .mu.S/cm and 500 .mu.S/cm. In some embodiments of the present disclosure, the first layer may absorb light having a wavelength between 400 nm and 600 nm. In some embodiments of the present disclosure, the hole-transport material may include at least one of 2,2',7,7'-tetrakis(N,N-di-p-methoxyphenylamine)-9,9'-spirobifluorene (spiro-OMeTAD), a derivative of spiro-OMeTAD, poly(triarylamine), poly(3-hexylthiophene), and/or N,N'-bis(3-methylphenyl)-N,N'-diphenylbenzidine.
Zhu, Kai (Littleton, CO), Li, Zhen (Lakewood, CO), Sellinger, Alan (Golden, CO), Tinkham, Jonathan Scott (Denver, CO)
15/ 636,949
June 29, 2017
CONTRACTUAL ORIGIN [0002] The United States Government has rights in this disclosure 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.