Thin films containing a transparent conducting oxide and a high permittivity material are disclosed. Exemplary thin films may exhibit increased transmission in the visible-to-near infrared (vis-NIR) spectrum without a decrease in electrical conductivity compared to the thin film without the high permittivity material. Methods for making thin films having enhanced optical properties without substantially decreased electrical quality are also disclosed.
 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.