Nanohole electrodes useful in opto-electronic devices, and in particular, organic photovoltaics devices incorporating nanohole electrodes, are disclosed. An exemplary embodiment includes a photovoltaic device with a first electrode comprising a nanohole film, a second electrode, and an active layer located between the electrodes. Methods of producing a nanostructured electrode are also provided.
 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, manager and operator of the National Renewable Energy Laboratory.