title: Intrinsic Transparent Conductors without Doping.
abstract: Transparent conductors (TCs) combine the usually contraindicated properties of electrical conductivity with optical transparency and are generally made by starting with a transparent insulator and making it conductive via heavy doping, an approach that generally faces severe "doping bottlenecks." We propose a different idea for TC design-starting with a metallic conductor and designing transparency by control of intrinsic interband transitions and intraband plasmonic frequency. We identify the specific design principles for three such prototypical intrinsic TC classes and then search computationally for materials that satisfy them. Remarkably, one of the intrinsic TC, Ag(3)Al(22)O(34), is predicted also to be a prototype 3D compounds that manifest natural 2D electron gas regions with very high electron density and conductivity.
authors.affiliation: Renewable and Sustainable Energy Institute, University of Colorado, Boulder, Colorado 80309, USA.
authors.forename: Xiuwen
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Renewable and Sustainable Energy Institute, University of Colorado, Boulder, Colorado 80309, USA.
authors.forename: Lijun
authors.initials: L
authors.lastname: Zhang
authors.affiliation: National Renewable Energy Laboratory, Golden, Colorado 80401, USA.
authors.forename: John D
authors.initials: JD
authors.lastname: Perkins
authors.affiliation: Renewable and Sustainable Energy Institute, University of Colorado, Boulder, Colorado 80309, USA.
authors.forename: Alex
authors.initials: A
authors.lastname: Zunger