skip to main content

SciTech ConnectSciTech Connect

Title: Growth, disorder, and physical properties of ZnSnN{sub 2}

We examine ZnSnN{sub 2}, a member of the class of materials contemporarily termed “earth-abundant element semiconductors,” with an emphasis on evaluating its suitability for photovoltaic applications. It is predicted to crystallize in an orthorhombic lattice with an energy gap of 2 eV. Instead, using molecular beam epitaxy to deposit high-purity, single crystal as well as highly textured polycrystalline thin films, only a monoclinic structure is observed experimentally. Far from being detrimental, we demonstrate that the cation sublattice disorder which inhibits the orthorhombic lattice has a profound effect on the energy gap, obviating the need for alloying to match the solar spectrum.
Authors:
;  [1] ; ; ; ;  [2] ; ;  [3] ;  [4] ; ; ; ;  [5] ;  [1] ;  [6]
  1. Department of Physics, University at Buffalo, Buffalo, New York 14260 (United States)
  2. Stephenson Institute for Renewable Energy and Department of Physics, University of Liverpool, Liverpool L69 7ZF (United Kingdom)
  3. Department of Physics, Florida A and M University, Tallahassee, Florida 32307 (United States)
  4. University College London, Kathleen Lonsdale Materials Chemistry, Department of Chemistry, 20 Gordon Street, London WC1H 0AJ (United Kingdom)
  5. Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109 (United States)
  6. (United States)
Publication Date:
OSTI Identifier:
22218305
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 103; Journal Issue: 4; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CATIONS; ENERGY GAP; EV RANGE; FOURIER TRANSFORMATION; IMPURITIES; INFRARED SPECTRA; MOLECULAR BEAM EPITAXY; MONOCLINIC LATTICES; MONOCRYSTALS; ORTHORHOMBIC LATTICES; PHOTOVOLTAIC EFFECT; PHYSICAL PROPERTIES; POLYCRYSTALS; SEMICONDUCTOR MATERIALS; THIN FILMS; ULTRAVIOLET SPECTRA; VISIBLE SPECTRA