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Title: Perspective: Maintaining surface-phase purity is key to efficient open air fabricated cuprous oxide solar cells

Electrochemically deposited Cu{sub 2}O solar cells are receiving growing attention owing to a recent doubling in efficiency. This was enabled by the controlled chemical environment used in depositing doped ZnO layers by atomic layer deposition, which is not well suited to large-scale industrial production. While open air fabrication with atmospheric pressure spatial atomic layer deposition overcomes this limitation, we find that this approach is limited by an inability to remove the detrimental CuO layer that forms on the Cu{sub 2}O surface. Herein, we propose strategies for achieving efficiencies in atmospherically processed cells that are equivalent to the high values achieved in vacuum processed cells.
Authors:
; ;  [1] ; ;  [2] ;  [3] ;  [4] ;  [5]
  1. Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS (United Kingdom)
  2. Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
  3. Electrical Engineering Division, Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA (United Kingdom)
  4. Department of Physics, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE (United Kingdom)
  5. (United Kingdom)
Publication Date:
OSTI Identifier:
22415249
Resource Type:
Journal Article
Resource Relation:
Journal Name: APL materials; Journal Volume: 3; Journal Issue: 2; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COPPER OXIDES; DOPED MATERIALS; ELECTROCHEMISTRY; ENERGY EFFICIENCY; FABRICATION; IMPURITIES; LAYERS; SOLAR CELLS; SURFACES; ZINC OXIDES