4.5 Article

Improving Cu2ZnSnS4 (CZTS) solar cell performance by an ultrathin ZnO intermediate layer between CZTS absorber and Mo back contact

Journal

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
Volume 8, Issue 12, Pages 966-970

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssr.201409052

Keywords

Cu2ZnSnS4; solar cells; ZnO; thin films; molybdenium; back contacts

Funding

  1. Australian Government through Australian Renewable Energy Agency (ARENA)
  2. Australian Research Council (ARC)
  3. Guodian New Energy Technology Research Institute, Guodian China Corporation

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The effects of an ultrathin ZnO intermediate layer deposited at the CZTS/Mo interface on CZTS solar cell performance have been investigated in this work. The ZnO layer inhibits the generation of MoS2 layer and the formation of voids in the CZTS absorber. Consequently, the incorporation of this layer reduces the series resistance and increases the shunt resistance, which boosts photovoltaic conversion efficiency from 1.13% to 4.3%. (C) 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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