Parameters influencing the growth of ZnO nanowires as efficient low temperature flexible perovskite-based solar cells

Alex Dymshits, Lior Iagher, Lioz Etgar*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

Hybrid organic-inorganic perovskite has proved to be a superior material for photovoltaic solar cells. In this work we investigate the parameters influencing the growth of ZnO nanowires (NWs) for use as an efficient low temperature photoanode in perovskite-based solar cells. The structure of the solar cell is FTO (SnO2:F)-glass (or PET-ITO (In2O3· (SnO2) (ITO)) on, polyethylene terephthalate (PET)/ZnAc seed layer/ZnO NWs/CH3NH3PbI3/Spiro-OMeTAD/Au. The influence of the growth rate and the diameter of the ZnO NWs on the photovoltaic performance were carefully studied. The ZnO NWs perovskite-based solar cell demonstrates impressive power conversion efficiency of 9.06% on a rigid substrate with current density over 21 mA/cm2. In addition, we successfully fabricated flexible perovskite solar cells while maintaining all fabrication processes at low temperature, achieving power conversion efficiency of 6.4% with excellent stability for over 75 bending cycles.

Original languageAmerican English
Article number60
JournalMaterials
Volume9
Issue number1
DOIs
StatePublished - 2016

Bibliographical note

Publisher Copyright:
© 2015 by the authors.

Keywords

  • Flexible solar cells
  • Growth rate
  • Perovskite
  • Precursor concentration
  • ZnO nanowires

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