Jet-nebulizer-spray coated copper zinc tin sulphide film for low cost platinum-free electrocatalyst in solar cells

D. David Kirubakaran, Sudhagar Pitchaimuthu, C. Ravi Dhas, Prabhakaran Selvaraj, S. Zh Karazhanov, Senthilarasu Sundaram

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

The copper zinc tin sulphide (CZTS) alloy is a promising p-type earth abundant alloy that received profound attention as an electron driven dark catalyst in electrocatalytic reduction reaction. We report about fabrication of p-type CZTS film with the jet nebulizer assisted spray (JNS) coating technique. The electrocatalytic activity of the as-synthesized CZTS electrode is studied at tri-iodide reduction reactions and is tested as Pt-free electrocatalyst in proof-of-concept type device. Under identical experimental conditions the CZTS counter electrode- and platinum electrode-based dye-sensitised solar cells result similar photocurrent density of ∼10 mA cm−2. These results encourage applications of the aero-sol controlled spray coated CZTS films as the Pt-free electrocatalyst, where reduction reaction takes a key role in energy conversion and biosensing.

Original languageEnglish
Pages (from-to)122-125
Number of pages4
JournalMaterials Letters
Volume220
Early online date1 Mar 2018
DOIs
Publication statusPublished - 1 Jun 2018

Keywords

  • CZTS
  • Dye-sensitized solar cells
  • Jet-nebulizer spray
  • Pt-free electrocatalyst
  • Tri-iodide reduction

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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