Jet-nebulizer-spray coated copper zinc tin sulphide film for low cost platinum-free electrocatalyst in solar cells
© 2018 Elsevier B.V. All rights reserved.
Reason for embargo
Under embargo until 1 March 2019 in compliance with publisher policy
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 mAcm-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.
RD thanks to UGC, India [F.No. 42-903/ 2013(SR). SZK acknowledges financial support from the Research Council of Norway through the New Indigo project 237643/E20. One of the lead authors S.P acknowledges Welsh Government and European Regional Development Fund (ERDF) for partial support of this project through Sêr Cymru II-Rising Star Fellowship program (80761-SU-102 (West)).
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