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Cu2ZnSnS4, a fascinating counter electrode for TiO2-free dye-sensitized solar cells

Roy, Anurag; Sundaram, Senthilarasu; Mallick, Tapas K.


Anurag Roy

Tapas K. Mallick


Since innovation, different dye-sensitized solar cells (DSSCs) have endeavored with additional components to escalate the efficiency, cost-effectiveness and long-term stability. Various approaches have been executed to reduce the amount of costly platinum (Pt) used in DSSCs and/or to explore cheaper alternatives to Pt. In this work, cheaper elements based quaternary chalcogenide alloy; Cu2ZnSnS4 (CZTS) has been projected as a prominent counter electrode (CE) candidate to Pt in DSSCs. The CZTS thin film has been developed by an in-situ synthesis employing a hydrothermal technique and further evaluating various physicochemical characterization. Our results manifest that using the CZTS CE, a power conversion efficiency (PCE) of 4.3 % was exhibited for TiO2 based photoanode. The highest PCE of 6.5 % was achieved for BaSnO3 based photoanode, a promising alternative oxide to TiO2 photoanode. This work further signifies a unique combination of newly developed BaSnO3(BSO)-CZTS DSSCs, could be a promising competitor to TiO2-Pt DSSCs.

Journal Article Type Article
Acceptance Date Feb 1, 2021
Online Publication Date Feb 15, 2021
Publication Date 2021-02
Deposit Date Mar 12, 2023
Journal ChemistrySelect
Print ISSN 2365-6549
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 6
Issue 7
Pages 1541-1547
Keywords Alloys, Counter Electrode, Dye-sensitized Solar Cell, Materials Science, Platinum Free