Comparative performance of single and binary metal selenides in dye-sensitized solar cells

Citation

Najihah, M.Z. and Saaid, Farish Irfal and Noor, I.M. and Woo, H.J. and Hisam, R. and Winie, Tan (2024) Comparative performance of single and binary metal selenides in dye-sensitized solar cells. Journal of Solid State Electrochemistry, 28 (8). pp. 2703-2713. ISSN 1432-8488; eISSN: 1433-0768 (In Press)

Abstract

Iron selenide (FeSe2), cobalt selenide (Co3Se4), and iron cobalt selenide (FeCo2Se4) have been synthesized via a two-step hydrothermal process. The formation of FeSe2, Co3Se4, and FeCo2Se4 has been proven by sample characterization to support their catalytic activity as the counter electrodes for dye-sensitized solar cells (DSSCs). The poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP)/propylene carbonate (PC)/1,2-dimethoxyethane (DME)/1-methyl-3-propyl imidazolium iodide (MPII)/sodium iodide (NaI)/iodine (I2) gel electrolytes were assembled into DSSCs with FeCo2Se4, FeSe2, Co3Se4, or platinum (Pt) as the counter electrode. The DSSC with FeCo2Se4 counter electrode shows an efficiency of 8.55, whereas Pt counter electrode shows an efficiency of 7.06. The highest performance of DSSC achieved with FeCo2Se4 can be attributed to its highest surface area and pore volume. Hence, FeCo2Se4 can be used as a Pt-free counter electrode for high-performance DSSCs.

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Additional Metadata

Item Type:	Article
Divisions:	Centre of Foundation Studies for Agricultural Science
DOI Number:	https://doi.org/10.1007/s10008-024-05835-4
Publisher:	Springer Science and Business Media Deutschland GmbH
Keywords:	Catalyst activity; Cobalt compounds; Dye-sensitized solar cells; Efficiency; Electrodes; Fluorine compounds; Iodine compounds; Iron compounds; Platinum; Platinum compounds; Solid electrolytes; Binary metals; Comparative performance; Counter electrodes; Dye- sensitized solar cells; Performance; Poly(vinylidene fluoride-co-hexafluoropropylene); Propylene carbonate; Selenides; Synthesised; Two-step hydrothermal process; Selenium compounds
Depositing User:	Scopus 2024
Date Deposited:	12 May 2024 11:07
Last Modified:	03 Oct 2024 08:43
Altmetrics:	http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1007/s10008-024-05835-4
URI:	http://psasir.upm.edu.my/id/eprint/106267
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