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Published in: Journal of Materials Science: Materials in Electronics 9/2021

08-04-2021

Design and fabrication of Pt-free FeNi2S4/rGO hybrid composite thin films counter electrode for high-performance dye-sensitized solar cells

Authors: G. Sankar, P. Anbarasu, R. Mahendran, K. Sambath, K. Prammapriya

Published in: Journal of Materials Science: Materials in Electronics | Issue 9/2021

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Abstract

In this work, we synthesized FeNi2S4/rGO composites as Pt-free counter electrode (CE) by one step hydrothermal method. Complete investigations of phase evolutions by XRD patterns and TEM indicate spinel structure with nanosheets and nanospherical morphologies. The individual spherical-shaped nanoparticles (30–35 nm) of FeNi2S4 were exploited on the 2D ultrathin rGO nanosheets surface. This is useful for the provision of further electrolyte adsorptions and responsive electrocatalytic sites. The DSSC constructed with FeNi2S4/rGO hybrid composite CE showed a conversion efficiency of 9.98%, better than that by FeNi2S4 CE (4.87%) and also commercial Pt (6.21%). The outstanding efficiency of the FeNi2S4/rGO hybrid composite CE is even better than commercial Pt and is an effective alternative to Pt CE in the DSSCs.

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Metadata
Title
Design and fabrication of Pt-free FeNi2S4/rGO hybrid composite thin films counter electrode for high-performance dye-sensitized solar cells
Authors
G. Sankar
P. Anbarasu
R. Mahendran
K. Sambath
K. Prammapriya
Publication date
08-04-2021
Publisher
Springer US
Published in
Journal of Materials Science: Materials in Electronics / Issue 9/2021
Print ISSN: 0957-4522
Electronic ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-021-05821-w

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