Santosh, M.S. (2025) 3D Printed Iron Pyrite via Meniscus Confinement: A Promising Material for Photovoltaic Solar Cells. Chem Asian J., 47.

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Abstract

The meniscus-confined electrochemical 3D printing (MC-E3DP) process has emerged as a novel approach for fabricating sub- micron complex structures through localized electrochemical deposition from salt solutions of desired materials. This study reports, for the first time, the MC-E3DP fabrication of iron oxide (Fe3 O4 ) thin films on indium tin oxide (ITO)-coated glass substrates. The Fe 3 O4 films are characterized using XRD, Raman spectroscopy, and UV–vis pectroscopy, confirming phase purity. Subsequently, the Fe 3 O4 thin films are subjected to sulfurization under varying conditions to synthesize iron pyrite (FeS 2 ) thin films, a promising solar absorber material for photovoltaic applications. The sulfurized FeS 2 thin films are analyzed for phase purity using XRD, XPS, and Raman spectroscopy, while FESEM was employed to study their morphology. UV–vis–NIR spectroscopy reveals high absorption coefficients (∼10 5 cm−1 for wavelengths below 700 nm) and indirect bandgaps ranging from 0.78 to 0.86 eV. All films exhibited n-type conductivity with a charge carrier density of ∼10 19 cm−3 . Photoel ectro chemical studies demonstrated a stable photocurrent response, indicating their suitability for solar cell applications. The MC-E3DP process offers exceptional control over structure and growth, making it a promising technique for creating device architectures tailored for specific applications

Item Type:	Article
Subjects:	Coal Characterisation
Divisions:	UNSPECIFIED
Depositing User:	Mr. B. R. Panduranga
Date Deposited:	08 Aug 2025 10:00
Last Modified:	08 Aug 2025 10:02
URI:	http://cimfr.csircentral.net/id/eprint/2853

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