A comparative study of structural, optical, and magnetic properties of LaFeO3 and La2CuO4 perovskite nanoparticles

The creation of perovskite-based materials with a high absorption rate and a regulated effective absorption bandwidth is the top priority for the majority of applications. In the present study, the LaFeO 3 and La 2 CuO 4 nanoparticles (NPs) were prepared using the microwave combustion method, exploi...

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Published in:Journal of materials science. Materials in electronics 2024-05, Vol.35 (14), p.949, Article 949
Main Authors: Sukumar, M., Simon, Deepa, Kumar, Anuj, Ubaidullah, Mohd, Sutha, A., Kumar, Sandeep, Yuvaraj, S., Banupriya, K., Subashini, C., Gupta, Manish, Bhaskaran, A., Sundararajan, M., Manohar, Ala
Format: Article
Language:English
Subjects:
Absorption
Characterization and Evaluation of Materials
Chemistry and Materials Science
Comparative studies
Diffuse reflectance spectroscopy
Electrons
Ferrites
Ferromagnetism
Hysteresis
Infrared spectra
Lanthanum compounds
Magnetic properties
Materials Science
Nanoparticles
Optical and Electronic Materials
Optical properties
Perovskite structure
Perovskites
Photoelectrons
Spectrum analysis
Ultraviolet reflection
X ray photoelectron spectroscopy
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Summary:The creation of perovskite-based materials with a high absorption rate and a regulated effective absorption bandwidth is the top priority for the majority of applications. In the present study, the LaFeO 3 and La 2 CuO 4 nanoparticles (NPs) were prepared using the microwave combustion method, exploiting l -arginine as fuel. The characterization of the prepared LaFeO 3 and La 2 CuO 4 NPs was carried out using multiple advanced techniques. The X-ray diffraction (XRD) studies confirmed the prepared LaFeO 3 and La 2 CuO 4 NPs to exist in their orthorhombic perovskite structure. The X-ray photoelectron spectroscopy (XPS) peak areas are often used to quantify the elemental compositions and oxidizing states of LaFeO 3 and La 2 CuO 4 perovskite materials surface. Moreover, their respective average size of 21 and 25 nm was estimated by field-emission scanning electron microscopy (FE-SEM) technique. The infrared (IR) spectra of LaFeO 3 NPs indicated the appearance of two bands at 656 and 570 cm −1 , which can be ascribed to stretching vibration for La 3+ –O 2− tetrahedral and Fe 3+ –O 2− octahedral units, respectively. Further, associating ultraviolet (UV) with diffuse reflectance spectroscopy (DRS), the band gap value for LaFeO 3 and La 2 CuO 4 NPs was found to be 2.17 and 2.13 eV, respectively. In addition, the magnetic investigations via magnetic hysteresis ( M – H ) loops revealed the ferromagnetic behavior of both the LaFeO 3 and La 2 CuO 4 NPs.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-024-12704-3