Structural, morphological, optical and magnetic properties of Ag3(2+x)InxNb4-xO11+δ (0.25 ≤ x ≤ 1.0) nanoparticles synthesized by sol–gel method

Journal Article · Sat Sep 15 00:00:00 EDT 2018 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2018.04.049· OSTI ID:22805182

Ramaclus, Jerald V. ^[1]; Das, B. B.; Mosquera, Edgar ^[2]

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1. Department of Physics, St. Joseph's College, Tiruchirappalli, Tamil Nadu, 620002 (India)
2. Laboratorio de Materiales Funcionales a Nanoescala, Departamento de Ciencia de los Materiales, Universidad de Chile, Beauchef 851, Santiago (Chile)

Highlights: • Novel Ag{sub 3 (2+x)} In{sub x}Nb{sub 4-x}O{sub 11+δ} nanoparticles were synthesized by sol-gel method and studied their optical magnetic properties. • XRD studies confirm the single-phase monoclinic lattice structure with P2/m space group. • Morphology, purity and homogeneity of samples were confirmed by SEM images, EDX and X-ray mapping. • The absorption spectra and tauc plots confirms the semiconductor nature of the samples. • Magnetic studies reveals the ferromagnetic behavior of the samples at room temperature. - Abstract: Herein, we report the structure, morphology, optical and magnetic properties of novel Ag{sub 3 (2+x)} In{sub x}Nb{sub 4-x}O{sub 11+δ} (0.25 ≤ × ≤ 1.0; A1–A4) nanoparticles prepared by sol-gel technique. The samples were studied using X-ray diffraction, electron microscopy, diffuse reflectance spectroscopy, vibrating sample magnetometer, and electron spin resonance. X-ray diffraction studies confirm the formation of monoclinic lattice type with P2/m space group. Purity and homogeneity of the samples were confirmed by X-ray mapping. The semiconductor nature of the samples was identified by optical absorption spectra which indicate an inter-band transition from the oxygen 2p to niobium 4d electronic states. The magnetization plots reveal the room temperature ferromagnetic behavior of the samples.

• OSTI ID: 22805182
• Journal Information: Materials Research Bulletin, Vol. 105; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ABSORPTION SPECTRA
ELECTRON SPIN RESONANCE
INDIUM COMPLEXES
MAGNETIC PROPERTIES
MAGNETIZATION
MONOCLINIC LATTICES
NANOPARTICLES
NIOBATES
NIOBIUM
OPTICAL PROPERTIES
OXYGEN
SCANNING ELECTRON MICROSCOPY
SEMICONDUCTOR MATERIALS
SILVER COMPLEXES
SOL-GEL PROCESS
SPACE GROUPS
SPECTROSCOPY
SYNTHESIS
TEMPERATURE RANGE 0273-0400 K
VIBRATING SAMPLE MAGNETOMETERS
X RADIATION
X-RAY DIFFRACTION