Synthesis, structural and paramagnetic properties of SnO{sub 2} doped NiO nanoparticles

Journal Article · Fri May 06 00:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4946340· OSTI ID:22606411

Dwivedi, Sonam; Dar, Hilal A.; Dar, M. A.; Varshney, Dinesh ^[1]

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1. School of Physics, Vigyan Bhawan, Devi Ahilya University, Khandwa Road Campus, Indore 452001 (India)

In this work, Sn doped NiO nanoparticles were synthesized by co-precipitation route to explore the impact of doping on lattice structure, dielectric constant and magnetization. X-ray diffraction analysis confirmed cubic (Fd-3m) structure of Sn doped NiO. Average crystallite size decreases from 78.2 nm (Ni{sub 0.95}Sn{sub 0.05}O) to 64.23 nm (Ni{sub 0.8}Sn{sub 0.2}O). Scanning electron microscopy images confirm that nanocrystals have agglomerated spherical morphology. The Raman spectrum exhibits a strong, broad peak at 410 cm{sup -1} and is attributed to the Ni-O stretching mode and doped samples show a blue shift. The dielectric constants at about 1 Hz are measured to be about 1.795, 1.030, 0.442, and 0.302 × 10{sup 3} Ni{sub 1-x}Sn{sub x}O (x = 0.05, 0.1, 0.15, 0.2), respectively. The dielectric constant in nanoparticles of doped Ni{sub 1-x}Sn{sub x}O is three orders of magnitude higher as compared to pure NiO ceramics. The nature of magnetization - applied field (M-H) infers paramagnetic behaviour for Sn doped NiO nanoparticles.

• OSTI ID: 22606411
• Journal Information: AIP Conference Proceedings, Vol. 1728, Issue 1; Conference: ICC 2015: International conference on condensed matter and applied physics, Bikaner (India), 30-31 Oct 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
CERAMICS
COMPARATIVE EVALUATIONS
COPRECIPITATION
DIELECTRIC MATERIALS
DOPED MATERIALS
ELECTRON SCANNING
MAGNETIZATION
NANOPARTICLES
NANOSTRUCTURES
NICKEL OXIDES
PARAMAGNETISM
PERMITTIVITY
RAMAN SPECTRA
SCANNING ELECTRON MICROSCOPY
SPHERICAL CONFIGURATION
SYNTHESIS
TIN OXIDES
X RADIATION
X-RAY DIFFRACTION