Structural Properties of Cr3+-Doped Cadmium Oxide Nanopowders

• Published in: Applied magnetic resonance Vol. 42; no. 3; pp. 403 - 411
• Main Authors: KrishnaRao, L. V., Sathish, D. V., Venkata Reddy, Ch, Udayachandran Thampy, U. S., Venkateswarlu, K., Rao, P. S., Ravikumar, R. V. S. S. N.
• Format: Journal Article
• Language: English
• Published: Vienna Springer Vienna 01.04.2012; Springer Nature B.V
• Subjects: Absorption spectra; Atoms and Molecules in Strong Fields; Cadmium; Chromium oxides; Electron paramagnetic resonance; Fourier transforms; Infrared spectroscopy; Laser Matter Interaction; Morphology; Nanomaterials; Nanoparticles; Nitrates; Organic Chemistry; Parameters; Particle size; Physical Chemistry; Physics; Physics and Astronomy; Room temperature; Scanning electron microscopy; Solid State Physics; Solvents; Spectroscopy/Spectrometry; Symmetry; Trivalent chromium; X-ray diffraction; Mumbai India; India; Interelectronic Repulsion; Electron Paramagnetic Resonance; Optical Absorption Study; Chromium Nitrate; Electron Paramagnetic Resonance Spectrum
• ISSN: 0937-9347; 1613-7507
• DOI: 10.1007/s00723-011-0308-3

The Cr 3+ -doped cadmium oxide nanopowder is prepared at room temperature by a mild and simple solution method. The prepared powder is characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), optical, electron paramagnetic resonance (EPR) and Fourier transform infrared (FT-IR) techniques. The XRD powder pattern reveals the lattice structure and cell parameters are evaluated. The SEM image shows the stone-like morphology of the nanopowder. The optical absorption spectrum indicates the distorted octahedral site symmetry of Cr 3+ ions. The crystal field Dq and interelectronic repulsion parameters B and C are evaluated. The EPR spectrum gives a resonance signal at g  = 1.973 for Cr 3+ ions. The FT-IR spectrum reveals the characteristic vibrations of cadmium oxide.