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Title: Optical properties of PrAlO{sub 3} nano ceramic

Nano crystals of PrAlO{sub 3} ceramic are prepared by the modified combustion technique. The structural analysis of the as prepared powder is done using the X-ray diffraction technique, shows that the compound possesses rhombohedral structure with R3c space group. The lattice constants are a=b=5.332Åand c=12.97Å. The crystallite size determined from the XRD and the TEM image is,33nm and 35nm respectively. The FT-IR spectral analysisconfirms the phase purity of the prepared sample. The UV-Vis absorption spectrum shows main peaks in the wavelength range 440–490 nm. The optical band gap determined from the Tauc’s plot is 4.67eV. Photoluminescence spectrum obtained at the excitation wavelength 370 nm of sample is also recorded and analyzed.
Authors:
; ;  [1] ;  [2]
  1. Department of Physics, Mar Ivanios College, Thiruvananthapuram 695015, Kerala (India)
  2. Department of Physics, St. John's College, Anchal 691306, Kerala (India)
Publication Date:
OSTI Identifier:
22263993
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1576; Journal Issue: 1; Conference: OMTAT 2013: 2. international conference on optoelectronic materials and thin films for advanced technology, Kochi, Kerala (India), 3-5 Jan 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; ABSORPTION SPECTRA; CERAMICS; CRYSTALS; FOURIER TRANSFORMATION; IMPURITIES; INFRARED SPECTRA; LATTICE PARAMETERS; OPTICAL PROPERTIES; PHOTOLUMINESCENCE; SPACE GROUPS; TRANSMISSION ELECTRON MICROSCOPY; TRIGONAL LATTICES; WAVELENGTHS; X-RAY DIFFRACTION