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Title: Optical and electron paramagnetic resonance studies of Cr doped Ga{sub 2}O{sub 3} nanoparticles

In the present work we report the experimental results obtained on Ga{sub 2}O{sub 3} nanoparticles doped with Cr ions. X-ray diffraction analysis confirms the substitution of Ga ions with Cr ions. A secondary phase of Cr{sub 2}O{sub 5} oxides was evidence at high doping Cr concentration by Raman spectroscopy. Different valence state of Cr ions was highlighted by UV-VIS spectroscopy. EPR spectroscopy data show the presence of different environments for Cr ions, depending on the Cr addition.
Authors:
; ; ; ;  [1]
  1. National Institute for Research and Development of Isotopic and Molecular Technologies Donath 67-103, 400293 Cluj-Napoca (Romania)
Publication Date:
OSTI Identifier:
22494496
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1700; Journal Issue: 1; Conference: PIM 2015: 10. international conference on processes in isotopes and molecules, Cluj-Napoca (Romania), 23-25 Sep 2015; Other Information: (c) 2015 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; 36 MATERIALS SCIENCE; CHROMIUM ADDITIONS; CHROMIUM IONS; CHROMIUM OXIDES; CONCENTRATION RATIO; DOPED MATERIALS; ELECTRON SPIN RESONANCE; GALLIUM IONS; GALLIUM OXIDES; NANOPARTICLES; RAMAN SPECTROSCOPY; ULTRAVIOLET SPECTRA; VALENCE; X-RAY DIFFRACTION