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

Journal Article · Wed Dec 23 00:00:00 EST 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4938456· OSTI ID:22494496

Toloman, D.; Stan, M.; Silipas, T. D.; Biris, A. R. ^[1]

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1. National Institute for Research and Development of Isotopic and Molecular Technologies Donath 67-103, 400293 Cluj-Napoca (Romania)

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.

• OSTI ID: 22494496
• Journal Information: AIP Conference Proceedings, Vol. 1700, 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); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

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