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Characterization and calculation of energy levels scheme for Er3+:ZnGa2O4

M. VASILE1,2, N. AVRAM1,3,* , P. VLĂZAN2, I. GROZESCU2, M. MICLĂU2

Affiliation

  1. Departament of Physics, West University of Timisoara, Timisoara, 300223, Romania
  2. National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, 300224, Romania
  3. Academy of Romanian Scientists, Bucharest, 050094, Romania

Abstract

Zinc gallate (ZnGa2O4) is a normal spinal crystal structure, with Zn2+ ions in the tetrahedral sites and Ga3+ ions in the octahedral sites. ZnGa2O4 has attracted much attention due to its many possible applications for field emission display, electroluminescent devices and in the last mostly sensor domain. ZnGa2O4:Er3+ nanoparticles were obtained by the hydrothermal method using Ga2O3, Zn(NO3)2 · 6H2O and Er2O3 precursors in basic medium using a Teflon-lined strainless steel autoclave tightly sealed. The near infrared photoluminescence study for the Er3+:ZnGa2O4 nanocomposites showed a broad and strong emission band at 1550 nm which was attributed to the 4 F7/2→4 I15/2 transition of Er3+ ion..

Keywords

Nanoparticles, ZnGa2O4:Er3+, Hydrothermal method.

Submitted at: Sept. 1, 2008
Accepted at: Nov. 11, 2008

Citation

M. VASILE, N. AVRAM, P. VLĂZAN, I. GROZESCU, M. MICLĂU, Characterization and calculation of energy levels scheme for Er3+:ZnGa2O4, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 11, pp. 2898-2901 (2008)