Bulletin of Materials Science

, Volume 31, Issue 7, pp 967–973 | Cite as

Preparation, characterization and luminescent properties of europium oxide doped nano LaMn0·9Zn0·1O3+d by sol-gel processing

Article

Abstract

New compounds of rare earth complex oxides with perovskite structure in a combination of La with Eu ions and Mn with Zn ions, La1−xEuxMn0·9Zn0·1O3+d (LEMZ) (0·0 ≤ x ≤ 0·32) in A and B sites, respectively were synthesized. X-ray powder diffraction (XRD), fourier transform infrared spectroscopy (FT-IR) and photoluminescence spectra (PL) were used to characterize the resulting nanoparticles. The powder X-ray diffraction peaks could be indexed as a rhombohedral cell. The results of FT-IR spectra were in agreement with those of XRD. High-quality nanopowders with controlled stoichiometry and microstructure were prepared at a temperature range of 700–800°C for 6 h, with mean particle sizes of ∼ 17·5 nm. Photoluminescence measurements showed Eu3+ ions characteristic red emission in crystalline LEMZ powders due to the 5D07FJ (J = 0–6) transitions of the 4f electrons of Eu3+ ions. The structure, homogeneity and particle size of the obtained compounds during different stages were investigated by scanning electron microscopy (SEM).

Keywords

Lanthanum manganese europium perovskite sol-gel luminescence 

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Copyright information

© Indian Academy of Sciences 2008

Authors and Affiliations

  • Abdolali Alemi
    • 1
  • Elnaz Karimpour
    • 1
  • Hossein Shokri
    • 1
  1. 1.Department of Inorganic ChemistryUniversity of TabrizTabrizIran

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