Skip to main content

Preparation and Spectroscopy Characterization of Eu:MgAl2O4 Nanopowder Prepared by Modified Pechini Method

Buy Article:

$113.00 plus tax (Refund Policy)

Abstract:

In the present work, a modified Pechini method was employed to prepare nanostructured MgAl2O4 spinel powders doped with Eu3+ ions. The XRD analyses demonstrated that the powders were single-phase spinel nanopowders with high crystallite dispersion. The average spinel particle size was determined to be ≈15 nm for calcination at 700 °C, and ≈20 at 1000 °C. The emission and excitation spectra measured for the samples calcinated at 700 and 1000 °C demonstrated characteristic spectra of Eu3+ ions as well as were measured the emission spectra of Eu2+ ions for the samples calcinated at 700 °C. The effect of MgAl2O4 grain sizes on luminescence properties was noticed. To explain these differences a detailed analysis of luminescence spectra by the Judd–Ofelt theory has been performed.

Keywords: AFTERGLOW; EU3+ AND EU2+; MGAL2O4 SPINEL; NANOCRYSTALLITES; PHOTOLUMINESCENCE

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2009.1259

Publication date: 2009-10-01

More about this publication?
  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more