Calculation of the crystal field parameters for Eu3+ doped in SrAl2O4 and SrIn2O4 spinels
Pages 132-138
M. L. Stanciu
Abstract
Strontium aluminate (SrAl2O4) and the indium aluminate (SrIn2O4)
spinels have been proven to be efficient host materials, which offer the
possibility of generating broadband emission after doping with rare earth
trivalent ions. The present work is devoted to the calculation of the
crystal field parameters and the energy levels of the trivalent europium
doped in SrAl2O4 and SrIn2O4 spinels, using the superposition model of
the crystal field. Using the intrinsic parameters for Eu3+
- O
2-
bonds, and
the geometry structure of the each crystal, we modeled the CFPs and
simulated the low-lying energy levels schemes. The obtained results are
compared with the experimental data and discussed.