Changes induced in the luminescent emission of Eu3+ by different crystal nature: An analysis by group theory

The effects of the crystal nature on the luminescent emission of Eu3+ ion in Y2O3, HfO2 and ZrO2 oxides, synthesized by the hydrothermal route are reported. The luminescent spectra at room temperature, showed the peaks associated with the characteristic transitions of Eu3+ ion, observing significant changes in the electric dipole transition 5D0→7F1 (D°→D1), in each of the different crystals; the analysis by group theory allowed us to offer an explanation of the differences presented in the emission spectra in the different crystals.