J. Phys. IV France 11 (2001) Pr3-653-Pr3-660
Deposition by an aerosol assisted MOCVD process of Eu or Er doped Y2O3-P2O5 thin filmsJ.L. Deschanvres and W. Meffre
Laboratoire des Matériaux et du Génie Physique, CNRS, École Nationale Supérieure de Physique de Grenoble, avenue de la Houille Blanche, BP. 46, 38402 Saint-Martin-d'Hères, France
The deposition of Er or Eu doped Y2O3-P2O5 thin films by an aerosol assisted MO-CVD atmospheric process is studied. 0.1 to 0.5 µm thick films were obtained on glass substrates in the temperature range 400°C-580°C. The rare earth luminescence is activated by post annealing. The properties of the films were discussed in function of the P2O5 content. For high annealing post-deposition treatments the films with less than 15 Mol % P2O5 tended to crystallise in the yttria phase. The YPO4 phase appeared around 50 Mol % P2O5 . Between these concentration limits the films appeared as a disordered composite Y-P-O phase and exhibited wide luminescence bands.
© EDP Sciences 2001