ModTech International Conference - New face of TMCR
Modern Technologies, Quality and Innovation - New face of TMCR
20-22 May 2010
355
NANOSTRUCTURED LUMINESCENCE PARTICLES SYNTHESIZED
THROUGH AEROSOL ROUTE AT INTERMEDIATE TEMPERATURE
Vesna Lojpur1, K.Marinkovic1, L. Mancic1, M.E. Rabanal2, L.S.Gomez2, J.M.Torralba3, O.
Milosevic1
1Institute
of Technical Sciences of Serbian Academy of Sciences and Arts, K.Mihailova 35/IV, 11000 Belgrade, Serbia
Materials Science and Chemical Engineering Department and 3IMDEA Materials, Universidad Carlos III de Madrid,
Avda. De la Universidad 30, Spain
2
Corresponding author: Olivera Milosevic, olivera.milosevic@itn.sanu.ac.rs
Abstract: The nanostructured Y2O3 particles doped with either Eu3+ or Ce3+ were processed through aerosol route from
common nitrate solutions. Synthesis was carried out with an ultrasonic aerosol generator connected with a triple-zone
tubular flow reactor pre-setting at 200-700-900ºC. As-prepared particles were additionally subjected to the post thermal
treatments in the range from 1000 to 1200 ºC for 12 hours in air atmosphere in order to increase the crystallinity and the
homogeneity of doped centres. The morphology, structure, crystallinity and chemical characteristics were studied by XRD,
SEM/EDS, analytical and HR-TEM. The particles obtained are spherical, nanoscaled, having narrow size distribution, high
compositional homogeneity and are in un-agglomerated state. The effects of synthesis parameters were followed and
discussed in terms of particle structure and morphology.
Key words: nanostructure, particle, aerosol, morphology, crystal structure, luminescence