Combustion synthesis and photoluminescence properties of europium doped yttrium oxide nanoparticles

X. Qin, Yiguang Ju, S. Bernhard, N. Yao

Research output: Contribution to conferencePaper

Abstract

Europium doped yttrium oxide (Y2O3:Eu) nano particles were synthesized by flame spray pyrolysis method and the effect of precursor solution on particle size, morphology and photoluminescence properties was studied. The particles were examined by using X-ray diffraction, scanning electron microscopy, and spectrophotometer. Compared with previous report, SEM shows fine and smooth structure for particles prepared from ethanol alcohol as precursor solution. The particle size can be controlled by varying precursor concentration, flame temperature and residence time. Upon excitation with 355 nm UV light, the particles show red emission and the PL intensity of particles using ethanol is 30% stronger than those using water as precursor solution. XRD spectra showed that the as prepared particles have a monoclinic structure, while annealing the particles at 1200 °C convert monoclinic phase into cubic phase. The concentration quenching limit of the particles was found at 18% mol Eu.

Original languageEnglish (US)
Pages185-188
Number of pages4
StatePublished - Dec 1 2005
Event5th Asia-Pacific Conference on Combustion, ASPACC 2005 - Adelaide, SA, Australia
Duration: Jul 17 2005Jul 20 2005

Other

Other5th Asia-Pacific Conference on Combustion, ASPACC 2005
CountryAustralia
CityAdelaide, SA
Period7/17/057/20/05

All Science Journal Classification (ASJC) codes

  • Fluid Flow and Transfer Processes

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