Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9577397 | Chemical Physics Letters | 2005 | 5 Pages |
Abstract
Continuous, single-step synthesis of monocrystalline Y2O3:Eu3+ nanophosphor particles (10-25Â nm in diameter and 5Â wt% Eu) was achieved by flame spray pyrolysis (FSP). The effect of FSP process parameters on materials properties was investigated by X-ray diffraction (XRD), nitrogen adsorption (BET) and transmission electron microscopy (TEM). Photoluminescence (PL) emission were measured as well as the time-resolved PL-intensity decay. Controlled synthesis of monoclinic or cubic Y2O3:Eu3+ nanoparticles was achieved without post-treatment by controlling the high temperature residence time of these particles. The cubic nanoparticles exhibited longer decay times but lower maximum PL intensity than commercial micron-sized bulk Y2O3:Eu3+ phosphor powder.
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Authors
Adrian Camenzind, Reto Strobel, Sotiris E. Pratsinis,