Morphology and luminescent properties of Al/Mg-doped Y2O3:Eu phosphor

Morphology and luminescent properties of Al/Mg-doped Y2O3:Eu phosphor

Al/Mg doped Y2O3:Eu phosphor was synthesized by the glycine-nitrate solution combustion method. In contrast to Y2O3:Eu which showed an irregular shape of agglomerated particles (the mean particle size > 10 mum), the morphology of Al/Mg doped Y2O3:Eu crystals was quite regular. Al/Mg substituting...

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Veröffentlicht in:Journal of materials science 2008-03, Vol.43 (5), p.1619-1623
Hauptverfasser: Liu, Zhen, Feng, Yang, Jiao, Dongmei, Zhang, Na, Jiao, Huan
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Feng, Yang
Jiao, Dongmei
Zhang, Na
Jiao, Huan
description Al/Mg doped Y2O3:Eu phosphor was synthesized by the glycine-nitrate solution combustion method. In contrast to Y2O3:Eu which showed an irregular shape of agglomerated particles (the mean particle size > 10 mum), the morphology of Al/Mg doped Y2O3:Eu crystals was quite regular. Al/Mg substituting Y in Y2O3:Eu resulted in an obvious decrease of the particle size. Meanwhile, higher the Al/Mg concentration, smaller the particle size. In particular, the introduction of Al ion into Y2O3 lattice induced a remarkable increase of PL and CL intensity. While, for Mg doped Y2O3:Eu samples, their PL and CL intensities decreased. The reason that causes the variation of PL and CL properties for Al and Mg doped Y2O3:Eu crystals was concluded to be related to sites of Al and Mg ions inclined to take and the difference of ion charge.
doi_str_mv 10.1007/s10853-007-2313-3
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