Preparation and photoluminescence enhancement of Li＋ and Eu3＋ co-doped YPO4 hollow microspheres

Li＋ and Eu3＋ co-doped YPO4 hollow microspheres were successfully synthesized by a sacrificial template method using polystyrene （PS） as template. Techniques of X-ray diffraction （XRD）, scanning electron microscopy （SEM）, as well as transmission electron microscopy （TEM） were employed to characterize...

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Published inJournal of rare earths Vol. 31; no. 5; pp. 449 - 455
Main Author 张立新 酒红芳 付跃华 孙益新 王瑗钟
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.05.2013
Subjects
Diffraction
europium
hollow microspheres
lithium
photoluminescence
rare earths
sacrificial template
X-射线衍射
YPO4
yttrium orthophospha
光致发光
共掺杂
制备
扫描电子显微镜
空心微球
透射电子显微镜
lithium
photoluminescence
hollow microspheres
sacrificial template
europium
yttrium orthophospha
rare earths
Online AccessGet full text
ISSN1002-0721
2509-4963
DOI10.1016/S1002-0721(12)60302-0

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Summary:Li＋ and Eu3＋ co-doped YPO4 hollow microspheres were successfully synthesized by a sacrificial template method using polystyrene （PS） as template. Techniques of X-ray diffraction （XRD）, scanning electron microscopy （SEM）, as well as transmission electron microscopy （TEM） were employed to characterize the as-synthesized sample. Furthermore, the photoluminescence （PL） characterization of the Li＋ and Eu3＋ co-doped YPO4 microsphere was carried out and the effects of the doping concentration of Li＋ and Eu3＋ active center concentration as well as calcination temperature on the PL properties were studied in detail. The results showed that the incorporation of Li＋ ions into the YPOa：Eu3＋ lattice could induce a remarkable improvement of the PL intensity. The highest emission intensity was observed with the compound of 5%Li＋ and 5%Eu3＋ co-doped YPO4, whose brightness was increased by a factor of more than 2.2 in comparison with that of the YPO4：5%Eu3＋.
Bibliography:11-2788/TF
Li＋ and Eu3＋ co-doped YPO4 hollow microspheres were successfully synthesized by a sacrificial template method using polystyrene （PS） as template. Techniques of X-ray diffraction （XRD）, scanning electron microscopy （SEM）, as well as transmission electron microscopy （TEM） were employed to characterize the as-synthesized sample. Furthermore, the photoluminescence （PL） characterization of the Li＋ and Eu3＋ co-doped YPO4 microsphere was carried out and the effects of the doping concentration of Li＋ and Eu3＋ active center concentration as well as calcination temperature on the PL properties were studied in detail. The results showed that the incorporation of Li＋ ions into the YPOa：Eu3＋ lattice could induce a remarkable improvement of the PL intensity. The highest emission intensity was observed with the compound of 5%Li＋ and 5%Eu3＋ co-doped YPO4, whose brightness was increased by a factor of more than 2.2 in comparison with that of the YPO4：5%Eu3＋.
ZHANG Lixin , JIU Hongfang, FU Yuehua, SUN Yixin , WANG Yuanzhong（1. Chemical Engineering and Environment Institute, North University of China, Taiyuan 030051, China; 2. College of Science, North University of China, Taiyuan 030051, China）
yttrium orthophospha; sacrificial template; europium; lithium; photoluminescence; hollow microspheres; rare earths
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SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:1002-0721
2509-4963
DOI:10.1016/S1002-0721(12)60302-0