Synthesis and luminescent properties of Eu3+-doped ZnO phosphors
Eu 3+ -doped ZnO phosphors were prepared with different concentrations of Eu 3+ ions by using a solid-state reaction method. The synthesized samples were systematically characterized by using X-ray diffraction (XRD), scanning electron microscopy, and photoluminescence spectroscopy. The XRD patterns...
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Published in | Journal of the Korean Physical Society Vol. 66; no. 10; pp. 1559 - 1563 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
Seoul
The Korean Physical Society
01.05.2015
한국물리학회 |
Subjects | |
Online Access | Get full text |
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Summary: | Eu
3+
-doped ZnO phosphors were prepared with different concentrations of Eu
3+
ions by using a solid-state reaction method. The synthesized samples were systematically characterized by using X-ray diffraction (XRD), scanning electron microscopy, and photoluminescence spectroscopy. The XRD patterns indicate that the intensity of the ZnO (101) peak gradually increases with increasing concentration of Eu
3+
ions, with an additional Eu
2
O
3
(222) diffraction peak appearing in samples with Eu
3+
concentrations above 2 wt%. All of the phosphor samples, irrespective of the concentration of Eu
3+
ion, show a dominant red emission centered at 612 nm, which originates from the
5
D0 →
7
F
2
electric dipole transition of the Eu
3+
ion. This suggests that the Eu
3+
ions are mainly situated in the asymmetry centers of the host lattice. |
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Bibliography: | G704-000411.2015.66.10.005 |
ISSN: | 0374-4884 1976-8524 |
DOI: | 10.3938/jkps.66.1559 |