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Synthesis and photoluminescence properties of perovskite KMgF3:Eu nanocubes

Published online by Cambridge University Press:  21 October 2011

Ying Li ,
Kai Pan ,
Guofeng Wang ,
Naiying Fan  and
Xiaohuan Miao
Ying Li
Affiliation:
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
Kai Pan
Affiliation:
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
Guofeng Wang*
Affiliation:
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
Naiying Fan
Affiliation:
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
Xiaohuan Miao
Affiliation:
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China
*
a)Address all correspondence to this author. e-mail: wanggf75@gmail.com
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Abstract

KMgF3:Eu nanocubes with a mean edge length of ∼12 nm were synthesized by a hydrothermal method. Result of x-ray diffraction reveals that the nanocubes are perovskite phase. Under ultraviolet excitation, the broad emission bands from trace oxygen and color centers in KMgF3 matrix were observed. In comparison with a bulk sample having the same chemical compositions, no characteristic emissions of Eu2+ were observed, which can be attributed to the overlappment of the emissions of Eu2+ and color centers in KMgF3:Eu nanocubes. In addition, the emissions of Eu3+ were also detected, and the intensity ratio of 5D0 → 7F2 to 5D0 → 7F1 changed with excitation wavelength, indicating that the material has multiple luminescence centers or emitting states.

Keywords

LanthanideLuminescenceNanostructure
Type
Articles
Information
Journal of Materials Research , Volume 26 , Issue 22 , 28 November 2011 , pp. 2867 - 2870
Copyright
Copyright © Materials Research Society 2011

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