Photoluminescence properties of Ba3Si6O12N2:Eu2+ oxynitride phosphor synthesized by liquid phase precursor method

被引:12
|
作者
Song, Y. H. [1 ]
Kim, M. O. [1 ]
Jung, M. K. [3 ]
Senthil, K. [1 ]
Masaki, T. [1 ]
Toda, K. [2 ]
Yoon, D. H. [1 ]
机构
[1] Sungkyunkwan Univ, Sch Adv Mat Sci & Engn, Suwon 440746, South Korea
[2] Niigata Univ, Ctr Transdisciplinary Res, Grad Sch Sci & Technol, Niigata 9502181, Japan
[3] Hyosung Corp, R&D Business Labs, Anyang 431080, South Korea
关键词
Oxynitride phosphor; White LEDs; Concentration quenching; LIGHT-EMITTING-DIODES; CA-ALPHA-SIALON; LUMINESCENCE PROPERTIES; QUANTUM DOTS; EU2+;
D O I
10.1016/j.matlet.2012.02.131
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Ba3Si6O12N2 green-emitting phosphors were synthesized using oxide precursor by liquid phase precursor (LPP) method under a flowing NH3 gas. X-ray diffraction patterns showed that the prepared phosphor indicated a Ba3Si6O12N2 pure single phase. The emission spectra of synthesized phosphors under excited from UV to blue light showed a typically broad green emission wavelength which is assigned to 4f(6)5d -> 4f(7) electronic transition of Eu2+ ion. Compared with emission intensity of prepared sample, the emission intensity of Ba3- Si6O12N2 green-emitting phosphors using LPP method is more than 2.5 times than that of Ba3Si6O12N2 green-emitting one by a solid state reaction method. The synthesis of phosphor using the LPP method is expected as alternative synthesis method. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:121 / 124
页数:4
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