Synthesis of nanocrystalline ZnGa2O4 phosphor with different concentrations via a precipitation method

被引：6
|
作者：
Kim, Se-Jun [1 ]
Yoon, Hyon-Hee [2 ]
Park, Sang-Joon [2 ]
Park, Yong-Seo [1 ]
Choi, Hyung-Wook [1 ]
机构：
[1] Kyungwon Univ, Dept Elect Engn, Songnam 461701, Gyeonggi, South Korea
[2] Kyungwon Univ, Dept Chem & Bio Engn, Songnam 461701, Gyeonggi, South Korea
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2008年 / 47卷 / 01期
关键词：
ZnGa2O4; field emission display; cathodoluminescence; nanocrystalline; phosphor;
D O I：
10.1143/JJAP.47.784
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this study, nanocrystalline zinc gallate (ZnGa2O4) phosphors were prepared by a precipitation method using aqueous ammonia as the precipitant. This method enabled the low temperature formation of phosphors with spherical shape. The samples were characterized by X-ray diffractometry (XRD), scanning electron microscopy (SEM), and cathodoluminescence (CL). The highest diffraction intensity was observed for the sample with a metal ion concentration of 0.1 mol/dm(3). The sample with this metal ion concentration had nanocrystalline ZnGa2O4 phosphor with an average size of about 80 nm. The emission spectra of ZnGa2O4 showed a broad self-activated blue emission band spanning over in the wide range of 300-600 nm with a peak wavelength of about 420 nm; this band showed a maximum intensity at a metal ion concentration of 0.1 mol/dm(3).
引用
收藏
页码：784 / 786
页数：3
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