Correlation of morphology and photoluminescence properties of gehlenite: Eu glassy phosphors
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- 作者：Shao-Ju Shih ; Yu-Chien Lin ; Shih-Heng Lin and Chin-Yang Yu
- 刊名：International Journal of Applied Ceramic Technology
- 出版年：2017
- 出版时间：January/February 2017
- 年：2017
- 卷：14
- 期：1
- 页码：56-62
- 全文大小：1103K
- ISSN：1744-7402
文摘
In this study, gehlenite: Eu glassy powders were synthesized from two common Si sources, silicon tetraethyl orthosilicate (TEOS) and silicon acetate (SiA), using spray pyrolysis. Its morphology and chemical composition were studied. The morphological results suggested that the SiA-derived powder contained more porous particles than the TEOS-derived powder. The two gehlenite powders thus formed were found to have similar chemical compositions. Accordingly, porous gehlenite: Eu glassy phosphor seems to exhibit superior PL properties, which have the potential to be exploited in novel phosphor materials.