標題: Effect of microwave irradiation on surface characteristics and luminescent properties of BaMgAl10O17 : Eu blue phosphor
作者: Kuo, Kuan-Ting
Lee, Shu-Ping
Chen, San-Yuan
Cheng, Bing-Ming
Lu, Hsiao-Chi
Ting, Chu-Chi
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: luminescence
公開日期: 1-Feb-2008
摘要: BaMgAl10O17:Eu (BAM) has been an excellent blue-emitting phosphor due to its outstanding luminescence efficiency and purity for plasma display panels. An attempt of employing microwave irradiation to modify the surface properties including morphology and crystallinity of BAM powder was performed in this work. X-ray powder diffraction (XRD) analysis and scanning electron microscopy (SEM) images show that the blue-emitting phosphors after microwave irradiation treatment exhibit better crystallinity and smoother surface. Furthermore, the vacuum ultraviolet photoluminescence spectra show that the luminescent intensity of BAM phosphors can be effectively enhanced by a factor of six times under microwave irradiation treatment. The enhanced luminescent properties can be closely related to the surface modification and reduced defects of the BAM blue-emitting phosphors. (C) 2007 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.jpcs.2007.11.026
http://hdl.handle.net/11536/30164
ISSN: 0022-3697
DOI: 10.1016/j.jpcs.2007.11.026
期刊: JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
Volume: 69
Issue: 2-3
起始頁: 362
結束頁: 365
Appears in Collections:Conferences Paper


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