標題: | Synthesis of Eu3+-activated yttrium oxysulfide red phosphor by flux fusion method |
作者: | Lo, CL Duh, JG Chiou, BS Peng, CC Ozawa, L 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
關鍵字: | phosphor;yttrium oxysulfide;flux fusion;cathodoluminescence |
公開日期: | 15-八月-2001 |
摘要: | Synthesis of the yttrium oxysulfide red phosphor by the flux fusion method was presented. Effects of flux compositions and sintering conditions on the shape and size distribution of phosphor were studied. In addition, the optimization of firing conditions was also conducted. After firing phosphor with a flux containing (S + Na2CO3 + Li3PO4 + K2CO3)/(S + Li2CO3 + K2CO3) at a ratio of 3:1 at 1150 degreesC for 2.5 h, Y2O2S:Eu3+ phosphor was obtained without any Y2O3 as a second phase. The nearly spherical phosphor powder exhibited a mean particle size of 3 mum and a rather sharp particle size distribution. Y2O2S:Eu3+ red phosphor illuminated the most red color light with an applied probe current density of 0.51 muA/cm(2). (C) 2001 Elsevier Science BN. All rights reserved. |
URI: | http://dx.doi.org/10.1016/S0254-0584(01)00279-6 http://hdl.handle.net/11536/29452 |
ISSN: | 0254-0584 |
DOI: | 10.1016/S0254-0584(01)00279-6 |
期刊: | MATERIALS CHEMISTRY AND PHYSICS |
Volume: | 71 |
Issue: | 2 |
起始頁: | 179 |
結束頁: | 189 |
顯示於類別: | 期刊論文 |