標題: | Spectral properties of Eu3+-activated yttrium oxysulfide red phosphor |
作者: | Tseng, YH Chiou, BS Peng, CC Ozawa, L 電子工程學系及電子研究所 光電工程研究所 Department of Electronics Engineering and Institute of Electronics Institute of EO Enginerring |
關鍵字: | phosphor;Y2O2S : Eu;luminescence |
公開日期: | 30-九月-1998 |
摘要: | The effects of Eu on the spectral properties of Y2O2S have been investigated. The Y2O2S:Eu phosphor powders were prepared with a flux fusion method and electrophoretically deposited on an ITO-coated glass substrate to form a thin layer. Both cathodoluminescence and photoluminescence emission spectra of Y2O2S:Eu were measured. The highly intense emission lines at 616 and 626 nm are attributed to the transition from D-5(0) to F-7(2) levels. The color of Y2O2S:Eu phosphor varies from orange to red as the Eu concentration increases from Eu/ Y = 0.025 (molar ratio) to 0.06. The luminescence decay times are shorter than 1.1 ms for Eu concentrations ranging from 0.025 to 0.06 (Eu/ Y molar ratio). The luminescent color becomes redder but less bright as the Eu concentration is increased. (C) 1998 Elsevier Science S.A. All rights reserved. |
URI: | http://dx.doi.org/10.1016/S0040-6090(98)00549-5 http://hdl.handle.net/11536/150459 |
ISSN: | 0040-6090 |
DOI: | 10.1016/S0040-6090(98)00549-5 |
期刊: | THIN SOLID FILMS |
Volume: | 330 |
起始頁: | 173 |
結束頁: | 177 |
顯示於類別: | 期刊論文 |