https://scholars.lib.ntu.edu.tw/handle/123456789/407402
標題: | Effects of La3 doping on the optical characteristics and color tunability of (Mg, Mn)(Y, Ce, La)4Si3O13 phosphors | 作者: | Ghildiyal R. Hsu C.-H. Chang H.-Y. Kumar S. Lu C.-H. |
關鍵字: | Chromaticity coordinate;Optical parameters;Phosphors;Tunability | 公開日期: | 2012 | 卷: | 132 | 期: | 1 | 起(迄)頁: | 185-190 | 來源出版物: | Journal of Luminescence | 摘要: | The doping effects of La3 ions on the photoluminescence properties and color tunability of (Mg, Mn)(Y, Ce, La)4Si 3O13 phosphors have been elaborated in this study. On increasing the La3 concentration in the host, tunability of excitation wavelength is achieved first, which in turn leads to the blue shift in the wavelength of Ce3 emission. The high-energy emission shift of Ce3 ions results from the change in the crystal field around Ce 3 ions. With the incorporation of La3 ions, the chromaticity coordinates shift towards white-light region showing the tunable characteristics. Moreover, the correlated color temperature (CCT) change from warm white to cool white light region with different concentration of La 3 ions. The variation of different excitation wavelength tunes the emission thus augmenting the probability of (Mg, Mn)(Y, Ce, La) 4Si3O13 phosphors for potential application in optical devices. ? 2011 Elsevier B.V. All rights reserved. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/407402 | ISSN: | 00222313 | DOI: | 10.1016/j.jlumin.2011.08.002 |
顯示於: | 化學工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。