https://scholars.lib.ntu.edu.tw/handle/123456789/407414
Title: | Structural and optical characteristics of CeSi3N 5:Tb3+ nitridosilicate phosphors | Authors: | Hsu C.-H. Lu C.-H. |
Issue Date: | 2011 | Journal Volume: | 94 | Journal Issue: | 5 | Start page/Pages: | 1320-1323 | Source: | Journal of the American Ceramic Society | Abstract: | A nitridosilicate phosphor CeSi3N5 has been successfully prepared via the carbothermal reduction and nitridation method. The accurate structural parameters of single-phased CeSi3N5 were determined utilizing the Rietveld refinement process. Upon excitation at 353 nm, CeSi3N5 exhibited an intense blue emission assigned to a Ce3+ ion transition. When Tb3+ ions were doped into the host, several Tb3+ emission lines and a decrease in Ce3+ emission were observed. Energy transfer from Ce3+ to Tb3+ resulted in a color shift from blue to greenish blue. The color-tunable CeSi3N5:Tb3+ phosphors to be used in ultraviolet light-emitting diodes were developed by modulating the Tb 3+ concentrations. ? 2011 The American Ceramic Society. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/407414 | ISSN: | 00027820 | DOI: | 10.1111/j.1551-2916.2011.04456.x |
Appears in Collections: | 化學工程學系 |
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