標題: | Low-voltage cathodoluminescence properties of the Y2O2S : Eu red light emitting phosphor screen in field-emission environments |
作者: | Lo, CL Duh, JG Chiou, BS 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
公開日期: | 1-七月-2002 |
摘要: | Y2O2S: Eu phosphors doped with different concentrations of Eu were fabricated by a high-temperature flux fusion method. For applications in field emission displays, phosphor powders were electrophoretically deposited on an indium-tin oxide coated glass substrate to form a phosphor screen. Cathodoluminescence properties of phosphor screens were examined at a low excitation voltage of 5 kV in a high-vacuum chamber (5 x 10(-8) Torr), and characteristics of Y2O2S: Eu phosphors, including brightness and wavelength data, are presented and discussed. The red emission brightness for the Y2O2S: Eu phosphor screens can be significantly improved by adjustment of the Eu additions, which decrease the x coordinate slightly, while having no significant influence on the color performance. Considering the effects of Eu concentrations on red light emission spectra and brightness for Y2O2S: Eu phosphor screens, it is found that brightness for Y2O2S: Eu phosphor screens could be obtained up to 120 cd/m(2) with chromaticity of x = 0.63 and y = 0.36, and the Eu dopant concentration is suggested to be in the range 6-7.5 wt %. (C) 2002 The Electrochemical Society. |
URI: | http://dx.doi.org/10.1149/1.1482770 http://hdl.handle.net/11536/28696 |
ISSN: | 0013-4651 |
DOI: | 10.1149/1.1482770 |
期刊: | JOURNAL OF THE ELECTROCHEMICAL SOCIETY |
Volume: | 149 |
Issue: | 7 |
起始頁: | H129 |
結束頁: | H133 |
顯示於類別: | 期刊論文 |