National Tsing Hua University Institutional Repository:Low-Voltage Cathodoluminescence Properties of the Y2O2S:Eu Red Light Emitting Phosphor Screen in Field-Emission Environments
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    National Tsing Hua University Institutional Repository > 工學院  > 材料科學工程學系 > 期刊論文 >  Low-Voltage Cathodoluminescence Properties of the Y2O2S:Eu Red Light Emitting Phosphor Screen in Field-Emission Environments


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    题名: Low-Voltage Cathodoluminescence Properties of the Y2O2S:Eu Red Light Emitting Phosphor Screen in Field-Emission Environments
    作者: C. L. Lo;J. G. Duh;B. S. Chiou
    教師: 杜正恭
    日期: 2002
    出版者: Electrochemical Society
    關聯: J. Electrochem. Soc., Volume 149, Issue 7, pp. H129-H133 (2002)
    关键词: yttrium compounds
    europium
    phosphors
    cathodoluminescence
    field emission displays
    electrodeposits
    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 (5×10–8 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/m2 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 %.
    URI: http://www.electrochem.org/
    http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/53122
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