Abstract
Li(2)CaSiO(4):Eu(2+) cyan phosphor screen for enlarging the color gamut of field emission display has been prepared and characterized. The luminance of Li(2)CaSiO(4):Eu(2+) phosphor film can reach as high as about 12000 cd/m(2) under the conditions of V(a) = 7 kV and J(a) = 2.8 mA/cm(2). The cathodoluminescent spectrum, luminance, saturation current density and degradation property are compared with another cyan phosphor Mg(2)SnO(4):Ti(4+),Mn(2+). It is found that Li(2)CaSiO(4):Eu(2+) phosphor exhibits narrower emission band, higher luminance, higher saturation current density, higher resistance to electron bombardment, higher thermal stability and conductivity as well as purer color. Thus, Li(2)CaSiO(4):Eu(2+) has great potential in application in field emission display as well as light emitting diode.
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