Cathodoluminescence properties of SrY2S4 : Eu phosphor for application in field emission display

In this paper, we present thr first report characterizing the cathodolumine scent properties of SrY2S4:Eu. Firing the precursor pow der at 1300 degrees C for 8 h gives a luminescence efficiency of 2.8 lm/W at 2 kV and 4.8 lm/W at 5 kV. The emission peak of this phosphor is located at similar to 630 n m and the Commission International del'Eclairage coordinates are x = 0.63, y = 0.35. The optical properties of SrY2S4:Eu phosphor under UV or electron -beam excitation is investigated and the suitability for the application of field emission displays is discussed. (C) 2000 The Electrochemical Society . S001 3-4651(99)06-097-8, All rights reserved.