Optical characterization of electrophoretically deposited phosphor

The optical performance of electrophoretically deposited phosphor (ZnS:Ag, P-22) was investigated. Densely packed and homogeneous deposits were made a s a function of applied voltage and duration of deposition to give a range of deposit densities. These deposits showed a similar packing structure and cathodoluminescent efficiency. The electrophoretic process itself and cond itions shown to enhance phosphor adhesion did not change the intrinsic effi ciency of the phosphor under a low excitation voltage of 1-4 kV, applicable to field emission displays. (C) 2001 The Electrochemical Society.