We fabricated Spindt-type field emitters with four kinds of cathode materia
l (Au, Ni, Pt, and Mo) and estimated the emission characteristics. The Pt e
mitter showed the best emission characteristics with the lowest operating v
oltage and the most stable emission among the four kinds of emitters. The d
ifference of the operating voltage among the cathode material is attributed
to the emitter shape. The reason the Pt emitter showed stable emission is
its inert surface. Pt is a promising material for Spindt-type field emitter
s from the cone shape, melting point, and inert surface. (C) 1999 Elsevier
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