COLD EMISSION FROM THE SINGLE-CRYSTALLINE MICROPARTICLE OF DIAMOND ONA SI TIP

Single crystalline diamond particles were grown on the ends of sharp s ilicon tips. The typical form of the particles was cubooctahedron with a (111) plane on the top. Field emission experiments of Si emitters w ith single crystalline diamond coating demonstrated hysteresis and nor mal emission modes. In the hysteresis mode, emission saturated at abou t 2 mu A. Fowler-Nordheim plots for data points below the saturation l imit were nonlinear. Transformation from hysteresis to normal behavior occurred with increasing voltage. A modified model-of emission throug h dielectric layers was proposed for explanation of emission propertie s of diamond. (C) 1996 American Vacuum Society.