Abstract
The field electron emission characteristics from metallic substrates through glass tips has been recently published. In this paper we give details of the fabrication of these emitters as well as electron emission characteristics and current stability. The superior performance of these microemitters to previously described glass cathodes is demonstrated. A simple theoretical model of the electron emission process is presented. The hot electron emission process is modelled as occurring through a large Ohmic resistor. Such treatment allows the fitting of emission current data over a wide range of applied electric field. Comparison of the theoretical analysis with the typical hot electron emission model is discussed.
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