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We received and compared the current-voltage characteristics (IVC) of the multi-tip field nanocomposite emitters in the slow and the fast high voltage scanning modes. We found two types of hysteresis on the emission characteristics plots in the same field experiment. The study of IVC form depending on the duration and amplitude of the scanning voltage was carried out.
In this paper we discuss first realization and preliminary parameters of the electronoptics MEMS column equipped with a field-emitting electron gun and an Einzel lens. The column is made in a form of the sandwiched silicon stack. Silicon elements are deep wet micromachined and placed in a polymer 3D printed holder. Cathode is made of carbon nanotubes deposited by use of the electrophoretic process...
We demonstrated high performance field emission of carbon nanotube (CNT) field emitters fabricated on a graphite rod. After the thermal annealing at 900 °C in vacuum ambient, the emitter showed a high emission current of 11.3 mA, corresponding to an emission current density of 5.8 A/cm2. The CNT emitter indicated a low turn-on field of 1.9 V/µm and stable emission stability at a current of 1 mA. In...
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