Author: Egorov, N.V.
Paper Title Page
TUPPB048 The Multi-Tip Field Emission Cathode Mathematical Modeling 421
 
  • N.V. Egorov, E.M. Vinogradova
    Saint-Petersburg State University, Saint-Petersburg, Russia
 
  The multi-tip field cathode as the field emission cathode arrays for rectangular lattice is considered. The field emission cathodes are of interest for vacuum nano-scale electronic devices. The electrostatic potential distribution is presented for the periodic system of free-number thin tips on a plane substrate as a field emission cathode and a plane substrate as an anode. The tips shape may be various. The potential of the substrate and cathode is equal the zero, the anode's potential is equal a constant. The effect of space charge is neglected. The each tip is represented as a system of the point charges. The point charges are determined to the zero equipotential coincides with the cathode's shape. The potential distribution is found for whole region of the field emission cathode arrays. The exact three-dimensional solution to the Laplace/Poisson equation has been obtained in the Cartesian coordinate system. This solution has direct applications in three-dimensional calculations of electron trajectories in micron- and submicron-sized field-emitter arrays.  
 
FRBOR03 Non-gated Field Emission Array as Low-Energy Electron Source: Experiment and Simulation 218
 
  • K.A. Nikiforov, L.I. Antonova, N.V. Egorov, V.V. Trofimov
    St. Petersburg State University, St. Petersburg, Russia
 
  A non-gated NbN on Si wafer field emission arrays are studied. The I-V measurements and emission characteristics of edge-shaped cathodes in atmosphere low-voltage regime are considered. Mathematical and computer models are presented. The current density obtained from experiment was up to 384 Ampere per square centimeter in emission area 9 sq.mm. Low-voltage regime (20 V) for near (~ 1mkm) interelectrode distance in diode configuration is discussed.  
 
TUPPB043 Program Complex for Vacuum Nanoelectronics Finite Element Simulations 409
 
  • K.A. Nikiforov, N.V. Egorov
    St. Petersburg State University, St. Petersburg, Russia
 
  The program complex in MATLAB intended for vacuum nanoelectronics simulations is described. Physical and mathematical models, computational methods and algorithms of program complex are presented. Electrostatic simulation of electron transport processes is discussed under electron massless approximation; current function method and Matlab PDE Toolbox finite element solutions are used. Developed program complex is able to simulate diode and triode structures with complicated submicron geometry, current-voltage characteristics, calculate electric field distribution, estimate electric line interaction. The modelling results by the example of two different triode structures are presented. Matlab stand-alone application with graphical user interface for demonstration purposes is presented.