Modelling of emission processes in Matlab

Author

Nikiforov, K.

Author_Institution

St.-Peterburg State Univ., St. Petersburg, Russia

fYear

2014

fDate

June 30 2014-July 4 2014

Firstpage

128

Lastpage

128

Abstract

The Matlab PDE Toolbox and Comsol Multiphysics coupling with Matlab via LiveLink are used in mathematical and computer modeling of field electron emission from emitter-arrays, as well as from single tip field electron emitter. Physical and mathematical models, computational methods and algorithms of stand alone Matlab application with graphical user interface are presented. The simulation results by the example of two different diode structures are also presented. Two generic cone-shape and cylindrical wedge-shape non-gated emitter-array diodes are considered. The effects of the variations in device geometrical structure and parameters on its potential distribution, electric field, and emission current are discussed. The current variation rate with respect to the tip-collector distance is calculated.

Keywords

electron field emission; mathematics computing; Matlab; computer modeling; cone shape nongated emitter array diodes; current variation rate; cylindrical wedge shape nongated emitter array diodes; device geometrical structure; electric field; emission current; emission processes; field electron emission; graphical user interface; mathematical modeling; potential distribution; tip collector distance; Computational modeling; Computers; Couplings; Educational institutions; MATLAB; Mathematical model;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Technologies in Physical and Engineering Applications (ICCTPEA), 2014 International Conference on

Conference_Location

St. Petersburg

Print_ISBN

978-1-4799-5315-8

Type

conf

DOI

10.1109/ICCTPEA.2014.6893317

Filename

6893317