Title :
Measurements and analysis of advanced field emission cold cathodes
Author :
He, X. ; Scharer, J. ; Booske, J. ; Vlahos, V. ; Sengele, S. ; Jordan, N. ; Gilgenbach, R. ; Feng, Y. ; Verboncoeur, J.
Author_Institution :
Univ. of Wisconsin-Madison, Madison
Abstract :
We report measurements and analyses of field emission from both copper and aluminum cathodes. To analyze the data, we have developed a numerical model of electron emission. We note that localized heating of high current density field emission cathodes can provide regime where thermionic as well as field emission effects must be considered. Our analysis of experimental data fitting in both the thermionic and field emission dominant regime provides a robust method for determination of effective work function and field enhancement factor for field emission cathode.
Keywords :
aluminium; cathodes; copper; current density; electron field emission; thermionic electron emission; tunnelling; work function; Al; Cu; aluminum cathodes; copper cathodes; effective work function; electron emission model; field emission analysis; field emission cold cathode measurements; field enhancement factor; thermionic emission; Aluminum; Cathodes; Copper; Current density; Data analysis; Electron emission; Heating; Numerical models; Robustness; Thermionic emission;
Conference_Titel :
Vacuum Nanoelectronics Conference, 2007. IVNC. IEEE 20th International
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4244-1133-7
Electronic_ISBN :
978-1-4244-1134-4
DOI :
10.1109/IVNC.2007.4480922
