Title :
Calculation of field enhancement factor and screening effects in carbon nanotube arrays
Author :
Smith, R.C. ; Filip, L.D. ; Carey, J.D. ; Silva, S.R.P.
Author_Institution :
Univ. of Surrey, Guildford
Abstract :
Computational 3D simulations of individual carbon nanotubes (CNTs) and vertically aligned arrays of CNTs were conducted in order to gain insight into their field emission characteristics. We find that the widely used approximation that the enhancement factor is equal to the aspect ratio of the emitter to be an over-estimation, and that the enhancement factor is only loosely related to the aspect ratio, among other parameters.
Keywords :
carbon nanotubes; field emission; C; carbon nanotube arrays; computational 3D simulations; field emission; field enhancement factor; screening effects; vertically aligned arrays; Carbon nanotubes; Computational modeling; Electronic mail; Microelectronics; Predictive models;
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.2007.4480983
