Title :
Energy band structure effect on the field-electron energy distribution from a single-walled carbon nanotube
Author :
Huang, N.Y. ; Chen, L. ; Liang, Shi-Dong ; Xu, N.S.
Author_Institution :
State Key Laboratory of Optoelectron. Mater. & Technol., Zhongshan Univ., Guangzhou, China
Abstract :
The energy band structure effect on field emission energy distribution (FEED) from a single-walled carbon nanotube (SWNT) has been investigated theoretically. Both single-peak and multi-peak characteristics of FEED have been found, which positions correspond to the position of the peaks of density of state (DOS) except for the peak around the Fermi energy for a metallic nanotube. The number and the width of the peaks of FEED strongly depend on the applied field and temperature. Based on the FEED, we have also calculated the average energy of emitted electrons from SWNT.
Keywords :
Fermi level; band structure; carbon nanotubes; electron field emission; electronic density of states; C; DOS; FEED; Fermi energy; SWNT; density of state; energy band structure effect; field-electron energy distribution; metallic nanotube; single-walled carbon nanotube; Brightness; Carbon nanotubes; Educational technology; Electron emission; Feeds; Flat panel displays; Laboratories; Organic materials; Semiconductivity; Temperature dependence;
Conference_Titel :
Vacuum Nanoelectronics Conference, 2005. IVNC 2005. Technical Digest of the 18th International
Print_ISBN :
0-7803-8397-4
DOI :
10.1109/IVNC.2005.1619510
