NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Energy Band Gap Study of Semiconducting Single Walled Carbon Nanotube BundleThe electronic properties of multiple semiconducting single walled carbon nanotubes (s-SWCNTs) considering various distribution inside a bundle are studied. The model derived from the proposed analytical potential function of electron density for na individual s-SWCNT is general and can be easily applied to multiple nanotubes. This work demonstrates that regardless the number of carbon nanotubes, the strong coupling occurring between the closet neighbors reduces the energy band gap of the bundle by 10%. As expected, the coupling is strongly dependent on the distance separating the s-SWCNTs. In addition, based on the developed model, it is proposed to enhance this coupling effect by applying an electric field across the bundle to significantly reduce the energy band gap of the bundle by 20%.
Document ID
20150007369
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Elkadi, Asmaa
(Arkansas Univ. Fayetteville, AR, United States)
Decrossas, Emmanuel
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
El-Ghazaly, Samir
(Arkansas Univ. Fayetteville, AR, United States)
Date Acquired
May 5, 2015
Publication Date
August 5, 2013
Subject Category
Electronics And Electrical Engineering
Meeting Information
Meeting: 2013 IEEE International Symposium on Electromagnetic Compatibility
Location: Denver, CO
Country: United States
Start Date: August 5, 2013
End Date: August 9, 2013
Sponsors: Institute of Electrical and Electronics Engineers
Distribution Limits
Public
Copyright
Other
Keywords
semiconducting single-wall carbon nanotube
energy band gap
coupling effect
potential function

Available Downloads

There are no available downloads for this record.
No Preview Available