Title :
Strain effect on single and double walled carbon nanotubes
Author :
Wahab, Muhammad Abdul
Author_Institution :
Dept. of Electr. & Electron. Eng., United Int. Univ., Dhaka, Bangladesh
Abstract :
Atomistic quantum simulation is performed to study the band gap variation of single walled (SW) and double walled (DW) carbon nanotubes (CNTs) with uniaxial and torsional strain. For DW CNT the band gap variation with uniaxial or torsional strain depends on the band gap variation of each CNT from which DW CNT is constructed. The band gap of DW CNT is the minimum of band gaps of two CNTs it constituted with for every value of strain. The bonding energy between inner and outer tubes atoms has insignificant effect on band gap.
Keywords :
carbon nanotubes; energy gap; ionisation potential; C; atomistic quantum simulation; band gap variation; bonding energy; double walled carbon nanotubes; single walled carbon nanotubes; strain effect; torsional strain; uniaxial strain; Atomic force microscopy; Atomic measurements; Bonding; Capacitive sensors; Carbon nanotubes; Inorganic materials; Orbital calculations; Photonic band gap; Semiconductivity; Uniaxial strain;
Conference_Titel :
TENCON 2009 - 2009 IEEE Region 10 Conference
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-4546-2
Electronic_ISBN :
978-1-4244-4547-9
DOI :
10.1109/TENCON.2009.5395939
