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Energy band-structure estimation of semiconductor nanotubes with consideration of momentum space quantization
S SIKDAR, , B N CHOWDHURY
Published in Institute of Electrical and Electronics Engineers Inc.
2018
Pages: 1 - 4
Abstract
In the current work, the effect of quantum confinement in the band structure of semiconductor nanotubes is investigated. The confinement of electrons in the momentum space is incorporated in sp 3 s∗ model to determine band structure of the nanotubes. The spherically symmetric r-point of nanotube energy bands is observed to split into cylindrically symmetric r′ and spherically symmetric r″ points due to confinement in transverse directions. Such splitting of r-point leads to increase the band gap ofnanotubes which further increases to a large extent with the decrease of nanotube core diameter and wall thickness. Such semiconductor nanotubes exhibit novel properties which can be exploited for developing novel quantum electronic devices. © 2018 IEEE.
About the journal
JournalData powered by Typeset2018 International Symposium on Devices, Circuits and Systems, ISDCS 2018
PublisherData powered by TypesetInstitute of Electrical and Electronics Engineers Inc.
Open AccessNo