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Absorption of acoustic phonons in fluorinated carbon nanotubes with non-parabolic, double periodic band

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dc.contributor.author Sekyi-Arthur, D.
dc.contributor.author Mensah, S. Y.
dc.contributor.author Mensah, N. G.
dc.contributor.author Dompreh, K. A.
dc.contributor.author Edziah, R.
dc.date.accessioned 2021-09-15T10:49:37Z
dc.date.available 2021-09-15T10:49:37Z
dc.date.issued 2016
dc.identifier.issn 23105496
dc.identifier.uri http://hdl.handle.net/123456789/6100
dc.description 13p:, ill. en_US
dc.description.abstract We studied theoretically the absorption of acoustic phonons in the hypersound regime in Fluorine modified Carbon Nanotube (F-CNT) ΓF –CNT and compared it to that of undoped Single Walled Nanotube (SWNT) ΓSW NT .Per the numerical analysis, the F-CNT showed less absorption to that of SWNT thus |Γ F −CNTq| < |Γ SW NTQ |. This is due to the fact that Fluorine is highly electronegative and weakens the walls of the SWNT. Thus, the πelectrons associated with to the Fluorine which causes less free charge carriers to interact with the phonons and hence changing the metallic properties of the SWNT to semiconductor by the doping process. From the graphs obtained, the ratio of hypersound absorption in SWNT to F-CNT at T = 45K is Γ(SW NT ) Γ(F −CNT ) ≈ 29 whilst at T = 55K, is Γ(SW NT ) Γ(F −CNT ) ≈ 9 and at T = 65K, is Γ(SW NT ) Γ(F −CNT ) ≈ 2. Clearly, the ratio decreases as the temperature increases en_US
dc.language.iso en en_US
dc.publisher University of Cape Coast en_US
dc.subject Carbon Nanotube en_US
dc.subject Fluorinated en_US
dc.subject Acoustic Effects en_US
dc.subject Hypersound en_US
dc.title Absorption of acoustic phonons in fluorinated carbon nanotubes with non-parabolic, double periodic band en_US
dc.type Article en_US


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