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Acoustoelectric effect in fluorinated carbon nanotube in the absence of external electric field

Show simple item record Sakyi-Arthur, D. Mensah, S. Y. Adu, K. W. Dompreh, K. A. Edziah, R. Mensah, N. G 2021-09-15T12:55:08Z 2021-09-15T12:55:08Z 2020-01-23
dc.identifier.issn 23105496
dc.description 11p:, ill. en_US
dc.description.abstract Acoustoelectric effect (AE) in a non-degenerate Fluorine modified single walled carbon nanotube (FSWCNT) semiconductor is studied theoretically using the Boltzmann’s transport equation. The study is done in the hyper sound regime i.e. q 1, where q is the acoustic phonon wavenumber and is the electron mean free path. The results obtained are compared with that of undoped single walled carbon nanotube (SWCNT). The AE current density for FSWCNT is observed to be four orders of magnitude smaller than that of undoped SWCNT with increasing temperature, that is FSWCNT SWCNT .This is because the electron-phonon interactions in SWCNT are stronger than FSWCNT. Thus, there are more intra-mini-band electrons interacting with the acoustic phonons to generate a higher AE current in SWCNT than in FSWCNT. This has been observed experimentally, where the electrical resistance of FSWCNT is higher than pristine SWCNT i.e. R  20 MΩ . The study shows the potential for FSWCNT as an ultrasound current source density imaging (UCSDI) and AE hydrophone material. However, FSWCNT offers the potential for room temperature applications of acoustoelectric device but other techniques are needed to reduce the resistance 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 Acoustoelectric en_US
dc.subject Hypersound en_US
dc.title Acoustoelectric effect in fluorinated carbon nanotube in the absence of external electric field en_US
dc.type Article en_US

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