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Browsing by Author "Nkrumah, G."

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Electronic properties of single-walled chiral carbon nanotube electronic properties of single-walled chiral carbon nanotube

Mensah, S.Y.; Allotey, F.K.A.; Mensah, N.G.; Nkrumah, G. (University of Cape Coast, 2001)

The electronic properties of single-walled chiral carbon nanotube has been studied using the model based on infinitely long carbon atoms wrapped along a base helix of single-walled carbon nanotubes(SWNTs). The problem is ...
Giant electrical power factor in single-walled chiral carbon nanotube

Mensah, S.Y.; Allotey, F.K.A.; Mensah, N.G.; Nkrumah, G. (University of Cape Coast, 2001)

Using the semiclassical approach we studied the thermoelectrical properties of a single-walled chiral carbon nanotubes (SWNTs). We predict a giant electrical power factor and hence proposed the use of carbon nanotubes as ...
Ground state energy of a polaron in a superlattice

Mensah, S. Y.; Allotey, F. K. A.; Nkrumah, G.; Mensah, N. G. (University of Cape Coast, 2000)

The ground state energy of a polaron in a superlattice was calculated using the double-time Green functions. The effective mass of the polaron along the lanes perpendicular to the superlattice axis was also calculated. The ...
The influence of external electric field on acoustoelectric effect in a superlattice

Mensah, S.Y.; Allotey, F.K.A.; Mensah, N.G.; Akrobotu, H.; Nkrumah, G. (University of Cape Coast, 2003)

The dc acoustoelectric current J" induced by the interaction of acoustic phonons with the conducting electrons is calculated. The calculation is done in the hypersound regime where q > I (here q is the acoustic phonon ...

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