Theoretical study of current-voltage characteristics of carbon nanotube wire functionalized with hydrogen atoms

Abstract

A functionalized single-walled carbon nanotube (SWCNT) of a finite length with a ring-like hydrogenation around its surface is designed toward fabrication of a molecular field-effect transistor (FET) device. The molecular wire thus designed is equipped with a quantum dot inside, which is confirmed by theoretical analysis for electronic transport. In particular, the current-voltage (I-V) characteristics under influence of the gate voltage are discussed in details.

Investigation on nickel ferrite nanowire device exhibiting negative differential resistance — a first-principles investigation

“…In that case, the mobility is recorded to be more in these energy intervals in the transmission spectrum [57]. This gives rise to a certain peak maximum in the transmission spectrum of NiFe 2 O 4 nanowire device [58]. However, on increasing the bias voltage across NiFe 2 O 4 scattering region, the transmission pathways increase along the NiFe 2 O 4 nanowire; this gives rise to a shift in the peak maximum [59].…”

Tunable SnO2 Nanoribbon by Electric Fields and Hydrogen Passivation

“…The electrons near the Fermi level contribute to electronic transport property in SnO 2 nanoribbon. The orbital delocalization near the Fermi level results in high mobility of electrons which corresponds to certain peak amplitudes in the transmission spectrum [44,45]. The current through the system is calculated using the Landauer-Büttiker formula: [46,47], where is the electron charge, ℎ is Planck's constant, ( , ) is the transmission band; the location of peaks is similar to A-SnO 2 NRs in conduction band.…”