An ultrathin carbon nanoribbon study as a component of nanoelectromechanical devices

We investigated a carbon nanoribbon ( CNR) using atomistic simulations based on Tersoff - Brenner potential function. The CNR was obtained from a compressed ( 5,5) carbon nanotube ( CNT). The obtained CNR had a cross- sectional view as a binocular telescope structure composed of both sp(2) and sp(3) bonds. One carbon atom per ten carbon atoms had sp(3) bond. For the optimized structures, the residual forces on the CNR were 3- order higher than that on the CNR and the lattice constant of the CNR was higher 0.0624 angstrom than that of the CNT along the tube axis. The Young's modulus of the CNR was the same as that of the CNT whereas the critical strain of the CNR was significantly lower than that of the CNT because the residual stresses on the CNR was very higher than those on the CNT. The tensile force curve vs. the strain of the CNT was slightly higher than that of the CNR.