Electromagnetic Properties of CNTs and GNRs Based Nanostructures for Nanosensor Systems
Abstract
Fundamental electromagnetic properties of CNTs and GNRs nanostructures with functionalized atomic groups and their various interconnects with the essential concentration of "dangling bonds" are very sensitive to local external perturbations. The induced changes of local electronic density of states lead to correlated changes of current and spin states. The cluster approach based on the multiple scattering theory as well as an effective medium approximation were used to model the dispersion law, electronic density of states, conductivity, etc. Multiple scattering problems were solved for nanostructures with radial and axial symmetry. Parametrical numerical simulations of conductivity using the formalism of Kubo-Greenwood were carried out for zig-zag (m,0), armchair (m,m) and chiral (m,n) CNTs. The sensitivity of conductivity to the local electronic density of states in CNTs with local impurities (N and B atoms) was demonstrated to be promising for nanosensors.
- Publication:
-
Physics
- Pub Date:
- May 2013
- DOI:
- 10.1142/9789814460187_0062
- Bibcode:
- 2013pcan.conf..250S