The conductance of the NC3 nanodevices: different partial substitution of carbon by nitrogen in graphite

The conductance properties of the two type NC3 nanodevices are investigated by ab initio method. The different substitution of carbon by nitrogen in graphite leads to different band gap energies. Consequently, the conductance of the two type devices appears a large discrepancy and diverse characteristics and each has its own merit. The connecting manner of the NC3 ribbon with electrodes results in different conductance as well. In general, the transport charge capacity alone the NC3 zigzag direction is well than another direction, especially for type 1. The optimization demonstrate type 1 is stable than type 2.