Diameter dependency of characteristics of ultrathin Si nanowires

In the present paper, we have presented electronic and transport properties of silicon nanowire (SiNW) using density functional theory. Electronic and transport properties are computed for a different diameter of zigzag structure. These nanowires show metallic nature at a nano-scale. With increasing in diameter SiNWs are becoming more metallic. Out of 1R, 2R and 3R zigzag SiNWs, 1R zigzag serves a potential applicant as a electronic and thermal conducting material.