Accurate determination of electrical conductance in carbon nanostructures

Abstract Electrical characterization of nanostructures, such as nanotubes and wires, is a demanding task that vital for future applications nanomaterials. The nanostructures should ideally be analyzed in free-standing state also allow other material characterizations to made the same individual nanostructures. Several methods have been used electrical carbon past. results are widely spread, both between different within materials. This raises questions regarding reliability their accuracy, there need measurement standard classification scheme nanotube Here we examine two-probe method performed inside transmission electron microscope detail, addressing specifically accuracy by which conductivity can determined. We show very reliable using suitable thermal cleaning contact points. linear resistance outermost wall thus accurately determined even highest crystallinity materials, where only few kΩ/μm. thereby valuable tool schemes various classes.