Non-linear contribution to intensity-voltage characteristics of gold nanowires

TranSIESTA: A Spice for Molecular Electronics

“…10 for a review). More recently the non-linear conductance [12][13][14][15] was investigated and the atomic structure 16,17 of these systems has been elucidated. There is general consensus on the experimental behavior of atomic contacts and, therefore, they constitute a good test system for theoretical methods.…”

Electrical properties of single and multiple poly(3,4-ethylenedioxythiophene) nanowires for sensing nitric oxide gas

“…Progress in advanced fabrication approaches has led to the use of various materials to produce nanowires, including gold [1], platinum [2], silicon dioxide [3], titanium dioxide [4,5], conducting polymer (CP) [6,7] and even DNA [8]. Nanowires present numerous unique and interesting optical and electrical characteristics because of the quantum confinement transportation phenomena, which differ from those associated with continuous bands in bulk materials [9,10].…”

Accurate electrical testing of individual gold nanowires by in situ scanning electron microscope nanomanipulators

“…However, the I-V curves recorded from these two points were linear and stable although their Ohmic contacts were not ideal. We deduced that loose contacts in reported work [1][2][3][4][6][7][8][9][10]12 could be the reason why there were the huge scatters in the testing data of gold nanowires.…”

“…Metallic nanowires have extensive applications as interconnecting leads and functional building blocks in nanodevices and nanoelectronics 1 because of their unique electrical properties. There is already significant effort on investigating the transport behavior [1][2][3][4][5][6][7][8][9][10][11][12] of individual metallic nanowires by means of various techniques, including prepatterned electrodes over deposited nanowires and use of scanning probes. 12 However, a common problem is that it is hard to obtain good and reproducible Ohmic contacts 6 at patterned electrode/nanowire and nanoprobe/nanowire interfaces during the measurement, which is believed to be the main reason why there is huge scatter in the electrical properties of individual metallic nanowires in reported work.…”

“…12 However, a common problem is that it is hard to obtain good and reproducible Ohmic contacts 6 at patterned electrode/nanowire and nanoprobe/nanowire interfaces during the measurement, which is believed to be the main reason why there is huge scatter in the electrical properties of individual metallic nanowires in reported work. [1][2][3][4][5][6][7][8]10,11 Nanomanipulator-based techniques are widely adopted using tungsten tips 4,6,9,10 as nanoprobes/nanotips. Unfortunately, tungsten tips are unavoidably covered by a thin layer of tungsten oxide during preparation or later during usage.…”