Algharagholy, Laith and Pope, Thomas and Al-Galiby, Qusiy and Sadeghi, Hatef and Bailey, Steven and Lambert, Colin J. (2015) Sensing single molecules with carbon-boronnitride nanotubes. Journal of Materials Chemistry C, 3 (39). pp. 10273-10276. ISSN 2050-7526
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Abstract
We investigate the molecular sensing properties of carbon nanotube-boron nitride-carbon nanotube (CNT-BN-CNT) junctions. We demonstrate that the electrical conductance of such a junction changes in response to the binding of an analyte molecule to the region of BN. The change in conductance depends on the length of the BN spacer and the position of the analyte and therefore we propose a method of statistically analysing conductance data. We demonstrate the ability to discriminate between analytes, by computing the conductance changes due to three analytes (benzene, thiol-capped oligoyne and a pyridyl-capped oligoyne) binding to junctions with five different lengths of BN spacer.