Jump to main content
Jump to site search

Issue 19, 2020
Previous Article Next Article

Graphene nanoribbons as flexible docks for chemiresistive sensing of gas phase explosives

Author affiliations

Abstract

Interpretation of chemiresistive sensor measurements is made difficult by the fact that similar conductance changes may be produced by different adsorbed species. This fundamental ambiguity may be addressed by formulating a new docking paradigm. Instead of decorating graphene with ligands whose structure is well suited to bind with a particular target molecule, a generic dock in the form of a flexible, semiconducting graphene nanoribbon (GNR) may be employed. If the deformed shape of the GNR is then varied, via mechanical actuation, a two dimensional signature (sensor current versus bias voltage and GNR deformation) of the target molecule may be obtained. Ab initio modeling results indicate that this signature may be used to distinguish explosives from background gases and to discriminate between chemically similar explosives.

Graphical abstract: Graphene nanoribbons as flexible docks for chemiresistive sensing of gas phase explosives

Back to tab navigation

Supplementary files

Article information


Submitted
13 Feb 2020
Accepted
01 May 2020
First published
01 May 2020

Nanoscale, 2020,12, 10730-10736
Article type
Paper

Graphene nanoribbons as flexible docks for chemiresistive sensing of gas phase explosives

J. Zhang and E. P. Fahrenthold, Nanoscale, 2020, 12, 10730
DOI: 10.1039/D0NR01237H

Social activity

Search articles by author

Spotlight

Advertisements