Department of Physics Papers

Document Type

Journal Article

Date of this Version

2010

Abstract

Graphene is a two-dimensional material with exceptional electronic properties and enormous potential for applications. Graphene’s promise as a chemical sensor material has been noted but there has been little work on practical chemical sensing using graphene, and in particular, how chemical functionalization may be used to sensitize graphene to chemical vapors. Here we show one route towards improving the ability of graphene to work as a chemical sensor by using single stranded DNA as a sensitizing agent. The resulting devices show fast response times, complete and rapid recovery to baseline at room temperature, and discrimination between several similar vapor analytes.

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Suggested Citation:
Lu, Y., B.R. Goldsmith, N.J. Kybert, and A.T.C. Johnson. (2010). DNA-decorated graphene chemical sensors. Applied Physics Letters. 97, 083107.

Copyright 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

The following article appeared in Applied Physics Letters and may be found at http://dx.doi.org/10.1063/1.3483128.

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Date Posted: 27 October 2010

This document has been peer reviewed.