DNA-decorated graphene chemical sensors

被引：166

作者：

Lu, Ye ^{[1
]}

Goldsmith, B. R. ^{[1
]}

Kybert, N. J. ^{[1
]}

Johnson, A. T. C. ^{[1
]}

机构：

[1] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

来源：

APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 08期

基金：

美国国家科学基金会;

关键词：

chemical sensors; DNA; graphene; MOLECULAR-DYNAMICS; CARBON NANOTUBES; FILMS; SIO2;

D O I：

10.1063/1.3483128

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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. (C) 2010 American Institute of Physics. [doi:10.1063/1.3483128]

引用

页数：3

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