Sub-ppt gas detection with pristine graphene

Graphene is widely regarded as one of the most promising materials for sensor applications. Here, we demonstrate that a pristine graphene can detect gas molecules at extremely low concentrations with detection limits as low as 158 parts-per-quadrillion (ppq) for a range of gas molecules at room temp...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2012-07, Vol.101 (5), p.53119
Main Authors: Chen, Gugang, Paronyan, Tereza M., Harutyunyan, Avetik R.
Format: Article
Language:English
Subjects:
Cleaning
Detection
Flexibility
Graphene
Low concentrations
Platforms
Sensors
Ultraviolet
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Graphene is widely regarded as one of the most promising materials for sensor applications. Here, we demonstrate that a pristine graphene can detect gas molecules at extremely low concentrations with detection limits as low as 158 parts-per-quadrillion (ppq) for a range of gas molecules at room temperature. The unprecedented sensitivity was achieved by applying our recently developed concept of continuous in situ cleaning of the sensing material with ultraviolet light. The simplicity of the concept, together with graphene's flexibility to be used on various platforms, is expected to intrigue more investigations to develop ever more sensitive sensors.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4742327