Comparison of Chemical Vapor Sensing Properties between Graphene and Carbon Nanotubes

Title
Comparison of Chemical Vapor Sensing Properties between Graphene and Carbon Nanotubes
Authors
Hyung Goo ParkSukju HwangJuhwan LimDuck-Hwan KimIn Sang Song김재헌우덕하이석Seong Chan Jun
Keywords
Graphene; Carbon Nanotubes; Chemical vapor sensing
Issue Date
2012-03
Publisher
Japanese journal of applied physics
Citation
VOL 51, NO 4, 045101-1-045101-5
Abstract
We demonstrated the chemical-vapor sensing properties of graphene and carbon nanotubes (CNTs) by comparing their performances based on the two-dimensional exposure ratio. In order to implement the gas sensing, two kinds of sensors were properly prepared via the highly oriented pyrolytic graphite (HOPG) and CNT-dispersing methods, which cover different sensing area each other. Although the area of graphene is three times smaller than that of CNTs, the excellent sensing performance of graphene in the various concentration of the target gas is shown in terms of the sensitivity, the reactivity, and response time. We concluded this experimental result by focusing on the surface to volume ratio.
URI
http://pubs.kist.re.kr/handle/201004/42130
ISSN
00214922
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KIST Publication > Article
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