Comparison of Chemical Vapor Sensing Properties between Graphene and Carbon Nanotubes
- Comparison of Chemical Vapor Sensing Properties between Graphene and Carbon Nanotubes
- Hyung Goo Park; Sukju Hwang; Juhwan Lim; Duck-Hwan Kim; In Sang Song; 김재헌; 우덕하; 이석; Seong Chan Jun
- Graphene; Carbon Nanotubes; Chemical vapor sensing
- Issue Date
- Japanese journal of applied physics
- VOL 51, NO 4, 045101-1-045101-5
- 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.
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