Comparison of chemical vapor sensing properties between graphene and carbon nanotubes

Hyung Goo Park; Sukju Hwang; Juhwan Lim; Duck Hwan Kim; In Sang Song; Jae Hun Kim; Deok Ha Woo; Seok Lee Woo; Seong Chan Jun

doi:10.1143/JJAP.51.045101

Comparison of chemical vapor sensing properties between graphene and carbon nanotubes

Hyung Goo Park, Sukju Hwang, Juhwan Lim, Duck Hwan Kim, In Sang Song, Jae Hun Kim, Deok Ha Woo, Seok Lee Woo, Seong Chan Jun

Department of Mechanical Engineering

Research output: Contribution to journal › Article

13 Citations (Scopus)

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.

Original language	English
Article number	045101
Journal	Japanese Journal of Applied Physics
Volume	51
Issue number	4 PART 1
DOIs	https://doi.org/10.1143/JJAP.51.045101
Publication status	Published - 2012 Apr 1

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All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy(all)

Cite this

Park, H. G., Hwang, S., Lim, J., Kim, D. H., Song, I. S., Kim, J. H., Woo, D. H., Woo, S. L., & Jun, S. C. (2012). Comparison of chemical vapor sensing properties between graphene and carbon nanotubes. Japanese Journal of Applied Physics, 51(4 PART 1), [045101]. https://doi.org/10.1143/JJAP.51.045101

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10.1143/JJAP.51.045101