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

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


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 languageEnglish
Article number045101
JournalJapanese journal of applied physics
Issue number4 PART 1
Publication statusPublished - 2012 Apr

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)


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