Graphene based NO2 gas sensor

Author

Hwang, Sukju ; Cho, Joon Hyong ; Lim, Juwhan ; Kim, Whan Kyun ; Shin, Hyunjin ; Choi, J.Y. ; Choi, J.H. ; Lee, Sang Yoon ; Kim, Jong M. ; Kim, Jae Hun ; Lee, Seok ; Jun, Seong Chan

Author_Institution

Mech. Eng., Yonsei Univ., Seoul, South Korea

fYear

2010

fDate

12-15 Oct. 2010

Firstpage

18

Lastpage

21

Abstract

Graphene is a two-dimensional monolayer comprised of carbon atoms. By its unique intrinsic properties, graphene has many advantages for gas sensing. In this paper, we find results of the gas sensing performance using uniform single crystal structure graphene by mechanical exfoliation method measured under room temperature, atmospheric pressure. Also, we discuss the effects of various thermal treatments on the graphene at atmospheric pressure. The sensitivity increases and recovery time decreases as measurement temperature increases.

Keywords

gas sensors; graphene; temperature sensors; NO₂; atmospheric pressure; carbon atoms; gas sensing performance; graphene based gas sensor; intrinsic property; measurement temperature; mechanical exfoliation method; single crystal structure graphene; temperature 293 K to 298 K; thermal treatments; two-dimensional monolayer; Electrical resistance measurement; Gas detectors; Materials; Resistance; Temperature measurement; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology Materials and Devices Conference (NMDC), 2010 IEEE

Conference_Location

Monterey, CA

Print_ISBN

978-1-4244-8896-4

Type

conf

DOI

10.1109/NMDC.2010.5649598

Filename

5649598