Title :
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
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;
Conference_Titel :
Nanotechnology Materials and Devices Conference (NMDC), 2010 IEEE
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4244-8896-4
DOI :
10.1109/NMDC.2010.5649598
