Title :
Quantitative mapping of large area graphene conductance
Author :
Buron, Jonas D. ; Petersen, Dirch H. ; Bøggild, Peter ; Cooke, David G. ; Hilke, Michael ; Sun, Jie ; Whiteway, Eric ; Hansen, Ole ; Nielsen, Peter F. ; Yurgens, August ; Jepsen, Peter U.
Author_Institution :
Dept. of Photonics Eng., Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
We present quantitative mapping of large area graphene conductance by terahertz time-domain spectroscopy and micro four point probe. We observe a clear correlation between the techniques and identify the observed systematic differences to be directly related to imperfections of the graphene sheet on the length scale of several micrometers.
Keywords :
electrical conductivity; graphene; terahertz wave spectra; C; conductance; graphene; microfour point probe; quantitative mapping; terahertz time-domain spectroscopy; Area measurement; Correlation; Educational institutions; Electric variables measurement; Films; Probes;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on
Conference_Location :
Wollongong, NSW
Print_ISBN :
978-1-4673-1598-2
Electronic_ISBN :
2162-2027
DOI :
10.1109/IRMMW-THz.2012.6380224
