Transport properties of epitaxial graphene grown on SiC substrate

Date
2017
Editor(s)
Advisor
Supervisor
Co-Advisor
Co-Supervisor
Instructor
Source Title
Optoelectronics and Advanced Materials, Rapid Communications
Print ISSN
1842-6573
Electronic ISSN
Publisher
National Institute of Optoelectronics
Volume
11
Issue
3-4
Pages
197 - 201
Language
English
Journal Title
Journal ISSN
Volume Title
Series
Abstract

In this study, the Hall effect measurement of graphene on SiC substrate was carried out as a function of temperature (12-300 K). Hall data were first analyzed to extract the temperature dependent mobilities and carrier densities of the bulk (3D) and two dimensional (2D) channels using a Simple Parallel Conduction Extraction Method (SPCEM) successfully. High carrier mobility 2.296 cm2/V.s from the graphene layer and low carrier mobility 813 cm2/V.s from the SiC were obtained at room temperature. By using SPCEM extracted data, 3D and 2D scattering mechanisms were analyzed and the dominant scattering mechanisms in low and high temperature regimes were determined. It was found that the transport was mainly determined by scattering processes in 2D graphene.

Course
Other identifiers
Book Title
Citation
Published Version (Please cite this version)