Correlating Raman spectral signatures with carrier mobility in epitaxial graphene: a guide to achieving high mobility on the wafer scale.
/ Authors
J. Robinson, Maxwell T. Wetherington, J. Tedesco, P. Campbell, X. Weng, J. Stitt, M. Fanton, E. Frantz, D. Snyder, B. Vanmil
and 4 more authors
/ Abstract
We report a direct correlation between carrier mobility and Raman topography of epitaxial graphene (EG) grown on silicon carbide (SiC). We show the Hall mobility of material on SiC(0001) is highly dependent on thickness and monolayer strain uniformity. Additionally, we achieve high mobility epitaxial graphene (18100 cm(2)/(V s) at room temperature) on SiC(0001) and show that carrier mobility depends strongly on the graphene layer stacking.
Journal: Nano letters
DOI: 10.1021/nl901073g