title: Probing Bilayer Grain Boundaries in Large-Area Graphene with Tip-Enhanced Raman Spectroscopy.
abstract: The bilayer grain boundaries (GBs) in chemical-vapor-deposition-grown large-area graphene are identified using multispectral tip-enhanced Raman imaging with 18 nm spatial resolution. The misorientation angle of the bilayer GBs is determined from a quantitative analysis of the phonon-scattering properties associated with the modified electronic structure.
authors.affiliation: Department of Physics, Department of Chemistry, and JILA, University of Colorado, Boulder, CO, 80309, USA.
authors.forename: Kyoung-Duck
authors.initials: KD
authors.lastname: Park
authors.affiliation: Department of Physics, Department of Chemistry, and JILA, University of Colorado, Boulder, CO, 80309, USA.
authors.forename: Markus B
authors.initials: MB
authors.lastname: Raschke
authors.affiliation: Department of Chemistry, University of North Carolina, Chapel Hill, NC, 27599, USA.
authors.forename: Joanna M
authors.initials: JM
authors.lastname: Atkin
authors.affiliation: Center for Integrated Nanostructure Physics, Institute for Basic Science, Sungkyunkwan University, Suwon, 440-746, Republic of Korea.|Department of Energy Science, Sungkyunkwan University, Suwon, 440-746, Republic of Korea.
authors.forename: Young Hee
authors.initials: YH
authors.lastname: Lee
authors.affiliation: Center for Integrated Nanostructure Physics, Institute for Basic Science, Sungkyunkwan University, Suwon, 440-746, Republic of Korea.|Department of Energy Science, Sungkyunkwan University, Suwon, 440-746, Republic of Korea.
authors.forename: Mun Seok
authors.initials: MS
authors.lastname: Jeong
keywords: bilayer graphene; grain boundaries; hybridization; sp3; stacking angles; tip-enhanced Raman spectroscopy (TERS); wrinkles