title: Tetracyanoethylene oxide- functionalized graphene and graphite characterized by Raman and Auger spectroscopy.
abstract: The tetracyanoethylene oxide (TCNEO) functionalization of chemical vapor deposition grown large area graphene and graphite was performed using reaction of TCNEO with carbon surface in chlorobenzene. The successful functionalization has been confirmed by Raman and Auger spectroscopy, and by numerical modeling of the structure and vibrational modes of TCNEO-functionalized graphene. Raman spectra of TCNEO-functionalized graphene and graphite show several groups of lines corresponding to vibrations of attached carbonyl ylide. One of key signatures of TCNEO attachment is the high intensity Raman band at ~1450 cm-1, which represents the C-C=C in plane vibrations in functionalization-distorted graphene. Raman spectra indicate the existence of central (pristine) attachment of TCNEO to graphene surface.
authors.affiliation: Department of Chemistry, New Mexico Tech, Socorro, NM 87801, USA.
authors.forename: Liliya V
authors.initials: LV
authors.lastname: Frolova
authors.affiliation: Department of Chemistry, New Mexico Tech, Socorro, NM 87801, USA.
authors.forename: Igor V
authors.initials: IV
authors.lastname: Magedov
authors.affiliation: Department of Chemistry, New Mexico Tech, Socorro, NM 87801, USA.
authors.forename: Aaron
authors.initials: A
authors.lastname: Harper
authors.affiliation: Department of Physics, New Mexico State University, Las Cruces, NM 88003, USA.
authors.forename: Sanjiv K
authors.initials: SK
authors.lastname: Jha
authors.affiliation: Department of Materials Engineering, New Mexico Tech, Socorro, NM 87801, USA.
authors.forename: Mekan
authors.initials: M
authors.lastname: Ovezmyradov
authors.affiliation: Department of Materials Engineering, New Mexico Tech, Socorro, NM 87801, USA.
authors.forename: Gary
authors.initials: G
authors.lastname: Chandler
authors.affiliation: Department of Materials Engineering, New Mexico Tech, Socorro, NM 87801, USA.
authors.forename: Jill
authors.initials: J
authors.lastname: Garcia
authors.affiliation: Center for Integrated Nanotechnologies and Sandia National Laboratories, Albuquerque, NM 87185, USA.
authors.forename: Donald
authors.initials: D
authors.lastname: Bethke
authors.affiliation: Center for Integrated Nanotechnologies and Sandia National Laboratories, Albuquerque, NM 87185, USA.
authors.forename: Eric A
authors.initials: EA
authors.lastname: Shaner
authors.affiliation: Department of Physics, New Mexico State University, Las Cruces, NM 88003, USA.
authors.forename: Igor
authors.initials: I
authors.lastname: Vasiliev
authors.affiliation: Department of Chemistry, New Mexico Tech, Socorro, NM 87801, USA ; Department of Materials Engineering, New Mexico Tech, Socorro, NM 87801, USA.
authors.forename: Nikolai G
authors.initials: NG
authors.lastname: Kalugin