Author/Authors :
Frolova، نويسنده , , Liliya V. and Magedov، نويسنده , , Igor V. and Harper، نويسنده , , Aaron and Jha، نويسنده , , Sanjiv K. and Ovezmyradov، نويسنده , , Mekan and Chandler، نويسنده , , Gary and Garcia، نويسنده , , Jill and Bethke، نويسنده , , Donald and Shaner، نويسنده , , Eric A. and Vasiliev، نويسنده , , Igor and Kalugin، نويسنده , , Nikolai G.، نويسنده ,
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–CC in plane vibrations in functionalization-distorted graphene. Raman spectra indicate the existence of central (pristine) attachment of TCNEO to graphene surface.
