@article{120736,
  author = {K. N. Kudin and B. Ozbas and H. C. Schniepp and R. K. Prud{\textquoteright}homme and I.A. Aksay and R. Car},
  title = {Raman spectra of graphite oxide and functionalized graphene sheets},
  abstract = { We investigate Raman spectra of graphite oxide and functionalized graphene sheets with epoxy and hydroxyl groups and Stone-Wales and 5-8-5 defects by first-principles calculations to interpret our experimental results. Only the alternating pattern of single-double carbon bonds within the sp(2) carbon ribbons provides a satisfactory explanation for the experimentally observed blue shift of the G band of the Raman spectra relative to graphite. To obtain these single-double bonds, it is necessary to have sp(3) carbons on the edges of a zigzag carbon ribbon. },
  year = {2008},
  journal = {Nano Letters},
  volume = {8},
  pages = {36-41},
  month = {01/2008},
  isbn = {1530-6984},
  language = {eng},
}