Spectroscopic investigation of nitrogen doped graphene
- Author(s)
- Ramakrishna Podila, Julio Chacon-Torres, Jennifer T. Spear, Thomas Pichler, Paola Ayala, Apparao Muralikrishna Rao
- Abstract
Current research efforts are aimed at controlling the electronic properties via doping graphene. Previously, dopant-induced changes in the Fermi velocity were observed to result in an effectively downshifted Raman peak below the G'-band for n-doped carbon nanotubes. However, in the case of N-doped graphene, we find that several Raman features vary depending upon both dopant concentration and its bonding environment. For instance, only pyridinic/pyrrolic dopants were observed to result in intense D/D'-bands with a concomitant downshift in the G'-band. Here, we correlate x-ray photoelectron measurements with Raman spectra to elucidate effects of dopant bonding configuration on vibrational properties of graphene.
- Organisation(s)
- Electronic Properties of Materials
- External organisation(s)
- Clemson University
- Journal
- Applied Physics Letters
- Volume
- 101
- No. of pages
- 4
- ISSN
- 0003-6951
- DOI
- https://doi.org/10.1063/1.4752736
- Publication date
- 2012
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 2020 Electrical Engineering, Electronics, Information Engineering
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/spectroscopic-investigation-of-nitrogen-doped-graphene(5372b9e2-84c6-451e-8400-151a52c8a0fb).html