Nitrogen-Doped Graphene: Efficient Growth, Structure, and Electronic Properties
Författare
Summary, in English
A novel strategy for efficient growth of nitrogen-doped graphene (N-graphene) on a large scale from s-triazine molecules is presented. The growth process has been unveiled in situ using time-dependent photoemission. It has been established that a postannealing of N-graphene after gold intercalation causes a conversion of the N environment from pyridinic to graphitic, allowing to obtain more than 8096 of all embedded nitrogen in graphitic form, which is essential for the electron doping in graphene. A band gap, a doping level of 300 meV, and a charge-carrier concentration of similar to 8 x 10(12) electrons per cm 2, induced by 0.4 atom % of graphitic nitrogen, have been detected by angle-resolved photoeinission spectroscopy, which offers great promise for implementation of this system in next generation electronic devices.
Avdelning/ar
Publiceringsår
2011
Språk
Engelska
Sidor
5401-5407
Publikation/Tidskrift/Serie
Nano Letters
Volym
11
Issue
12
Dokumenttyp
Artikel i tidskrift
Förlag
The American Chemical Society (ACS)
Ämne
- Nano Technology
Nyckelord
- Graphene
- nitrogen doping
- electronic structure
- synthesis
- triazine
- ARPES
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1530-6992