Nitrogen-Doped Graphene: Efficient Growth, Structure, and Electronic Properties
Author
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.
Department/s
Publishing year
2011
Language
English
Pages
5401-5407
Publication/Series
Nano Letters
Volume
11
Issue
12
Document type
Journal article
Publisher
The American Chemical Society (ACS)
Topic
- Nano Technology
Keywords
- Graphene
- nitrogen doping
- electronic structure
- synthesis
- triazine
- ARPES
Status
Published
ISBN/ISSN/Other
- ISSN: 1530-6992