1. Change of the short-range scattering in the graphene covered with Bi 2 O 3 clusters
- Author
-
Bo Zhao, Taishi Chen, Dongzhi Fu, Yuyan Han, and Haiyang Pan
- Subjects
Materials science ,Annealing (metallurgy) ,Oxide ,chemistry.chemical_element ,Nanotechnology ,02 engineering and technology ,01 natural sciences ,law.invention ,Bismuth ,chemistry.chemical_compound ,law ,0103 physical sciences ,010306 general physics ,Graphene oxide paper ,Graphene ,business.industry ,Doping ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,chemistry ,Optoelectronics ,0210 nano-technology ,business ,Bilayer graphene ,Graphene nanoribbons - Abstract
In this work, we have studied the oxidation process of the bismuth doped graphene in the ambient air. Complete oxidation of the bismuth clusters and that of the graphene are firmly confirmed. The influence of oxygen on the graphene is characterized by means of Hall measurement and SdH oscillation. All transport measurements demonstrate a hole-type doping behavior. Our work also demonstrates that the short-range scattering mechanism is enhanced in doped graphene due to accumulated O-species adsorbates after being exposed in the atmosphere for 40 days and is suppressed after annealing. This investigation may open a new perspective for fabricating the graphene metal oxide devices.
- Published
- 2016