Journal
PHYSICS LETTERS A
Volume 376, Issue 4, Pages 559-562Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physleta.2011.10.055
Keywords
Nitrogen vacancy; Graphene nanoribbons; Electron transport; Gas sensor
Categories
Funding
- Hunan Science and Technology Bureau planned project [2010FJ4130]
- National Natural Science Foundation of China [11074213, 51006086]
Ask authors/readers for more resources
We study the electron transport of nitrogen-vacancy zigzag graphene nanoribbons (ZGNRs) absorbing gas molecules. It is found that the nitrogen-vacancy ZGNRs are more sensitive to the gas molecules than the pristine ZGNRs. The gas molecules absorbed on the three-nitrogen vacancies lead to sharp resonant peaks on conductance, while those absorbed on the four-nitrogen vacancies lead to anti-resonant dips. Each kind of gas molecule can be detected by its own unique (different energy) resonant peaks (or dips). This indicates that the nitrogen vacancy can enhance the sensitivity to gas molecules, i.e., nitrogen-vacancy ZGNRs can serve as better gas sensors. (C) 2011 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available