Journal
PHYSICAL REVIEW B
Volume 82, Issue 7, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.82.073402
Keywords
-
Funding
- CREST in the Japan Science and Technology Agency
- Ministry of Education, Culture, Sports, Science and Technology of Japan [19540411]
- Grants-in-Aid for Scientific Research [19540411] Funding Source: KAKEN
Ask authors/readers for more resources
Free electron-hole (e-h) pair generation from excitons in armchair-edged graphene nanoribbons (AGNRs) is theoretically investigated. We consider the generation of free e-h pairs by the Auger ionization of exciton-exciton scattering. We calculate e-h pair-generation times in a tight-binding approximation and found that the times were of picosecond order for 1.2-2.5-nm-wide ribbons due to efficient scattering between excitons. Additionally, the environmental effects are found to largely influence the Auger ionization process. Our calculations reveal the important role of the Auger ionization of excitons in AGNRs. These findings are of crucial importance for the application of AGNRs to photoelectronic and optoelectronic devices.
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