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Charge-Transport Tuning of Solution-Processable Graphene Nanoribbons by Substitutional Nitrogen Doping
Cited 33 time in
Web of Science
Cited 37 time in Scopus
- Authors
- Issue Date
- 2013-12
- Publisher
- WILEY-VCH Verlag GmbH
- Citation
- Macromolecular Chemistry and Physics Vol.214 No.23, pp. 2768-2773
- Keywords
- 공학 ; graphene nanoribbons ; nitrogen-doping ; n-type semiconducting propert ; solution processability ; thin-film transistors
- Abstract
- Novel nitrogen-doped graphene nanoribbons (GNR-Ns) are synthesized by the coupling reaction between a pyrazine (or benzene) derivative and naphthalene followed by cyclodehydrogenation. The amount of nitrogen doping in the GNR-Ns is controlled by changing the monomer feed ratio of pyrazine to benzene for polymerization. The electron mobility of the GNR-Ns increases while the hole mobility decreases, as the amount of nitrogen doping in the GNR increases, indicating that the charge-transport behavior of GNRs is changed from ambipolar to an n-type semiconductor. The threshold voltage of the GNR-Ns also shifts from 20 to ?6 V as the amount of nitrogen doping increases.
- ISSN
- 1022-1352 (print)
1022-1352 (online)
- Language
- English
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