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. 2015 Jan 14;27(2):303-9.
doi: 10.1002/adma.201403750. Epub 2014 Oct 29.

Graphene nanoribbons under mechanical strain

Changxin Chen  1 , Justin Zachary Wu, Kai Tak Lam, Guosong Hong, Ming Gong, Bo Zhang, Yang Lu, Alexander L Antaris, Shuo Diao, Jing Guo, Hongjie Dai
Affiliations

Graphene nanoribbons under mechanical strain

Changxin Chen et al. Adv Mater. .

Abstract

Uniaxial strains are introduced into individual graphene nanoribbons (GNRs) with highly smooth edges to investigate the strain effects on Raman spectroscopic and electrical properties of GNRs. It is found that uniaxial strain downshifts the Raman G-band frequency of GNRs linearly and tunes their bandgap significantly in a non-monotonic manner. The strain engineering of GNRs is promising for potential electronics and photonics applications.

Keywords: Raman spectroscopy; bandgap modulation; graphene nanoribbon field-effect transistors (GNRFETs); graphene nanoribbons; mechanical strain.

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