Graphene nanoribbons under mechanical strain

doi:10.1002/adma.201403750

. 2015 Jan 14;27(2):303-9.

doi: 10.1002/adma.201403750. Epub 2014 Oct 29.

Graphene nanoribbons under mechanical strain

Changxin Chen¹, Justin Zachary Wu, Kai Tak Lam, Guosong Hong, Ming Gong, Bo Zhang, Yang Lu, Alexander L Antaris, Shuo Diao, Jing Guo, Hongjie Dai

Affiliations

Affiliation

¹ Department of Chemistry and Laboratory for Advanced Materials, Stanford University, Stanford, California, 94305, USA; Key Laboratory for Thin Film and Micro fabrication of the Ministry of Education, National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China.

PMID: 25355690
DOI: 10.1002/adma.201403750

Graphene nanoribbons under mechanical strain

Changxin Chen et al. Adv Mater. 2015.

. 2015 Jan 14;27(2):303-9.

doi: 10.1002/adma.201403750. Epub 2014 Oct 29.

Authors

Changxin Chen¹, Justin Zachary Wu, Kai Tak Lam, Guosong Hong, Ming Gong, Bo Zhang, Yang Lu, Alexander L Antaris, Shuo Diao, Jing Guo, Hongjie Dai

Affiliation

¹ Department of Chemistry and Laboratory for Advanced Materials, Stanford University, Stanford, California, 94305, USA; Key Laboratory for Thin Film and Micro fabrication of the Ministry of Education, National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China.

PMID: 25355690
DOI: 10.1002/adma.201403750

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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Graphene nanoribbons under mechanical strain

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Graphene nanoribbons under mechanical strain

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