Sub-5 nm, globally aligned graphene nanoribbons on Ge(001)

Brian Kiraly, Andrew J. Mannix, Robert M. Jacobberger, Brandon L. Fisher, Michael S. Arnold, Mark C Hersam, Nathan P. Guisinger

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Graphene nanoribbons (GNRs) hold great promise for future electronics because of their edge and width dependent electronic bandgaps and exceptional transport properties. While significant progress toward GNR devices has been made, the field has been limited by difficulties achieving narrow widths, global alignment, and atomically pristine GNR edges on technologically relevant substrates. A recent advance has challenged these limits by using Ge(001) substrates to direct the bottom-up growth of GNRs with nearly pristine armchair edges and widths near ∼10 nm via atmospheric pressure chemical vapor deposition. In this work, the growth of GNRs on Ge(001) is extended to ultra-high vacuum conditions, resulting in the realization of GNRs with widths narrower than 5 nm. Armchair graphene nanoribbons oriented along Ge 〈110〉 surface directions are achieved with excellent width control and relatively large bandgaps. The bandgap magnitude and electronic uniformity of these sub-5 nm GNRs are well-suited for emerging nanoelectronic applications.

Original languageEnglish
Article number213101
JournalApplied Physics Letters
Volume108
Issue number21
DOIs
Publication statusPublished - May 23 2016

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graphene
electronics
ultrahigh vacuum
emerging
atmospheric pressure
transport properties
alignment
vapor deposition

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Kiraly, B., Mannix, A. J., Jacobberger, R. M., Fisher, B. L., Arnold, M. S., Hersam, M. C., & Guisinger, N. P. (2016). Sub-5 nm, globally aligned graphene nanoribbons on Ge(001). Applied Physics Letters, 108(21), [213101]. https://doi.org/10.1063/1.4950959

Sub-5 nm, globally aligned graphene nanoribbons on Ge(001). / Kiraly, Brian; Mannix, Andrew J.; Jacobberger, Robert M.; Fisher, Brandon L.; Arnold, Michael S.; Hersam, Mark C; Guisinger, Nathan P.

In: Applied Physics Letters, Vol. 108, No. 21, 213101, 23.05.2016.

Research output: Contribution to journalArticle

Kiraly, B, Mannix, AJ, Jacobberger, RM, Fisher, BL, Arnold, MS, Hersam, MC & Guisinger, NP 2016, 'Sub-5 nm, globally aligned graphene nanoribbons on Ge(001)', Applied Physics Letters, vol. 108, no. 21, 213101. https://doi.org/10.1063/1.4950959
Kiraly B, Mannix AJ, Jacobberger RM, Fisher BL, Arnold MS, Hersam MC et al. Sub-5 nm, globally aligned graphene nanoribbons on Ge(001). Applied Physics Letters. 2016 May 23;108(21). 213101. https://doi.org/10.1063/1.4950959
Kiraly, Brian ; Mannix, Andrew J. ; Jacobberger, Robert M. ; Fisher, Brandon L. ; Arnold, Michael S. ; Hersam, Mark C ; Guisinger, Nathan P. / Sub-5 nm, globally aligned graphene nanoribbons on Ge(001). In: Applied Physics Letters. 2016 ; Vol. 108, No. 21.
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