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Title: Embedded boron nitride domains in graphene nanoribbons for transport gap engineering

Journal Article · · Physical Review. B, Condensed Matter and Materials Physics
 [1];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. Autónoma de Barcelona, Barcelona (Spain). Catalan Inst. of Nanotechnology (CIN2); Inst. Catalana de Recerca i Estudis Avancats, Barcelona (Spain)

In this study, we numerically investigate the impact of boron nitride (BN) domains on the transport properties of graphene nanoribbons with lengths ranging from a few to several hundreds of nanometers and lateral size up to 4 nm. By varying the size and morphology of the BN islands embedded in the graphene matrix, a wide transport tunability is obtained from perfect insulating interfaces to asymmetric electron-hole transmission profiles, providing the possibility to engineer mobility gaps to improve device performances. Even in the low-density limit of embedded BN islands, transport properties are found to be highly dependent on both the BN-domain shape and the size with a strong tendency toward an insulating regime when increasing the number of ionic bonds in the ribbon. This versatility of conduction properties offers remarkable opportunities for transport gap engineering for the design of complex device architectures based on a newly synthesized one-atom hybrid layered material.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1565039
Journal Information:
Physical Review. B, Condensed Matter and Materials Physics, Vol. 86, Issue 16; ISSN 1098-0121
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

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Cited By (6)

Defective graphene domains in boron nitride sheets journal July 2019
Resonant tunnelling and negative differential conductance in graphene transistors journal April 2013
Ab initio spin-flip conductance of hydrogenated graphene nanoribbons: Spin-orbit interaction and scattering with local impurity spins journal July 2015
Ab initio spin-flip conductance of hydrogenated graphene nanoribbons: spin- orbit interaction and scattering with local impurity sites text January 2015
Resonant tunnelling and negative differential conductance in graphene transistors text January 2013
Ab initio spin-flip conductance of hydrogenated graphene nanoribbons: Spin-orbit interaction and scattering with local impurity spins text January 2015