Convert Graphene Sheets to Boron Nitride and Boron Nitride-carbon Sheets via a Carbon-substitution Reaction

Journal Article · Sat Dec 31 00:00:00 EST 2011 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3593492· OSTI ID:1041794

Han, W; Yu, H; Liu, Z

Here we discuss our synthesis of highly crystalline pure boron nitride (BN) and BN-carbon (BN-C) sheets by using graphene sheets as templates via a carbon-substitution reaction. Typically, these sheets are several micrometers wide and have a few layers. The composition ratios of BN-C sheets can be controlled by the post-treatment (remove carbon by oxidation) temperature. We also observed pure BN and BN-C nanoribbons. We characterized the BN-C sheets via Raman spectroscopy and density functional theory calculations. The results reveal that BN-C sheets with an armchair C-BN chain, and embedded C2 or C6 units in BN-dominated regions energetically are the most favorable.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE SC OFFICE OF SCIENCE (SC)
• DOE Contract Number: DE-AC02-98CH10886
• OSTI ID: 1041794
• Report Number(s): BNL-97472-2012-JA; APPLAB; TRN: US201212%%206
• Journal Information: Applied Physics Letters, Vol. 98, Issue 20; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BORON
BORON NITRIDES
CARBON
CARBON ADDITIONS
DENSITY FUNCTIONAL METHOD
LAYERS
OXIDATION
RAMAN SPECTROSCOPY
SHEETS
SYNTHESIS
UNITS