Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.



Conversion of h-BN into c-BN for tuning properties

Abstract

Boron nitride (BN) films containing different percentages of cubic phase contents were grown on (0001) sapphire substrate using a novel pulsed laser processing method. To synthesize cubic boron nitride (c-BN), the hexagonal boron nitride (h-BN) target was ablated by pulsed KrF laser (λ=248 nm) during the pulsed laser deposition process followed by pulsed laser annealing (PLA) with ArF laser (λ=193 nm). We performed a set of detailed characterization analysis on the fabricated BN films by Raman spectroscopy, X-ray diffraction (XRD), high resolution SEM, EBSD, and UV-Vis measurements. Raman spectroscopy was successfully utilized to identify the crystalline quality and to determine the fraction of c-BN phase quantitatively in the BN films. Here we report that c-BN phase content can be tuned by the laser energy density during the PLA treatment. The optical bandgap of the fabricated BN films was found to increase with increasing cubic phase content and a correlation was obtained between the optical bandgap and the c-BN phase content in the films. Details of the structure-property correlation and the possible applications of these films are discussed.

Back to tab navigation

Article information


Submitted
07 Feb 2020
Accepted
02 May 2020
First published
08 May 2020

This article is Open Access

Mater. Adv., 2020, Accepted Manuscript
Article type
Paper

Conversion of h-BN into c-BN for tuning properties

A. Haque and J. Narayan, Mater. Adv., 2020, Accepted Manuscript , DOI: 10.1039/D0MA00008F

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

Reproduced material should be attributed as follows:

  • For reproduction of material from NJC:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
  • For reproduction of material from PCCP:
    [Original citation] - Published by the PCCP Owner Societies.
  • For reproduction of material from PPS:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
  • For reproduction of material from all other RSC journals:
    [Original citation] - Published by The Royal Society of Chemistry.

Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.


Social activity

Search articles by author

Spotlight

Advertisements