Facile synthesis of vertically aligned hexagonal boron nitride nanosheets hybridized with graphitic domains

Amir Pakdel, Xuebin Wang, Chunyi Zhi, Yoshio Bando, Kentaro Watanabe, Takashi Sekiguchi, Tomonobu Nakayama, Dmitri Golberg

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

Motivated by the recent quest for producing novel two dimensional nanomaterials, we developed a facile synthetic method for growing boron nitride-carbon (BN-C) phase-separated composite nanosheet coatings on silicon/silicon dioxide (Si/SiO 2) substrates. The coatings were composed of compact partially vertically aligned nanosheets with a nanoscale roughness. The majority of the obtained BN-C nanosheets were less than 5 nm in thickness, mostly consisting of 2-15 atomic layers. Electron energy loss spectroscopy, Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy revealed the natural sp 2 hybridization of the product, and cathodoluminescence spectroscopy measurements showed strong luminescence emission in the ultraviolet region at room temperature. Ultraviolet-visible spectroscopy demonstrated that the composite structure of alternating BN and C domains has different optical band gap features compared to pure h-BN nanosheets and graphenes, making it a promising material for further fundamental physical studies and potential applications in optoelectronics. Moreover, due to the rough morphology and nanoscale features of the BN-C coatings, they exhibited excellent water repellency (superhydrophobicity).

Original languageEnglish
Pages (from-to)4818-4824
Number of pages7
JournalJournal of Materials Chemistry
Volume22
Issue number11
DOIs
Publication statusPublished - 2012 Mar 21
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Facile synthesis of vertically aligned hexagonal boron nitride nanosheets hybridized with graphitic domains'. Together they form a unique fingerprint.

Cite this