TY - JOUR
T1 - Facile synthesis of vertically aligned hexagonal boron nitride nanosheets hybridized with graphitic domains
AU - Pakdel, Amir
AU - Wang, Xuebin
AU - Zhi, Chunyi
AU - Bando, Yoshio
AU - Watanabe, Kentaro
AU - Sekiguchi, Takashi
AU - Nakayama, Tomonobu
AU - Golberg, Dmitri
PY - 2012/3/21
Y1 - 2012/3/21
N2 - 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).
AB - 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).
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U2 - 10.1039/c2jm15109j
DO - 10.1039/c2jm15109j
M3 - Article
AN - SCOPUS:84863178792
VL - 22
SP - 4818
EP - 4824
JO - Journal of Materials Chemistry
JF - Journal of Materials Chemistry
SN - 0959-9428
IS - 11
ER -