Semiconducting boron carbonitride nanostructures: Nanotubes and nanofibers

Abstract

Highly oriented boron carbonitride (BCN) nanostructures consisting of nanotubes and nanofibers have been synthesized by bias-assisted hot-filament chemical vapor deposition from the source gases of B2H6, CH4, N2, and H2. It is found that the B concentration of the BCN nanostructures increases with increasing B2H6 in the gas mixture, and the highest B concentration is 45 at. %. Photoluminescence spectrum shows that the BCN nanostructures, identified as B0.34C0.42N0.24, are semiconductors with a band gap energy of around 1.0 eV.

Formation and electronic properties ofBC3single-wall nanotubes upon boron substitution of carbon nanotubes

“…3 It also opens a series of basic scientific questions regarding, e.g., charge transfer between B and C atoms, band-structure change, and charge-carrier localization. Recent studies [4][5][6][7] were mainly focused on boron and nitrogen doping of multiwalled carbon nanotubes (MWCNT). They have already successfully achieved boron or nitrogen incorporation by different procedures.…”

Study on Raman Spectroscopy and Purification of B-C-N Compound

“…The 1355 and 1572 cm -1 peaks correspond to the D and G bands of B-C-N compounds, respectively-this result agrees with those obtained in the study on B-C-N nanotubes. [18][19][20] Another confirmation of the disappearance of h-BN is the more obvious 1355 cm -1 peak in the spectroscopic characterization of the deposits on the cathode. The second-order Raman spectra at the range of high Raman shift can be assigned to a combination of D and G bands of graphite-like structures, [21,22] such as the 2592 cm -1 peak, in agreement with results obtained by X-ray diffraction and transmission electron microscopy.…”

Comparative study of BxNyCz nanojunctions fragments

“…Since the discovery of B X C Y N Z nanotubes in 1994 44 , several experimental [45][46][47][48][49][50][51][52][53][54][55][56][57] and theoretical [58][59][60][61][62][63][64][65][66] works have been done to understand of the properties of this new material. Theoretical studies have revealed that the electronic properties of B X C Y N Z nanotubes are unrestricted by geometrical structure and can be controlled by simply varying the chemical composition 61,67,68 .…”