Bulk synthesis, growth mechanism and properties of highly pure ultrafine boron nitride nanotubes with diameters of sub-10 nm

Huang, Yang, Lin, Jing, Tang, Chengchun, Bando, Yoshio, Zhi, Chunyi, Zhai, Tianyou, Dierre, Benjamin, Sekiguchi, Takashi and Golberg, Dmitri (2011) Bulk synthesis, growth mechanism and properties of highly pure ultrafine boron nitride nanotubes with diameters of sub-10 nm. Nanotechnology, 22 14: Article number 145602. doi:10.1088/0957-4484/22/14/145602


Author Huang, Yang
Lin, Jing
Tang, Chengchun
Bando, Yoshio
Zhi, Chunyi
Zhai, Tianyou
Dierre, Benjamin
Sekiguchi, Takashi
Golberg, Dmitri
Title Bulk synthesis, growth mechanism and properties of highly pure ultrafine boron nitride nanotubes with diameters of sub-10 nm
Journal name Nanotechnology   Check publisher's open access policy
ISSN 0957-4484
Publication date 2011-04-01
Sub-type Article (original research)
DOI 10.1088/0957-4484/22/14/145602
Open Access Status Not Open Access
Volume 22
Issue 14
Start page Article number 145602
Total pages 9
Place of publication United Kingdom
Publisher Institute of Physics Publishing Ltd.
Language eng
Formatted abstract
As a structural analogue of the carbon nanotube (CNT), the boron nitride nanotube (BNNT) has become one of the most intriguing non-carbon nanostructures. However, up to now the pre-existing restrictions/limitations of BNNT syntheses have made the progress in their research rather modest. This work presents a new route toward the synthesis of highly pure ultrafine BNNTs based on a modified boron oxide (BO) CVD method. A new effective precursor - a mixture of Li 2O and B - has been proposed for the growth of thin, few-layer BNNTs in bulk amounts. The Li2O utilized as the precursor plays the crucial role for the present nanotube growth. The prepared BNNTs have average external diameters of sub-10nm and lengths of up to tens of νm. Electron energy loss spectrometry and Raman spectroscopy demonstrate the ultimate phase purity of the ultrafine BNNTs. Property studies indicate that the ultrafine nanotubes are perfect electrical insulators exhibiting superb resistance to oxidation and strong UV emission. Moreover, their reduced diameters lead to a dramatically decreased population of defects within the tube walls and result in the observation of near-band-edge (NBE) emission at room temperature.
Keyword Field-Emission Properties
Bn Nanotubes
Carbon Nanotubes
Multiwalled Nanotubes
Substitution-Reaction
Cathodoluminescence
Ropes
Spectroscopy
Temperature
Nanosheets
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
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