Thin-walled boron nitride microtubes exhibiting intense band-edge UV emission at room temperature

Huang, Yang, Bando, Yoshio, Tang, Chengchun, Zhi, Chunyi, Terao, Takeshi, Dierre, Benjamin, Sekiguchi, Takashi and Golberg, Dmitri (2009) Thin-walled boron nitride microtubes exhibiting intense band-edge UV emission at room temperature. Nanotechnology, 20 8: Article number 085705. doi:10.1088/0957-4484/20/8/085705


Author Huang, Yang
Bando, Yoshio
Tang, Chengchun
Zhi, Chunyi
Terao, Takeshi
Dierre, Benjamin
Sekiguchi, Takashi
Golberg, Dmitri
Title Thin-walled boron nitride microtubes exhibiting intense band-edge UV emission at room temperature
Journal name Nanotechnology   Check publisher's open access policy
ISSN 0957-4484
Publication date 2009-02-01
Sub-type Article (original research)
DOI 10.1088/0957-4484/20/8/085705
Volume 20
Issue 8
Start page Article number 085705
Total pages 7
Place of publication United Kingdom
Publisher Institute of Physics Publishing Ltd.
Language eng
Formatted abstract
Boron nitride (BN) microtubes were synthesized in a vertical induction furnace using Li2CO3 and B reactants. Their structures and morphologies were investigated using x-ray diffraction, scanning and transmission electron microscopy, and energy-dispersive x-ray spectroscopy. The microtubes have diameters of 1-3 νm, lengths of up to hundreds of micrometers, and well-structured ultrathin walls only ∼50 nm thick. A mechanism combining the vapor-liquid-solid (VLS) and template self-sacrificing processes is proposed to explain the formation of these novel one-dimensional microstructures, in which the Li2O-B2O3 eutectic reaction plays an important role. Cathodoluminescence studies show that even at room temperature the thin-walled BN microtubes can possess an intense band-edge emission at ∼216.5 nm, which is distinct compared with other BN nanostructures. The study suggests that the thin-walled BN microtubes should be promising for constructing compact deep UV devices and find potential applications in microreactors and microfluidic and drug delivery systems.
Keyword Bn Nanotubes
Nanowires
System
Growth
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

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