Cultural advice

The Australian National University acknowledges, celebrates and pays our respects to the Ngunnawal and Ngambri people of the Canberra region and to all First Nations Australians on whose traditional lands we meet and work, and whose cultures are among the oldest continuing cultures in human history.

Aboriginal and Torres Strait Islander peoples are advised that ANU Library collections may include images, names, voices, and other representations of deceased persons.

Material in the collection may contain terms, language or views that reflect the period in which the item was created and may be considered inappropriate today.

Temperature-dependent Raman spectra of bamboo-like boron nitride nanotubes

Thumbnail Image

Date

2014

Authors

Lu, Jian
Ren, Q J
Sun, Liaoxin
Yu, Jun X
Chen, Ying
Shen, Xuechu
Chen, Zhanghai H

Journal Title

Journal ISSN

Volume Title

Publisher

Japan Soc of Applied Physics

Abstract

Phonon properties of boron nitride nanotubes (BNNTs) were investigated using Raman spectroscopy at different temperatures and new sp3- bonded BN vibrations were identified. The Raman peak of the E2g mode of BNNTs is found to be downshifted and broadened compared to that of hexagonal BN at the same temperature. By increasing the temperature, the energy of the E2g mode and the sp3-bonding mode are downshifted, with the temperature coefficients being -0.010 and -0.069cm-1/K, respectively. We attribute this downshifting to anharmonic effects as well as the elongation of the B-N bond in BNNT structures with increasing temperature.

Description

Keywords

Citation

URI

http://hdl.handle.net/1885/68963

Collections

ANU Research Publications

Source

Applied Physics Express

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.7567/APEX.7.022401

Restricted until

2037-12-31

Downloads

File
Description
01_Lu_Temperature-dependent_Raman_2014.pdf (504.02 KB)

DSpace software copyright © 2002-2026 LYRASIS

abcd