Skip navigation
Skip navigation
A change is coming. Click to see a sneak peek of the new Open Research Repository.

Narrowed bandgaps and stronger excitonic effects from small boron nitride nanotubes

Request a Copy

link to publisher version

  • Altmetric Citations

Yu, Jun X; Yu, Dehong; Chen, Ying; Chen, Hua; Lin, Meng-Yeh; Cheng, Bing-Ming; Li, Jianbao; Duan, Wenhui

Description

The bandgap of boron nitride nanotubes (BNNTs) is generally considered to be independent on tube radius and chirality. However, we have observed that the bandgaps of BNNTs do depend on the tube size. Photoluminescence excitation spectroscopy with variable photon energies in vacuum ultraviolet (VUV) range revealed that the bandgap becomes smaller when the tube diameter decreases. This is consistent with red-shifted luminescent emissions. The strong interactions between excitons and phonons are...[Show more]

dc.contributor.authorYu, Jun X
dc.contributor.authorYu, Dehong
dc.contributor.authorChen, Ying
dc.contributor.authorChen, Hua
dc.contributor.authorLin, Meng-Yeh
dc.contributor.authorCheng, Bing-Ming
dc.contributor.authorLi, Jianbao
dc.contributor.authorDuan, Wenhui
dc.date.accessioned2015-12-10T22:56:29Z
dc.identifier.issn0009-2614
dc.identifier.urihttp://hdl.handle.net/1885/60254
dc.description.abstractThe bandgap of boron nitride nanotubes (BNNTs) is generally considered to be independent on tube radius and chirality. However, we have observed that the bandgaps of BNNTs do depend on the tube size. Photoluminescence excitation spectroscopy with variable photon energies in vacuum ultraviolet (VUV) range revealed that the bandgap becomes smaller when the tube diameter decreases. This is consistent with red-shifted luminescent emissions. The strong interactions between excitons and phonons are possibly responsible for the bandgap narrowing as the function of nanotube size.
dc.publisherElsevier
dc.sourceChemical Physics Letters
dc.subjectKeywords: Band gap narrowing; Band gaps; Boron nitride nanotubes; Excitonic effect; In-vacuum; Luminescent emission; Photoluminescence excitation spectroscopy; Photon energy; Red-shifted; Strong interaction; Tube diameters; Tube size; Boron; Boron nitride; Nanotube
dc.titleNarrowed bandgaps and stronger excitonic effects from small boron nitride nanotubes
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume476
dc.date.issued2009
local.identifier.absfor030306 - Synthesis of Materials
local.identifier.ariespublicationU4105084xPUB530
local.type.statusPublished Version
local.contributor.affiliationYu, Jun X, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationYu, Dehong, Australian Nuclear Science and Technology Organisation
local.contributor.affiliationChen, Ying, Deakin University
local.contributor.affiliationChen, Hua, Deakin University
local.contributor.affiliationLin, Meng-Yeh, National Synchrotron Radiation Research Center
local.contributor.affiliationCheng, Bing-Ming, National Synchrotron Radiation Research Center
local.contributor.affiliationLi, Jianbao, Tsinghua University
local.contributor.affiliationDuan, Wenhui, Tsinghua University
local.description.embargo2037-12-31
local.bibliographicCitation.issue4-6
local.bibliographicCitation.startpage240
local.bibliographicCitation.lastpage243
local.identifier.doi10.1016/j.cplett.2009.06.012
dc.date.updated2016-02-24T10:36:13Z
local.identifier.scopusID2-s2.0-71849091622
CollectionsANU Research Publications

Download

File Description SizeFormat Image
01_Yu_Narrowed_bandgaps_and_stronger_2009.pdf464.01 kBAdobe PDF    Request a copy
Show simple item record


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  17 November 2022/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator