Optical, structural, and numerical investigations of GaAs/AlGaAs core-multishell nanowire quantum well tubes
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Fickenscher, M A; Shi, Teng; Jackson, Howard E; Smith, Leigh M; Yarrison-Rice, Jan M; Zheng, Changlin; Miller, Peter; Etheridge, Joanne; Gao, Qiang; Wong, Bryan M; Deshpande, Shriniwas; Jagadish, Chennupati; Tan, Hark Hoe
Description
The electronic properties of thin, nanometer scale GaAs quantum well tubes embedded inside the AlGaAs shell of a GaAs core-multishell nanowire are investigated using optical spectroscopies. Using numerical simulations to model cylindrically and hexagonally symmetric systems, we correlate these electronic properties with structural characterization by aberration-corrected scanning transmission electron microscopy of nanowire cross sections. These tubular quantum wells exhibit extremely high...[Show more]
dc.contributor.author | Fickenscher, M A | |
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dc.contributor.author | Shi, Teng | |
dc.contributor.author | Jackson, Howard E | |
dc.contributor.author | Smith, Leigh M | |
dc.contributor.author | Yarrison-Rice, Jan M | |
dc.contributor.author | Zheng, Changlin | |
dc.contributor.author | Miller, Peter | |
dc.contributor.author | Etheridge, Joanne | |
dc.contributor.author | Gao, Qiang | |
dc.contributor.author | Wong, Bryan M | |
dc.contributor.author | Deshpande, Shriniwas | |
dc.contributor.author | Jagadish, Chennupati | |
dc.contributor.author | Tan, Hark Hoe | |
dc.date.accessioned | 2015-12-13T22:18:23Z | |
dc.identifier.issn | 1530-6984 | |
dc.identifier.uri | http://hdl.handle.net/1885/71623 | |
dc.description.abstract | The electronic properties of thin, nanometer scale GaAs quantum well tubes embedded inside the AlGaAs shell of a GaAs core-multishell nanowire are investigated using optical spectroscopies. Using numerical simulations to model cylindrically and hexagonally symmetric systems, we correlate these electronic properties with structural characterization by aberration-corrected scanning transmission electron microscopy of nanowire cross sections. These tubular quantum wells exhibit extremely high quantum efficiency and intense emission for extremely low submicrowatt excitation powers in both photoluminescence and photoluminescence excitation measurements. Numerical calculations of the confined eigenstates suggest that the electrons and holes in their ground states are confined to extremely localized one-dimensional filaments at the corners of the hexagonal structure which extend along the length of the nanowire. | |
dc.publisher | American Chemical Society | |
dc.source | Nano Letters | |
dc.subject | Keywords: Aberration-corrected scanning transmission electron microscopies; Excitation spectroscopy; Hexagonal structures; High quantum efficiency; Numerical calculation; Numerical investigations; Photoluminescence excitation measurements; Structural characterizati excitation spectroscopy; modeling; Nanowire; quantum confinement | |
dc.title | Optical, structural, and numerical investigations of GaAs/AlGaAs core-multishell nanowire quantum well tubes | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 13 | |
dc.date.issued | 2013 | |
local.identifier.absfor | 020499 - Condensed Matter Physics not elsewhere classified | |
local.identifier.absfor | 100706 - Nanofabrication, Growth and Self Assembly | |
local.identifier.ariespublication | f5625xPUB2801 | |
local.type.status | Published Version | |
local.contributor.affiliation | Fickenscher, M A, University of Cincinnati | |
local.contributor.affiliation | Shi, Teng, University of Cincinnati | |
local.contributor.affiliation | Jackson, Howard E , University of Cincinnati | |
local.contributor.affiliation | Smith, Leigh M , University of Cincinnati | |
local.contributor.affiliation | Yarrison-Rice, Jan M , University of Miami | |
local.contributor.affiliation | Zheng, Changlin, Monash University | |
local.contributor.affiliation | Miller, Peter, Monash University | |
local.contributor.affiliation | Etheridge, Joanne, Monash University | |
local.contributor.affiliation | Gao, Qiang, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Wong, Bryan M, Sandia National Laboratories | |
local.contributor.affiliation | Deshpande, Shriniwas, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Tan, Hoe Hark, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Jagadish, Chennupati, College of Physical and Mathematical Sciences, ANU | |
local.description.embargo | 2037-12-31 | |
local.bibliographicCitation.issue | 3 | |
local.bibliographicCitation.startpage | 1016 | |
local.bibliographicCitation.lastpage | 1022 | |
local.identifier.doi | 10.1021/nl304182j | |
local.identifier.absseo | 970102 - Expanding Knowledge in the Physical Sciences | |
dc.date.updated | 2016-02-24T09:02:34Z | |
local.identifier.scopusID | 2-s2.0-84874999716 | |
local.identifier.thomsonID | 000316243800024 | |
Collections | ANU Research Publications |
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