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Issue 28, 2013
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A review of MBE grown 0D, 1D and 2D quantum structures in a nanowire

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Abstract

We review different strategies to achieve a three-dimensional energy bandgap modulation in a nanowire (NW) by the introduction of self-assembled 0D, 1D and 2D quantum structures, quantum dots (QDs), quantum wires (QWRs) and quantum wells (QWs). Starting with the well-known axial, radial (coaxial/prismatic) or polytypic quantum wells in GaN/AlN, GaAs/AlAs or wurtzite/zinc-blende systems, respectively, we move to more sophisticated structures by lowering their dimensionality. New recent approaches developed for the self-assembly of GaN quantum wires and InAs or AlGaAs quantum dots on single nanowire templates are reported and discussed. Aberration corrected scanning transmission electron microcopy is presented as a powerful tool to determine the structure and morphology at the atomic scale allowing for the creation of 3D atomic models that can help us to understand the enhanced optical properties of these advanced quantum structures.

Graphical abstract: A review of MBE grown 0D, 1D and 2D quantum structures in a nanowire

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Article information


Submitted
25 Mar 2013
Accepted
09 May 2013
First published
10 May 2013

J. Mater. Chem. C, 2013,1, 4300-4312
Article type
Feature Article

A review of MBE grown 0D, 1D and 2D quantum structures in a nanowire

M. D. L. Mata, X. Zhou, F. Furtmayr, J. Teubert, S. Gradečak, M. Eickhoff, A. Fontcuberta i Morral and J. Arbiol, J. Mater. Chem. C, 2013, 1, 4300
DOI: 10.1039/C3TC30556B

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