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Applied Physics Letters / Volume 96 / Issue 14 / NANOSCALE SCIENCE AND DESIGN

Appl. Phys. Lett. 96, 143101 (2010); http://dx.doi.org/10.1063/1.3373592 (3 pages)

Strain states in a quantum well embedded into a rolled-up microtube: X-ray and photoluminescence studies

Ch. Deneke1, A. Malachias2,3, S. Kiravittaya1, M. Benyoucef1, T. H. Metzger2, and O. G. Schmidt1

1Institute for Integrative Nanosciences, IFW Dresden, Helmholtzstrasse 20, D-01069 Dresden, Germany
2European Synchrotron Radiation Facility, Boîte Postale 220, F-38043 Grenoble Cedex, France
3Laboratorio Nacional de Luz Sincrotron, Caixa Postal 6192, CEP 13083-970 Campinas, Sao Paulo, Brazil

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(Received 22 January 2010; accepted 5 March 2010; published online 5 April 2010)

The shift in the optical response of a quantum well (QW) embedded in the wall of a rolled-up microtube along the tube axis is examined. The microtube is investigated by x-ray microdiffraction to deduce the strain state of the rolled-up heterostructure. Using these results, the optical response of the QW is calculated. A good agreement of the lattice parameters determined by diffraction and photoluminescence is found, if a double shell tube is assumed for certain parts of the tube. Our results indicate that a rolled-up multiwalled microtube experiences different strains on different windings at the same lateral position.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

aluminium compounds, gallium arsenide, III-V semiconductors, indium compounds, internal stresses, lattice constants, photoluminescence, semiconductor quantum wells, X-ray diffraction

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3373592

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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