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Post Epitaxial Disordering of CuPtB Ordered AIGaInP/GaInP for Microstructuring

Published online by Cambridge University Press:  10 February 2011

M. Bukard ,
A. Englert ,
C. Geng ,
F. Scholz  and
H. Schweizer
M. Bukard
Affiliation:
4. Phys. Institute, University of Stuttgart, Pfaffenwaldring 57, D-70550 Stuttgart;+49-711-685-4533, +49-711-685-5097,[email protected]
A. Englert
Affiliation:
4. Phys. Institute, University of Stuttgart, Pfaffenwaldring 57, D-70550 Stuttgart;+49-711-685-4533, +49-711-685-5097,[email protected]
C. Geng
Affiliation:
4. Phys. Institute, University of Stuttgart, Pfaffenwaldring 57, D-70550 Stuttgart;+49-711-685-4533, +49-711-685-5097,[email protected]
F. Scholz
Affiliation:
4. Phys. Institute, University of Stuttgart, Pfaffenwaldring 57, D-70550 Stuttgart;+49-711-685-4533, +49-711-685-5097,[email protected]
H. Schweizer
Affiliation:
4. Phys. Institute, University of Stuttgart, Pfaffenwaldring 57, D-70550 Stuttgart;+49-711-685-4533, +49-711-685-5097,[email protected]
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Abstract

Lateral order/disorder structures have been fabricated out of ordered GaInP quantum wells by ion implantation.

Using high resolution electron beam lithography for definition of implantation masks, we achieve wire structures down to 35nm width. Implantation was carried out at energies down to 25keV and doses from 3e10cm−2 to 6e13cm−2. The so created vacancies lead to a reduction of the disordering temperature threshold of about 850°C for mere thermal disordering. Annealing those structures at 800°C results in selective disordering in the unmasked regions. We have ordered wire structures within disordered barriers. Even for the smallest mask widths of 35nm, the PL emission of wires and barriers are well resolved.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 417: Symposium EE – Optoelectronic Materials-Ordering, Composition Modulation, and Self-Assembled … , 1995 , 67
Copyright
Copyright © Materials Research Society 1996

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