Published January 4, 2010 | Version v1
Journal article

MBE Growth of GaAs Whiskers on Si Nanowires

  • 1. Photonics Institute, Vienna University of Technology, Gusshausstrasse 29/387, 1040 Wien (Austria)
  • 2. Institute for Solid-State Electronics, Vienna University of Technology, Floragasse 7/362, 1040 Wien (Austria)
  • 3. Center for Micro- and Nanostructures, Vienna University of Technology, Floragasse 7/392, 1040 Wien (Austria)
  • 4. Dept. of Physics and Dept. of Electrical Engineering, SUNY at Buffalo, 332 Bonner Hall, New York 14260 (United States)

Description

We present the growth of GaAs nanowhiskers by molecular beam epitaxy on Si (111) nanowires grown by low-pressure chemical vapor deposition. The whiskers grow in the wurtzite phase, along the [0001] direction, on the {112} facets of the Si nanowire, forming a star-like six-fold radial symmetry. The photoluminescence shows a 30 meV blue shift with respect to bulk GaAs, additionally a GaAs/AlAs core-shell heterostructure shows increased luminescence.

Additional details

Identifiers

Publishing Information

Journal Title
AIP Conference Proceedings
Journal Volume
1199
Journal Issue
1
Journal Page Range
p. 261-262
ISSN
0094-243X
CODEN
APCPCS

Conference

Title
29. international conference on the physics of semiconductors
Dates
27 Jul - 1 Aug 2008
Place
Rio de Janeiro (Brazil)

Optional Information

Notes
(c) 2009 American Institute of Physics