Published April 10, 2007 | Version v1
Journal article Metadata-only

Laterally Aligned GaAs Quantum Dot Molecules Grown by Droplet Epitaxy

Creators

  • 1. Quantum Dot Research Center, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047 (Japan)
  • 2. PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, Saitama 332-0012 (Japan)
  • 3. Department of Physics, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8551 (Japan)

Description

Laterally aligned, unstrained GaAs/AlGaAs quantum dot molecules (QDMs) are created by droplet epitaxy, utilizing the anisotropic surface potentials of the GaAs (100) surface for the migration of Ga adatoms. Single QDM photoluminescence spectra show a doublet structure, for which effective mass approximation calculations (including the size of the QDM) suggest it originates from molecular orbital energy levels in the QDM

Additional details

Identifiers

DOI
10.1063/1.2729794;

Publishing Information

Journal Title
AIP Conference Proceedings
Journal Volume
893
Journal Issue
1
Journal Page Range
p. 109-110
ISSN
0094-243X
CODEN
APCPCS

Conference

Title
28. international conference on the physics of semiconductors
Acronym
ICPS 2006
Dates
24-28 Jul 2006
Place
Vienna (Austria)

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
39072040
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALUMINIUM ARSENIDES; ANISOTROPY; APPROXIMATIONS; CRYSTAL GROWTH; DROPLETS; EFFECTIVE MASS; EMISSION SPECTRA; ENERGY LEVELS; GALLIUM ARSENIDES; MOLECULAR BEAM EPITAXY; MOLECULAR ORBITAL METHOD; MOLECULES; PHOTOLUMINESCENCE; QUANTUM DOTS; SURFACE POTENTIAL; SURFACES
Descriptors DEC
ALUMINIUM COMPOUNDS; ARSENIC COMPOUNDS; ARSENIDES; CALCULATION METHODS; CRYSTAL GROWTH METHODS; EMISSION; EPITAXY; GALLIUM COMPOUNDS; LUMINESCENCE; MASS; NANOSTRUCTURES; PARTICLES; PHOTON EMISSION; PNICTIDES; POTENTIALS; SPECTRA

Optional Information

Notes
(c) 2007 American Institute of Physics