We investigated the optical properties of excitons in quasi-one-dimensional semiconductor quantum structures by photoluminescence and photoluminescence excitation: High-quality GaAs/AlxGa1-xAs heterostructures were grown using low-pressure organometallic chemical vapour deposition (OMCVD) on non-planar substrates. The experimentally observed subband separations are in good agreement with a theoretical calculation of the quantum-confined eigenstates, which includes the mapping of the crescent-shaped wire obtained on TEM micrographs. Additionally, a temperature dependence study of excitonic spectra reveals the dominant role of potential and size fluctuations in localizing the excitons.

Type
research article
DOI
10.1007/BF02457257
Web of Science ID

WOS:A1995UB29400066

Author(s)
Oberli, D. Y.  
Vouilloz, F.
Dupertuis, M.-A.  
Fall, C. J.
Kapon, E.  
Date Issued

1995

Published in
Nuovo Cimento Della Societa Italiana Di Fisica D-Condensed Matter Atomic Molecular and Chemical Physics Fluids Plasmas Biophysics
Volume

17

Issue

11-12

Start page

1641

End page

1650

Subjects

HETEROSTRUCTURES

•

EMISSION

Note

Oberli, DY, ECOLE POLYTECH FED LAUSANNE,DEPT PHYS,CH-1015 LAUSANNE,SWITZERLAND.

ISI Document Delivery No.: UB294

Cited Reference Count: 10

Cited References:

BASTARD G, 1991, SOLID STATE PHYS, V44, P229

BOCKELMANN U, 1991, EUROPHYS LETT, V16, P601

BOCKELMANN U, 1992, PHYS REV B, V45, P1888

CINGOLANI R, 1993, RIV NUOVO CIMENTO, V16, P1

CITRIN DS, 1991, PHYS REV B, V43, P11703

GRUNDMANN M, 1955, INT J NONLINEAR OPT, V4, P99

GUSTAFSSON A, UNPUB

KAPON E, 1989, PHYS REV LETT, V63, P430

RINALDI R, 1994, PHYS REV LETT, V73, P2899

SERCEL PC, 1991, PHYS REV B, V44, P5681

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

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LOEQ  
LPN  
Available on Infoscience
August 31, 2007
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/11130