Optical spectroscopy of semiconductor quantum wires

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.


Published in:
Nuovo Cimento Della Societa Italiana Di Fisica D-Condensed Matter Atomic Molecular and Chemical Physics Fluids Plasmas Biophysics, 17, 11-12, 1641-1650
Year:
1995
ISSN:
0392-6737
Keywords:
Note:
Oberli, DY, ECOLE POLYTECH FED LAUSANNE,DEPT PHYS,CH-1015 LAUSANNE,SWITZERLAND.
ISI Document Delivery No.: UB294
Times Cited: 10
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
Laboratories:




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