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Reevaluation of blueshifts introduced by lateral confinement in quantum-well wire structures

Gustafsson, Anders LU ; Liu, X; Maximov, Ivan LU ; Samuelson, Lars LU and Seifert, Werner LU (1993) In Applied Physics Letters 12(15). p.1709-1711
Abstract
The luminescence from etched quantum-well wire structures often exhibits an unexpectedly large blueshift of the peak energy position. Further, the shift is usually quite independent of the width of the wires. In this letter we show that this blueshift can be explained as a decreased transfer of excitons between areas of different monolayer thicknesses within the single quantum wells, caused by a change in the exciton diffusion from being two-dimensional in the quantum wells to one-dimensional in the wires. This reduced transfer will result in a blueshift of the peak energy position if the monolayer splitting is unresolved.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Physics Letters
volume
12
issue
15
pages
1709 - 1711
publisher
American Institute of Physics
external identifiers
  • scopus:21544436419
ISSN
0003-6951
language
English
LU publication?
yes
id
0659b105-afed-4cfe-b013-f2fc87313bac (old id 35815)
date added to LUP
2007-06-19 14:32:51
date last changed
2017-01-01 05:09:54
@article{0659b105-afed-4cfe-b013-f2fc87313bac,
  abstract     = {The luminescence from etched quantum-well wire structures often exhibits an unexpectedly large blueshift of the peak energy position. Further, the shift is usually quite independent of the width of the wires. In this letter we show that this blueshift can be explained as a decreased transfer of excitons between areas of different monolayer thicknesses within the single quantum wells, caused by a change in the exciton diffusion from being two-dimensional in the quantum wells to one-dimensional in the wires. This reduced transfer will result in a blueshift of the peak energy position if the monolayer splitting is unresolved.},
  author       = {Gustafsson, Anders and Liu, X and Maximov, Ivan and Samuelson, Lars and Seifert, Werner},
  issn         = {0003-6951},
  language     = {eng},
  number       = {15},
  pages        = {1709--1711},
  publisher    = {American Institute of Physics},
  series       = {Applied Physics Letters},
  title        = {Reevaluation of blueshifts introduced by lateral confinement in quantum-well wire structures},
  volume       = {12},
  year         = {1993},
}