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

In English

Författare

Summary, in English

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.

Publiceringsår

1993

Språk

Engelska

Sidor

1709-1711

Publikation/Tidskrift/Serie

Applied Physics Letters

Volym

12

Issue

15

Dokumenttyp

Artikel i tidskrift

Förlag

American Institute of Physics (AIP)

Ämne

  • Condensed Matter Physics

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0003-6951