Optical properties of InAlAs quantum dots in an AlGaAs matrix

A. F. Tsatsul'nikov, A. Yu Egorov, P. S. Kop'ev, A. R. Kovsh, N. N. Ledentsov, M. V. Maximov, A. A. Suvorova, V. M. Ustinov, B. V. Volovik, A. E. Zhukov, M. Grundmann, D. Bimberg, Zh I. Alferov

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Structural and optical properties of In x Al 1-x As quantum dots (QD) embedded in an Al 0.30 Ga 0.70 As matrix are studied as a function of InAs mole fraction (x). Decreasing of x results in a sequential disappearance of bound electron and hole states in the QDs. There is a range of indium compositions were photoluminescence is determined by type-II optical transitions between electrons localized in a Al 0.3 Ga 0.7 As layer and holes localized in the QDs.

Original languageEnglish
Pages (from-to)381-384
Number of pages4
JournalApplied Surface Science
Volume123-124
DOIs
Publication statusPublished - Jan 1998
Externally publishedYes

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