Transient behavior of self-assembled quantum dots formed by atomic layer epitaxy technique

Young Min Park, Young Ju Park, Kwang Moo Kim, Jae Cheol Shin, Jin Dong Song, Jung Il Lee, Keon Ho Yoo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We investigated a transient behavior of InGaAs self-assembled quantum dots (SAQD) formed by atomic layer epitaxy technique (ALE). Performing some cycles of InAs/GaAs alternate source supply between InGaAs layers, InGaAs dots-in-a-well structures were spontaneously grown. In order to elucidate the growth mechanism of dots-in-a-well structure, premature SAQD was intentionally prepared by controlling the cycles of source supply. Through the measurement of photoluminescence, not only the discrete quantum well state but also broad emission band was observed, indicating that a mixed structure of QW and QD was existed in a quantum well. The mixed behaviors of the premature QDs were studied in detail using temperature dependence of photoluminescence measurements.

Original languageEnglish
Title of host publication2003 International Symposium on Compound Semiconductors, ISCS 2003
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages161-162
Number of pages2
ISBN (Electronic)0780378202
DOIs
Publication statusPublished - 2003
Event2003 International Symposium on Compound Semiconductors, ISCS 2003 - San Diego, United States
Duration: 25 Aug 200327 Aug 2003

Publication series

NameIEEE International Symposium on Compound Semiconductors, Proceedings
Volume2003-January

Conference

Conference2003 International Symposium on Compound Semiconductors, ISCS 2003
Country/TerritoryUnited States
CitySan Diego
Period25/08/0327/08/03

Bibliographical note

Publisher Copyright:
© 2003 IEEE.

Keywords

  • Assembly
  • Atomic layer deposition
  • Atomic measurements
  • Epitaxial growth
  • Gallium arsenide
  • Indium gallium arsenide
  • Photoluminescence
  • Quantum dots
  • Temperature dependence
  • US Department of Transportation

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