The relaxation of hot excitons by longitudinal optical-phonons in Cd x Zn 1 - x Te/ZnTe asymmetric coupled double quantum wells

T. W. Kim, S. H. Lee, H. L. Park

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Abstract

Photoluminescence (PL) and photoluminescence excitation (PLE) measurements on Cd x Zn 1 - x Te/ZnTe asymmetric coupled double quantum wells were performed to investigate the hot-exciton luminescence phenomena. The PLE spectra indicated the creation of hot excitons and subsequent relaxation by longitudinal optical-phonon emission resulting from the localization of excitons due to fluctuation of the Cd x Zn 1 - x Te alloy well.

Original languageEnglish
Pages (from-to)46-50
Number of pages5
JournalApplied Surface Science
Volume125
Issue number1
DOIs
Publication statusPublished - 1998 Jan

Bibliographical note

Funding Information:
This work was supported by the Korea Science and Engineering Foundation through the Semiconductor Physics ResearchC enter at Jeonbuk National University in 1997.

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • Condensed Matter Physics
  • General Physics and Astronomy
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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