Intra-excitonic relaxation dynamics in ZnO

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Contributors

  • Alexej Chernikov - , University of Marburg (Author)
  • Martin Koch - , University of Marburg (Author)
  • Bernhard Laumer - , Justus Liebig University Giessen (Author)
  • Thomas A. Wassner - , Technical University of Munich (Author)
  • Martin Eickhoff - , Justus Liebig University Giessen (Author)
  • Stephan W. Koch - , University of Marburg (Author)
  • Sangam Chatterjee - , University of Marburg (Author)

Abstract

The temperature and carrier-density dependent excitonic relaxation in bulk ZnO is studied by means of time-resolved photoluminescence. A rate-equation model is used to analyze the population dynamics and the transitions between different exciton states. Intra-excitonic (n 1) to (n 2) relaxation is clearly identified at low excitation densities and lattice temperatures with a characteristic time constant of 6 ± 0.5 ps.

Details

Original languageEnglish
Article number231910
JournalApplied physics letters
Volume99
Issue number23
Publication statusPublished - 5 Dec 2011
Peer-reviewedYes
Externally publishedYes

Keywords

ASJC Scopus subject areas