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Kinetics of dark excitons and excitonic trions in InGaAs single quantum well

Research output: Contribution to journalJournal article

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  • V B Timofeev
  • A V Larionov
  • J Zeman
  • G Martinez
  • V I Falko
  • M Bayer
  • A Forchel
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<mark>Journal publication date</mark>07/1998
<mark>Journal</mark>European Physical Journal B
Issue number1
Volume4
Number of pages5
Pages (from-to)39-43
<mark>State</mark>Published
<mark>Original language</mark>English

Abstract

Magnetooptical studies performed on a wide InGaAs/GaAs single quantum well indicate that optically non-active (dark) excitons with total angular momentum M = +/- 2 play the role of a reservoir for the creation of free multiparticle excitonic complexes. After analyzing the magnetic field evolution of the circularly polarized components of the low energy structure appearing in the main excitonic luminescence line we assign this feature to the excitonic trion formation. The binding energy of the excitonic trions was estimated to be of the order of 1 meV.