Hopping Energy Relaxation of Localized Excitons in GaP(N)

T. Niebling, O. Rubel, W. Heimbrodt, W. Stolz, S. D. Baranovskii, P. J. Klar, J. F. Geisz

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Abstract

Low-temperature kinetics of the energy transfer of localized optical excitations in a nitrogen-doped GaP bulk sample with a nitrogen content of 2.1 % is studied by means of time-resolved spectroscopy. Both spectral and time dependence of the photoluminescence decay are described quantitatively in a time range from nanoseconds to microsecond by a phenomenological theory of hopping and energy relaxation of localized excitons. The density of localized states and their energy distribution are determined by comparison of experiment and theory.

Original languageAmerican English
Pages (from-to)768-771
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume5
Issue number3
DOIs
StatePublished - 2008
Event12th International Conference on Transport in Interacting Disordered Systems, TIDS 12 - Marburg, Germany
Duration: 6 Aug 200710 Aug 2007

NREL Publication Number

  • NREL/JA-520-48494

Keywords

  • energy transfer
  • localized optical excitations
  • low-temperature kinetics

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