Nonequilibrium theory of photoluminescence excitation spectroscopy in semiconductors

K. Hannewald, S. Glutsch, F. Bechstedt

Research output: Contribution to journalArticleAcademicpeer-review

5 Citations (Scopus)

Abstract

We present a microscopic theory of photoluminescence excitation spectroscopy (PLE) in semiconductors that is not restricted to thermalized carrier distributions. The phenomenological assumption of equivalence between PLE and absorption spectra is confirmed only for thermal equilibrium. For nonequilibrium, i.e, small time intervals between laser-pulse excitation and luminescence detection, our quantum-kinetic simulations reveal significant differences between PLE and absorption signals which can be attributed to incomplete relaxation and bottleneck effects, and should be observable in experiment.
Original languageEnglish
Pages (from-to)517-520
JournalPhysica Status Solidi B
Volume238
Issue number3
DOIs
Publication statusPublished - 2003

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