Excitonic Photoluminescence in Semiconductor Quantum Wells: Plasma versus Excitons

Preprint

6 September 2003

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0309160

Abstract

Time-resolved photoluminescence spectra after nonresonant excitation show a distinct 1s resonance, independent of the existence of bound excitons. A microscopic analysis identifies excitonic and electron-hole plasma contributions. For low temperatures and low densities the excitonic emission is extremely sensitive to even minute optically active exciton populations making it possible to extract a phase diagram for incoherent excitonic populations.

Keywords

EXCITONIC PHOTOLUMINESCENCE
RESOLVED PHOTOLUMINESCENCE
PHOTOLUMINESCENCE SPECTRA
SEMICONDUCTOR QUANTUM
EXCITONIC POPULATIONS
TEMPERATURES AND LOW
OPTICALLY ACTIVE
QUANTUM WELLS

All Related Versions

Version 1, 2003-09-06, ArXiv
Published version: Physical Review Letters, 92 (6), 067402.

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