Excitonic Photoluminescence in Semiconductor Quantum Wells: Plasma versus Excitons

S. Chatterjee, C. Ell, S. Mosor, G. Khitrova, H. M. Gibbs, W. Hoyer, M. Kira, S. W. Koch, J. P. Prineas, H. Stolz

Research output: Contribution to journalArticle

95 Scopus citations

Abstract

Time-resolved photoluminescence spectra after nonresonant excitation show a distinct [Formula presented] resonance, independent of the existence of bound excitons. A microscopic analysis identifies exciton and electron-hole plasma contributions. For low temperatures and low densities, the excitonic emission is extremely sensitive to details of the electron-hole-pair population making it possible to identify even minute fractions of optically active excitons.

Original languageEnglish (US)
JournalPhysical review letters
Volume92
Issue number6
DOIs
StatePublished - Jan 1 2004

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Chatterjee, S., Ell, C., Mosor, S., Khitrova, G., Gibbs, H. M., Hoyer, W., Kira, M., Koch, S. W., Prineas, J. P., & Stolz, H. (2004). Excitonic Photoluminescence in Semiconductor Quantum Wells: Plasma versus Excitons. Physical review letters, 92(6). https://doi.org/10.1103/PhysRevLett.92.067402