Polaron and exciton-phonon complexes in CuCl nanocrystals

T. Itoh, M. Nishijima, A. I. Ekimov, C. Gourdon, Al L. Efros, M. Rosen

    Research output: Contribution to journalArticlepeer-review

    80 Citations (Scopus)

    Abstract

    We report the first evidence of an excitonic polaron and exciton-phonon complexes in nanosize semiconductor crystals. These are observed in CuCl nanocrystal excitonic luminescence spectra under resonant size-selective excitation. The theory of exciton coupling with spherical phonons through the Fröhlich and deformation potentials is developed and describes both the size dependence of the polaron binding energy and the degree of the exciton-phonon hybridization near resonance, when the 1P and 1S exciton level spacing coincides with the one- or two-phonon energy.

    Original languageEnglish
    Pages (from-to)1645-1648
    Number of pages4
    JournalPhysical review letters
    Volume74
    Issue number9
    DOIs
    Publication statusPublished - 1995

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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