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

78 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 Jan 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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