✦ LIBER ✦

Luminescence of CsPbCl3 Nanocrystals Dispersed in a CsCl Crystal under High-Energy Excitation

✍ Scribed by A. Voloshinovskii; S. Myagkota; A. Gloskovskii; S. Zazubovich

Publisher: John Wiley and Sons
Year: 2001
Tongue: English
Weight: 117 KB
Volume: 225
Category: Article
ISSN: 0370-1972
DOI: 10.1002/(sici)1521-3951(200105)225:1<257::aid-pssb257>3.0.co;2-h

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✦ Synopsis

The luminescence spectral and kinetic characteristics of CsPbCl 3 nanocrystals, thermally created in a CsCl:Pb single crystal and dispersed in a CsCl matrix, have been studied under excitation by synchrotron radiation in the VUV spectral region (4 to 20 eV). Various components found in the decay kinetics of the 2.98 eV emission have been connected with the direct excitation of the CsPbCl 3 luminescence and with the reabsorption of luminescence of other emitting centers by the CsPbCl 3 nanocrystals. A high-energy shift of the free exciton emission band maximum of the CsPbCl 3 nanocrystals with respect to that observed for a CsPbCl 3 single crystal as well as the shortening of the luminescence decay time are considered from the point of view of quantum size effects.

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