Ukrainian Journal of Physical Optics

Number 2, Volume 4, 2003

Luminescent-kinetic parameters of CsPbCl3 nanocrystals dispersed in wide-band perovskite-like matrices
Myagkota S.

Lviv S. Z. Gzhytsky State Academy of Veterinary Medicine, 50 Pekarska- Str., 79010 Lviv, Ukraine

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CsPbCl3 nanocrystals are obtained in perovskite-like CsBCl3 (B=Sr, Ca, Mg) matrices doped with Pb ions (CPb=0.05 and 1 mol.%). The luminescent-kinetic parameters of the CsPbCl3 nanocrystals dispersed in CsBCl3 (B=Sr, Ca, Mg) matrices are studied under the pulsed UV and X-ray excitation. The conclusion about the formation of CsPbCl3 nanocrystals is confirmed with the data of their luminescence decay kinetics and a short-wavelength shift of the exciton luminescence maximum, when compared to that of an excitonic luminescence in a bulk single CsPbCl3 crystal. Under the pulsed X-ray excitation, re-absorption of core-valence luminescence of CsBCl3 (B=Sr, Ca, Mg) matrices with the CsPbCl3 nanocrystals is registered.

Key words: nanocrystal, quantum size effect, luminescent-kinetic parameters, core-valence luminescence.
PACS: 82.70.Dd

doi 10.3116/16091833/4/2/78/2003

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