REFLECTION AND EMISSION PROPERTIES OF LEAD-BASED PEROVSKITE-LIKE CRYSTALS

Authors
MYAGKOTA SV VOLOSHINOVSKII AS STEFANSKII IV MIKHAILIK MS PASHUK IP
Citation
Sv. Myagkota et al., REFLECTION AND EMISSION PROPERTIES OF LEAD-BASED PEROVSKITE-LIKE CRYSTALS, Radiation measurements, 29(3-4), 1998, pp. 273-277
Citations number
12
Categorie Soggetti
Nuclear Sciences & Tecnology
Journal title
Radiation measurements → ACNP
ISSN journal
13504487
Volume
29
Issue
3-4
Year of publication
1998
Pages
273 - 277
Database
ISI
SICI code
1350-4487(1998)29:3-4<273:RAEPOL>2.0.ZU;2-Y
Abstract
The reflection spectra of the RbPbCl3, RbPb2Cl5 and KPb2Cl5 crystals i n the fundamental absorption region (E = 2-12 eV) at T = 300 K and the thermal evolution of the luminescence spectra in the temperature rang e 4.2-300 K were investigated. The structure of exciton reflection in RbPb2Cl5 and KPb2Cl5 crystals corresponds to four non-equivalent posit ions of Pb2+-ions in the unit cell. Radiative relaxation of intrinsic excitations in the crystal under study is considered to occur through the emission of self-trapped excitons (STE). (C) 1998 Elsevier Science Ltd. All rights reserved.