Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/50953
Title: Photo- and radioluminescence of lithium hafnate Li 2HfO 3
Authors: Baklanova, Ya. V.
Ishchenko, A. V.
Denisova, T. A.
Maksimova, L. G.
Shulgin, B. V.
Pustovarov, V. A.
Viktorov, L. V.
Пустоваров, В. А.
Issue Date: 2012
Citation: Photo- and radioluminescence of lithium hafnate Li 2HfO 3 / Ya. V. Baklanova, A. V. Ishchenko, T. A. Denisova, L. G. Maksimova, B. V. Shulgin, V. A. Pustovarov, L. V. Viktorov // Optical Materials. — 2012. — Vol. 34. — № 7. — P. 1037-1041.
Abstract: Photoluminescence, excitation and pulse cathode luminescence spectra, and decay kinetics of lithium hafnate Li 2HfO 3 were investigated at temperatures 300 and 7.5 K. Time-resolved luminescence spectra were excited with synchrotron radiation in UV-VUV range. Strong emission with the peak position at 4.42 eV and with the decay time in μs range was revealed at T = 7.5 K. The emission was attributed to radiative decay of self-trapped excitons (STE). The features observed in the excitation spectra at 6.6 eV were likely to take place because of the exciton formation, with inter-band transitions dominating at 6.7 eV. Crystal structure defects underpin the luminescence spectra formation at room temperature in the frame of vacancy model. © 2012 Elsevier B.V. All rights reserved.
Keywords: LITHIUM HAFNATE
LOW-TEMPERATURE LUMINESCENCE VUV SPECTROSCOPY
RADIOLUMINESCENCE
SCINTILLATOR
SELF-TRAPPED EXCITONS
TIME-RESOLVED SPECTROSCOPY
URI: http://hdl.handle.net/10995/50953
metadata.dc.rights: info:eu-repo/semantics/restrictedAccess
SCOPUS ID: 84858281292
WOS ID: WOS:000303071500008
PURE ID: 1083958
ISSN: 0925-3467
DOI: 10.1016/j.optmat.2011.12.024
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS

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