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Pis'ma v Zh. Èksper. Teoret. Fiz., 2012, Volume 96, Issue 5, Pages 338–342 (Mi jetpl3219)  

This article is cited in 7 scientific papers (total in 7 papers)


Anomalous luminescence of impurity-bound excitons in lithium borate crystals doped with cerium ions

I. N. Ogorodnikov, V. A. Pustovarov

Ural Federal University named after the First President of Russia B. N. Yeltsin, Ekaterinburg

Abstract: The spectra and relaxation kinetics of the anomalous ($\tau<10$ ns) luminescence of Li$_6$GdB$_3$O$_9$:Ce$^{3+}$ crystals have been experimentally detected. The time-resolved vacuum ultraviolet spectroscopy study has shown that optical transitions at $6.2$ eV, caused by the transfer of an electron from the $4f^{1}$ ground state of Ce$^{3+}$ to autoionizing states near the conduction band bottom of a crystal, lead to the formation of an impurity-bound exciton with the hole component localized on the $4f$ state of Ce$^{3+}$ and the electron localized on states of the conduction band bottom. It has been found that the decay of such an exciton in Li$_6$GdB$_3$O$_9$:Ce$^{3+}$ occurs through radiative recombination, leading to fast luminescence at $4.25$ eV. The energy threshold for the formation of the impurity-bound exciton has been determined. The distribution functions of elementary relaxations over the reaction rate constants $H(k)$, which determine the relaxation kinetics and luminescence quenching processes, have been calculated.

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English version:
Journal of Experimental and Theoretical Physics Letters, 2012, 96:5, 308–312

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Document Type: Article
Received: 10.07.2012

Citation: I. N. Ogorodnikov, V. A. Pustovarov, “Anomalous luminescence of impurity-bound excitons in lithium borate crystals doped with cerium ions”, Pis'ma v Zh. Èksper. Teoret. Fiz., 96:5 (2012), 338–342; JETP Letters, 96:5 (2012), 308–312

Citation in format AMSBIB
\by I.~N.~Ogorodnikov, V.~A.~Pustovarov
\paper Anomalous luminescence of impurity-bound excitons in lithium borate crystals doped with cerium ions
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2012
\vol 96
\issue 5
\pages 338--342
\jour JETP Letters
\yr 2012
\vol 96
\issue 5
\pages 308--312

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    This publication is cited in the following articles:
    1. Basharov A.M., “O stokhasticheskom obosnovanii opisaniya kinetiki nanochastits differentsialnymi uravneniyami s drobnymi proizvodnymi”, Nanosistemy: fizika, khimiya, matematika, 3:6 (2012), 47–63  zmath  elib
    2. Ogorodnikov I.N., Pustovarov V.A., Goloshumova A.A., Isaenko L.I., Yelisseyev A.P., Pashkov V.M., “A Luminescence Spectroscopy Study of Sri2:Nd3+ Single Crystals”, J. Lumines., 143 (2013), 101–107  crossref  isi  elib  scopus
    3. Ogorodnikov I.N., Pustovarov V.A., Omelkov S.I., Vostrov D.O., Isaenko L.I., “Optical and Luminescence Spectroscopy Studies of Electronic Structure of Li6Gdb3O9 Single Crystals”, Opt. Mater., 36:6 (2014), 1060–1064  crossref  adsnasa  isi  elib  scopus
    4. Pustovarov V.A., Ogorodnikov I.N., Omelkov S.I., Isaenko L.I., Yelisseyev A.P., Goloshumova A.A., Lobanov S.I., Krinitsyn P.G., “Electronic Excitations and Luminescence of Srmgf4 Single Crystals”, Phys. Solid State, 56:3 (2014), 456–467  crossref  adsnasa  isi  elib  scopus
    5. Ogorodnikov I.N., Pustovarov V.A., Omelkov S.I., Isaenko L.I., Yelisseyev A.P., Goloshumova A.A., Lobanov S.I., “A Far Ultraviolet Spectroscopic Study of the Reflectance, Luminescence and Electronic Properties of Srmgf4 Single Crystals”, J. Lumines., 145 (2014), 872–879  crossref  isi  elib  scopus
    6. Ogorodnikov I.N., Vostrov D.O., Pustovarov V.A., Sedunova I.N., “a Comparative Spectroscopic Study of Photoluminescence in Li6Gdb3O9:Ce Single Crystals and Crystal-Fibers”, J. Lumines., 159 (2015), 258–264  crossref  isi  elib  scopus
    7. Ogorodnikov I.N., Kiseleva M.S., Vostrov D.O., Yakovlev V.Yu., “Cathodoluminescence Kinetics of Li6Gdb3O9 Crystals”, J. Lumines., 158 (2015), 252–259  crossref  isi  elib  scopus
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