Ukrainian Journal of Physical Optics 

Number  3, Volume 3,  2002

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Spectral-Kinetic Study of LaCl3:Ce Crystals 
1Voloshinovskii A.S., 1Antonyak O.T., 1Stryganyuk G.B., 2Dorenbos P., 2van Eijk C.W.E., 3Rodnyi P.A.

1Ivan Franko National University of Lviv, 8 Kyryla i Mefodiya Str., 79005, Lviv, Ukraine
2Interfaculty Reactor Institute, Delft University of Technology,  Mekelweg 15, 2629 JB Delft, The Netherlands
3St.Petersburg State Technical University, 29 Polyteknicheskaya Str., 195251 St.Petersburg, Russia

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Luminescent spectral-kinetic parameters of LaCl3:Ce crystals with different activator concentration are studied under both optical and pulse X-ray excitation. The mechanism of Ce3+ centre luminescence at high-energy excitation is discussed. Possible schemes for the Ce3+ ion excitation process are suggested.

Keywords: luminescence, decay kinetics, hot carriers, Vk-center, self-trapped exciton (STE)

PACS: 71.35.-y, 71.55.-i, 78.55.Fv

doi 10.3116/16091833/3/3/194/2002
References:
1. Guillot-Noël OJ, de Haas JTM, Dorenbos P, van Eijk CWE, Krämer K and Güdel HU, 1999. J. Lumin. 85: 21-34.
        doi:10.1016/S0022-2313(99)00063-0  http://dx.doi.org/10.1016/S0022-2313(99)00063-0
2. Andriessen J, Antonyak OT, Dorenbos P, Rodnyi PA, Stryganyuk GB, van Eijk CWE and Voloshinovskii AS, 2000. Opt. Commun.178: 355-363.
        doi:10.1016/S0030-4018(00)00665-9  http://dx.doi.org/10.1016/S0030-4018(00)00665-9
3. Mihokova E, Nagirnyi V, Nikl M, Stolovich A, Pazzi G, Zazubovich S and Zepelin V, 1996. J. Phys.: Condens. Matter 8: 4301-4314.
        doi:10.1088/0953-8984/8/23/020  http://dx.doi.org/10.1088/0953-8984/8/23/020

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