Thermostimulated luminescence of Li2B4O7:Eu3+ crystals

V.N.Baumer, L.A.Grin', E.F.Dolzhenkova, M.F.Dubovik, A.V.Tolmachev


Institute for Single Crystals, National Academy of Sciences of Ukraine, 60 Lenin Ave., 310001 Kharkiv, Ukraine

Received August 26, 1998

Thermostimulated luminescence of pure and doped lithium tetraborate (LTB) single crystals in the temperature range 290-600 K has been studied. The trap activation energies have been calculated. Europium has been found to favour a further increase of the light sum storage of LTB crystals. The traps with E = 0.95 eV and E = 1.1 eV are supposed to be electrical capture centers. Qualitative considerations on the nature of observed recombination processes have been stated.

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