The Luminescence of CdWO_4:Tb,Li Crystals under Synchrotron Excitation at 10 K

• Authors: S. Novosad , L. Kostyk , I. Novosad , A. Luchechko , G. Stryganyuk
• Languages of publication: EN

Abstracts

EN

The luminescent properties of CdWO_4:Tb,Li crystals have been investigated at 10 K in the region 4-25 eV using synchrotron excitation. It is shown that besides the intrinsic matrix luminescence the number emission lines due to electron f-f-transitions in Tb^{3+} ions are efficiently excited at near-edge region of the fundamental absorption (E_{exc} = 4.1 eV). The weak recombination luminescence of terbium impurity on the background of intensive matrix luminescence is observed under excitation in the region of fundamental absorption (E_{exc} = 5.4 and 13.8 eV). It is shown that the luminescence spectrum of the matrix is a superposition of three elementary bands 2.07, 2.47, and 2.73 eV. The nature of emission bands is discussed.

Keywords

EN

78.55.-m

Discipline

• 78.55.-m: Photoluminescence, properties and materials(for time resolved luminescence, see 78.47.jd)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 122
• Issue: 4
• Pages: 717-720

Dates

published

2012-10

received

2012-02-17

Contributors

author

S. Novosad

• Ivan Franko National University of Lviv, Universytetska 1, 79000 Lviv, Ukraine

author

L. Kostyk

• Ivan Franko National University of Lviv, Universytetska 1, 79000 Lviv, Ukraine

author

I. Novosad

• Ivan Franko National University of Lviv, Universytetska 1, 79000 Lviv, Ukraine

author

A. Luchechko

• Ivan Franko National University of Lviv, Universytetska 1, 79000 Lviv, Ukraine

author

G. Stryganyuk

• Institute for Scintillation Materials, National Academy of Sciences of Ukraine, Lenin Ave. 60, 61000 Kharkov, Ukraine

References

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Identifiers

DOI

10.12693/APhysPolA.122.717