Quenching of Pr3+ emission in single crystals of K5Pr La1−Li2F10

Sokólska, I.; Gołąb, Stanisław; Baluka, M.; Ryba‐Romanowski, W.

doi:10.1016/s0022-2313(00)00205-2

Cited by 33 publications

(22 citation statements)

References 20 publications

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“…Observed temperature dependence of the 3 P 0 lifetime is similar to that reported for other praseodymium-doped fluoride crystals [14][15][16]. Unlike the 3 P 0 luminescence, the 1 D 2 emission depends significantly on the sample temperature.…”

Section: Relaxation Dynamics Of the 3 P 0 And 1 Dsupporting

confidence: 84%

Luminescence and energy transfer in K3GdF6:Pr3+

Gusowski

Dominiak‐Dzik

Solarz

et al. 2007

Journal of Alloys and Compounds

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Single phase, polycrystalline K 3 GdF 6 compound containing 1 at.% of Pr 3+ was prepared and its luminescent properties were investigated in the 10-300 K temperature region. The temperature weakly influences the 3 P 0 emission, whereas the 1 D 2 emission decreases from 520 s at 10 K to 219 s at 290 K due to temperature dependent self-quenching effect. Excitation spectra provide evidence that the energy is transferred from the 5d levels of Pr 3+ to the energy levels belonging to the 4f 7 configuration of Gd 3+ .

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Section: Relaxation Dynamics Of the 3 P 0 And 1 Dsupporting

confidence: 84%

Luminescence and energy transfer in K3GdF6:Pr3+

Gusowski

Dominiak‐Dzik

Solarz

et al. 2007

Journal of Alloys and Compounds

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“…The compounds have been found to show exceedingly low luminescence quenching depending on the concentration of active ions. [1][2][3][4][5][6] Efficient luminescence is observed even for fully concentrated material. Such a crystal is called "stoichiometric luminescence material" or self-activated compound.…”

Section: Introductionmentioning

confidence: 99%

Optical Transitions and Enhanced Angular Overlap Model for the Low Symmetry Europium(III) System

Solarz

Gajek

2010

J. Phys. Chem. C

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Absorption, emission, and excitation spectra covering a wide energy range of 3000-58000 cm -1 for the Eu 3+ ion in the low symmetry system K 5 Li 2 EuF 10 have been reported. The emission spectra have been analyzed by taking into account the influence of the temperature onto the luminescence from the 5 D 0,1,2 multiplets. The observed energy intervals in transition bands characteristic for the europium ion have been assigned and modeled using a multistep approach developed for this system. A risk of producing numerical artifacts in the multidimensional parameter space has been minimized by its strong reduction based on the enhanced angular overlap model and standardization of the low symmetry crystal field. The reported results are satisfactory (the final rms error of the fitting below 9.2 cm -1 ), consistent in each step of the procedure and in line with the microscopic physicochemical picture of the crystal field effective interaction.

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“…The cross-relaxation process involved in the phenomenon of self-quenching proceeds probably via intermediate 1 G 4 and 3 F 3 , 3 F 4 levels. When the requirement of resonance is fulfilled it appears to be independent of temperature, as observed in K 3 Li 2 LaF 10 :Pr 3+ [14]. Temperature dependent process is predicted when the condition of resonance is fulfilled for transitions originating in thermally populated crystal field components of the ground state of acceptor ions.…”

Section: Relaxation Dynamics Of the 3 P 0 And 1 Dmentioning

confidence: 85%