|
Z. Naturforsch. 2014,
69b, 205 – 209
doi:10.5560/ZNB.2014-3260
Synchrotron Radiation Study of Interconfigurational 5d-4f Luminescence of Pr3+ in KLuP2O7
1 Laboratory of Luminescent Materials, Department of Biotechnology, University of Verona, and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy
2 Institute of Physics and Technology, Ural Federal University, Ekaterinburg 62002, Russia
Reprint requests to Prof. M. Bettinelli. E-mail:
marco.bettinelli@univr.it
Received August 22, 2013 / published online February 17, 2014
The double phosphate KLuP2O7 doped with Pr3+ ions was prepared by solid-state reaction. The material obtained was characterized by powder X-ray diffraction. The luminescence spectroscopy and the excited state dynamics of this material were studied upon excitation with VUV synchrotron radiation. The 5d-4f emission of Pr3+ upon both direct and band gap excitation was detected and assigned. The decay kinetics of the Pr3+ 5d-4f emission is characterized by a decay time of about 20 ns and is nearly temperature independent within the range 8–300K. Both dynamics and energy transfer peculiarities revealed in the study suggested good potentials for application of KLuP2O7:Pr3+ as a fast scintillator material.
Key words: Pr3+, 5d-4f Luminescence, KLuP2O7, VUV Spectroscopy, Synchrotron Radiation, Scintillator