Synchrotron radiation study of interconfigurational 5d-4f luminescence of Pr3+ in KLuP2O7

Abstract

The double phosphate KLuP2O7 doped with Pr 3+ 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 8-300 K. Both dynamics and energy transfer peculiarities revealed in the study suggested good potentials for application of KLuP2O7:Pr3+ as a fast scintillator material. © 2014 Verlag der Zeitschrift für Naturforschung, Tübingen.