Author:
Kiselev S.A.,Pustovarov V.A.,Petrova M.O.,Tavrunov D.A.
Abstract
This paper reports the spectroscopic properties of praseodymium-doped phosphate, KLuP2O7doped with Pr3+ ions. Spectra of photoluminescence (PL) upon selective UV photon excitation and PL excitation spectra were measured. Recordings of luminescence spectra were done with pure samples and after irradiating with fast electrons (E = 10 MeV) using the UELR-10-10C2 linear electron accelerator in Ural Federal University and fast neutrons (E > 1 MeV) using IBR-2 reactor in Joint Institute for Nuclear Research. Pure samples demonstrate three typical channels of emission: interconfigurational d–f transitions, intraconfigurational f–f transitions and defect-related luminescence. After irradiating, significant changes of emission characteristics were observed: redistribution of interconfigurational transitions intensity and growth of defect-related luminescence bands. Several peaks are associated with phosphorus formations in crystal lattice.