Fast 5d-4f luminescence in Pr3+-doped K3Lu (PO4)2

• DOI: 10.1016/j.jlumin.2013.11.068
• Publication Date: 2013-11-27T00:15:51Z
• Authors: M. Trevisani; K.V. Ivanovskikh; F. Piccinelli; M. Bettinelli
• Keywords: 02 engineering and technology; 5d-4f luminescence; Synchrotron radiation; VUV spectroscopy; info:eu-repo/classification/ddc/530; 0210 nano-technology; 7. Clean energy

Abstract The double phosphate K 3 Lu (PO 4 ) 2 doped with Pr 3+ ions was prepared by solid-state reaction. The material obtained was characterized by X-ray powder diffraction (XRPD). The luminescence spectroscopy and the excited state dynamics of this material were studied for the first time upon excitation with UV-VUV synchrotron radiation (SR). The material has shown efficient and fast Pr 3+ 5d-4f emission upon both intra-center and band-gap excitation. A strong dependence of the luminescence spectra as well as the decay kinetics on the temperature was observed due to crystallographic structural phase changes of the K 3 Lu (PO 4 ) 2 host.