2012/10/27 by Е. А. Раджабов, E. Radzhabov, Radzhabov, E. +2
Chemistry · Materials Science · Physics and Astronomy · #Inorganic Fluorides and Related Compounds #Luminescence Properties of Advanced Materials #Radiation Detection and Scintillator Technologies #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.1210.7275
4 pages, 8 figures
arxiv created 2012/11/01 · arxiv updated 2012/11/02
The emission spectra of Ce3+ or Pr3+ doped CaF2, SrF2, BaF2 excited by vacuum ultraviolet photons or by x-ray as well as excitation and absorption spectra in vacuum ultraviolet region (6-13 eV) were studied. The transfer of exciton energy is the main channel for Ce3+ excitation in alkaline-earth fluorides. Three different stages of energy transfer were observed. Pr3+ excited by two processes, slow f-f luminescence excited by excitons, fast d-f luminescence excited by some fast process.