Title :
Time-resolved spectroscopy of Bi3+ Centers in Y4Al2O9 ceramics
Author :
Krasnikov, A. ; Lipinska, L. ; Shalapska, T. ; Suchocki, A. ; Zazubovich, S. ; Zhydachevskii, Ya.
Author_Institution :
Inst. of Phys., Univ. of Tartu, Tartu, Estonia
Abstract :
Time-resolved emission and excitation spectra as well as luminescence decay kinetics are studied at 4.2-400 K under excitation in the 3-6 eV energy range for Bi3+ ions substituting for Y3+ ions in four nonequivalent crystal lattice sites of Y4Al2O9:Bi ceramics. The dependences of the luminescence characteristics and the relaxed excited state structure of Bi3+centers on their nearest surroundings are discussed.
Keywords :
bismuth; ceramics; crystal structure; photoluminescence; time resolved spectra; yttrium compounds; Bi3+ centers; Y4Al2O9:Bi; ceramics; electron volt energy 3 eV to 6 eV; ion substitution; luminescence decay kinetics; nonequivalent crystal lattice sites; relaxed excited state structure; temperature 4.2 K to 400 K; time-resolved emission spectra; time-resolved excitation spectra; Ions; Bi3+; Y4Al2O9 ceramics; decay kinetics; time-resolved luminescence;
Conference_Titel :
Oxide Materials for Electronic Engineering (OMEE), 2014 IEEE International Conference on
Conference_Location :
Lviv
Print_ISBN :
978-1-4799-5960-0
DOI :
10.1109/OMEE.2014.6912377
