Comparison of the luminescent properties of LuAG:Pr nanopowders, crystals and films using synchrotron radiation

• Published in: Optical materials 2017-04, Vol.66, p.271-276
• Main Authors: Gorbenko, V., Zych, E., Voznyak, T., Nizankovskiy, S., Zorenko, T., Zorenko, Yu
• Format: Article
• Language: English
• Subjects: Lu3Al5O12 garnet; Luminescence; Nanopowders; Pr3+ dopant; Single crystalline films; Single crystals
• ISSN: 0925-3467; 1873-1252
• DOI: 10.1016/j.optmat.2017.02.003

Comparison of the luminescent properties of nanopowder, single crystal and single crystalline film of Pr3+ doped Pr-doped Lu3Al5O12 garnet (LuAG:Pr) prepared by the different technological methods is performed in this work using the time-resolved emission spectroscopy under excitation by synchrotron radiation with an energy of 3.7–25 eV at 300 K and 10 K. The notable differences in the properties of the Pr3+ luminescence are observed in LuAG:Pr crystals and films caused by involving the LuAl antisite defects and oxygen vacancies in crystals and Pb2+ flux related dopant in films in the excitation processes of the Pr3+ luminescence. At the same time, we have also found that the influence of host defects on the Pr3+ luminescence is significantly smaller in the LuAG:Pr nanopowders. •Comparison of the luminescent properties of Lu3Al5O12:Pr nanopowder, crystal and film using synchrotron radiation.•The notable differences in the properties of Pr3+ luminescence in LuAG:Pr crystals and films.•Influence of host defects on Pr3+ luminescence is significantly smaller in the LuAG:Pr nanopowders.