Comparison of the Luminescent Properties of Y₃Al₅O₁₂:Pr Crystals and Films

• Authors: T. Zorenko , V. Gorbenko , S. Nizankovskiy , Yu. Zorenko
• Languages of publication: EN

Abstracts

EN

The work is dedicated to comparative investigation of the luminescent properties of Y₃Al₅O₁₂:Pr (YAG:Pr) single crystals and single crystalline films using excitation by synchrotron radiation with an energy of 3.7-25 eV in the exciton range of YAG host. We have found that the differences in the excitation spectra and luminescence decay kinetics of YAG:Pr crystals and films are caused by involving the Y_{Al} antisite defects and oxygen vacancies in the crystals and Pb²⁺ flux related dopants in the films in the excitation processes of the Pr³⁺ luminescence. Taking into account these differences, we have determined in more detail the energy structure of the Pr³⁺ ions in YAG host and estimated the differences in the energies of creation of the excitons bound with the isolated Pr³⁺ ions in YAG:Pr films and the dipole Pr-Y_{Al} antisite defect centers in the crystal counterpart.

Keywords

EN

78.55.Hx

Discipline

• 78.55.Hx: Other solid inorganic materials

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2018
• Volume: 133
• Issue: 4
• Pages: 948-953

Dates

published

2018-04

Contributors

author

T. Zorenko

• Institute of Physics, Kazimierz Wielki University in Bydgoszcz, 85-090 Bydgoszcz, Poland
• Electronics Department, Ivan Franko National University of Lviv, 79017 Lviv, Ukraine

author

V. Gorbenko

• Institute of Physics, Kazimierz Wielki University in Bydgoszcz, 85-090 Bydgoszcz, Poland
• Electronics Department, Ivan Franko National University of Lviv, 79017 Lviv, Ukraine

author

S. Nizankovskiy

• Institute for Single Crystals, National Academy of Sciences of Ukraine, 61001 Kharkiv, Ukraine

author

Yu. Zorenko

• Institute of Physics, Kazimierz Wielki University in Bydgoszcz, 85-090 Bydgoszcz, Poland
• Electronics Department, Ivan Franko National University of Lviv, 79017 Lviv, Ukraine

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Identifiers

DOI

10.12693/APhysPolA.131.948