- Tytuł:
- Comparison of the luminescent properties of Y₃Al₅O₁₂:Pr crystals and films
- Autorzy:
-
Zorenko, T.
Gorbenko, V.
Nizankovskiy, S.
Zorenko, Yu. - Powiązania:
- https://bibliotekanauki.pl/articles/1052913.pdf
- Data publikacji:
- 2018-04
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
- 78.55.Hx
- Opis:
- 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.
- Źródło:
-
Acta Physica Polonica A; 2018, 133, 4; 948-953
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł