- Tytuł:
- Recombination Processes in $PbWO_{4}:Tb^{3+}$ Crystals
- Autorzy:
-
Novosad, S.
Kostyk, L.
Novosad, I.
Tsvetkova, O. - Powiązania:
- https://bibliotekanauki.pl/articles/1550389.pdf
- Data publikacji:
- 2010-01
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
78.55.Hx
78.60.Kn
78.70.En - Opis:
- In the paper the results of investigations of X-ray excitation spectra, thermostimulated luminescence and the influence of light illumination on the thermoluminescence glow curves of pure and Tb-doped $PbWO_{4}$ crystals are presented. It is suggested that the $F^{-}$-centres are formed in $PbWO_{4}$ crystals at filling oxygen vacancies near $Pb^{3+}$ ions to three electrons under X-ray irradiation at 90 K. The nature of 108 K thermostimulated luminescence peak is connected with the $[(WO_{3} + F^{-})-Pb^{3+}]$ associations. It was established that thermal or optical destruction of this peak leads to appearance of the radiative transitions of excitons localized near the $[(WO_{3} + F)-Pb^{2+}]$ complex centres.
- Źródło:
-
Acta Physica Polonica A; 2010, 117, 1; 143-145
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł