Temat: 78.40.-q - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Luminescence and Transient Absorption of CdWO$\text{}_{4}$ Crystals
Autorzy:: Millers, D.
Grigorjeva, L.
Chernov, S.
Powiązania:: https://bibliotekanauki.pl/articles/2010943.pdf
Data publikacji:: 1999-06
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.60.Ya
78.40.-q
Opis:: Luminescence and transient absorption of the oxygen-deficient CdWO$\text{}_{4}$ crystal were studied. The electron transitions from the excited state of the luminescence center to some higher energy state are responsible for the transient absorption observed. The scheme of luminescence center levels is proposed from the obtained experimental results.
Źródło:: Acta Physica Polonica A; 1999, 95, 6; 965-969
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: The Model for Luminescence Center Excitation in PbWO_{4}
Autorzy:: Millers, D.
Grigorjeva, L.
Chernov, S.
Pankratov, V.
Powiązania:: https://bibliotekanauki.pl/articles/2010944.pdf
Data publikacji:: 1999-06
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.40.-q
78.60.Ya
61.72.Cc
Opis:: The luminescence and transient absorption of PbWO$\text{}_{4}$ crystals were studied. The electron beam (10 ns, E≈270 keV) was used as excitation source. The kinetics of luminescence is complicated - the prompt rise of luminescence intensity is followed by a slow (τ$\text{}_{r}$≈100 ns) rise. The luminescence decay at 80 K is nearly exponential with τ$\text{}_{d}$≈4.0- 4.5 μs. The decay kinetics of transient absorption at 3.5 eV can be described roughly by two exponents with time constants τ$\text{}_{1}$≈100 ns and τ$\text{}_{2}$≈4.0 μs. A common process responsible for absorption relaxation and luminescence rise is suggested. The luminescence center excitation occurs during recombination process via Pb$\text{}^{2+}$ excited state formation and subsequent energy transfer to WO$\text{}_{4}^{2-}$ group.
Źródło:: Acta Physica Polonica A; 1999, 95, 6; 971-976
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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