Autor: Świątek, L. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: SrS:Eu and CaS:Eu Thin Films: Influence of Host Lattice on Kinetics of Europium Emission
Autorzy:: Świątek, K.
Godlewski, M.
Niinistö, L.
Leskelä, M.
Powiązania:: https://bibliotekanauki.pl/articles/1923720.pdf
Data publikacji:: 1992-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.55.Gs
76.30.Kg
78.55.Et
Opis:: In this paper we report the studies of photoluminescent properties of CaS:Eu and SrS:Eu thin films containing up to 3 mole % of Eu, grown by the atomic layer epitaxy method. The energy transfer and direct intrashell excitation channels of Eu ions are examined in function of temperature.
Źródło:: Acta Physica Polonica A; 1992, 82, 5; 769-772
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Rare-Earth Excitation Mechanism in Wide Band Gap H-VI Compounds
Autorzy:: Karpińska, K.
Świątek, K.
Godlewski, M.
Niinistö, L.
Leskelä, M.
Powiązania:: https://bibliotekanauki.pl/articles/1929798.pdf
Data publikacji:: 1993-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.55.Gs
76.30.Kg
78.55.Et
Opis:: The excitation mechanism of rare-earth emission in Eu and Ce doped CaS and SrS is studied. It is proposed that the Eu and probably also Ce emission is induced by the photoionization transition of the rare-earth ion, which is followed by the carrier trapping via the excited state of the ion. At increased temperatures the efficiency of excitation is reduced. We explain this effect by the carrier emission from the excited core state of the rare-earth ion to the continuum of the conduction (valence) band states. It is also suggested that the charge transfer state of the rare-earth ion may act as the intermediate state in the carrier trapping.
Źródło:: Acta Physica Polonica A; 1993, 84, 5; 959-962
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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