- Tytuł:
- Time-Resolved Studies of Gallium Nitride Doped with Gadolinium
- Autorzy:
-
Witek, B.
Wysmołek, A.
Kamińska, M.
Twardowski, A.
Potemski, M.
Boćkowski, M.
Grzegory, I. - Powiązania:
- https://bibliotekanauki.pl/articles/1812021.pdf
- Data publikacji:
- 2008-11
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
78.55.Cr
75.50.Pp
71.55.-i
71.35.Ji - Opis:
- Time-resolved photoluminescence experiments on high quality bulk GaN doped with Gd are presented. It was found that the decay time of Gd-related transitions observed for 4.2 K around 1.78 eV is of about 3 ms. Such a long decay time strongly supports the identification of this emission band as due to transitions between Gd³+(4f⁷) levels. The decay time measured for Gd-related transitions observed in the UV spectral range, close to the GaN band-gap, was found to be much faster than 1 μs. This suggests that these emission lines could hardly be correlated with internal transitions within Gd³+(4f⁷). Possible origin of the Gd-related UV luminescence is discussed.
- Źródło:
-
Acta Physica Polonica A; 2008, 114, 5; 1425-1430
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki