- Tytuł:
- Competition of Radiation Processes in 6H-SiC Observed by Luminescence
- Autorzy:
-
Wysmołek, A.
Mroziński, P.
Dwiliński, R.
Vlaskina, S.
Kamińska, M. - Powiązania:
- https://bibliotekanauki.pl/articles/1873137.pdf
- Data publikacji:
- 1995-02
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
78.55.-m
78.60.Kn - Opis:
- We report on the results of photoluminescence and thermoluminescence measurements of various 6H-SiC crystals. At low temperature in all n-type samples two bands with maxima at 2.7 eV (blue) and 1.8 eV (orange) were detected. In the p-type material only blue band was observed. The measurements performed at a broad range of temperatures showed totally different behaviour of photoluminescence intensity of both bands. The presented results could be explained in the model assuming well established donor-acceptor pair recombination for the blue band emission and the conduction band - deep defect transition for the orange band. The proposed model was confirmed by thermoluminescence measurements of the orange band which showed peaks at 30 K, 80 K, 100 K, 150 K attributed to ionization of subsequent shallow donor levels.
- Źródło:
-
Acta Physica Polonica A; 1995, 87, 2; 437-440
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki