- Tytuł:
- Shallow Donors and Acceptors in GaN; Bound Excitons and Pair Spectra
- Autorzy:
-
Stępniewski, R.
Wysmołek, A. - Powiązania:
- https://bibliotekanauki.pl/articles/1946873.pdf
- Data publikacji:
- 1996-10
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
71.35.-y
71.55.Eq
71.38.+i - Opis:
- Recent photoluminescence results obtained for homoepitaxial GaN layers are presented. Dominant photoluminescence structures observed for these layers can be assigned to excitons bound to neutral impurities. Different methods such as temperature dependent evolution, high magnetic field and time resolved spectroscopy have been used to study the exciton line properties. For the p-type samples sharp lines are observed, assigned to the donor-acceptor recombination for differently distant pairs. The analysis of the optical transitions related to donors and acceptors is in reasonable agreement with the effective mass approximation. Electron phonon interaction was found to strongly affect the optical properties of GaN. The dominant intrinsic defect has been identified as a donor located at a nitrogen site.
- Źródło:
-
Acta Physica Polonica A; 1996, 90, 4; 681-690
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł