- Tytuł:
- Carrier Dynamics and Dynamic Band-Bending in Type-II ZnTe/ZnSe Quantum Dots
- Autorzy:
-
Syperek, M.
Misiewicz, J.
Chan, C.
Dumcenco, D.
Huang, Y.
Chou, W. - Powiązania:
- https://bibliotekanauki.pl/articles/1399095.pdf
- Data publikacji:
- 2013-11
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
78.67.Hc
78.55.Et
78.47.J- - Opis:
- Carrier dynamics and dynamic band-bending in self-assembled ZnTe/ZnSe quantum dots have been studied by means of time-resolved photoluminescence experiment at low temperatures. The experiment reveals clearly type-II character of the confinement potential in the dot manifested in: (i) long photoluminescence decay time constant of 28-35 ns, and (ii) temporal shift of the quantum dot peak emission towards low energy following the laser pulse excitation. The magnitude of the spectral shift Δ E depends on the dot size and the power density of excitation pulse. For the dots under study and given experimental conditions Δ E ≈ 28 ÷ 42 meV.
- Źródło:
-
Acta Physica Polonica A; 2013, 124, 5; 821-823
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł