- Tytuł:
- Dynamics of Excitation Transfer Inside InAs/GaAs Quantum Dot System
- Autorzy:
-
Korona, K. P.
Babiński, A.
Raymond, S.
Wasilewski, Z. - Powiązania:
- https://bibliotekanauki.pl/articles/2046919.pdf
- Data publikacji:
- 2006-08
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
78.47.+p
72.20.Jv
78.67.Hc
78.55.Cr - Opis:
- We present time-resolved photoluminescence investigations of InAs/GaAs structures containing quantum dots with the ground state at 1.43 eV. State filling effect and a Pauli blocking effect were clearly observed. These effects significantly influenced dynamics of excitation transfer from upper to lower state inside a dot leading to non-exponential dynamics. Numerical model based on nonlinear rate equations was proposed. The model described well the experimental data providing values of: lifetime of the ground state 0.53±0.03 ns, lifetime of excited state (when the ground state is full) 1.1±0.2 ns, and internal relaxation time (when the ground state is empty) 0.07±0.01 ns.
- Źródło:
-
Acta Physica Polonica A; 2006, 110, 2; 219-224
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł