Author/Authors :
Sahli، نويسنده , , A. and Melliti، نويسنده , , A. and Sellami، نويسنده , , N. and Maaref، نويسنده , , M.A. and Testelin، نويسنده , , C. and Lemaitre، نويسنده , , A. and Voisin، نويسنده , , P.، نويسنده ,
Abstract :
We have studied the variation of photoluminescence circular polarization as a function of temperature in self-organized InAlAs/AlGaAs quantum dots. We have found that the circular polarization depends on temperature. The relaxation time τs is deduced from the circular polarization degree. It decreases from 2 ns at 40 K to 100 ps at 85 K.
Keywords :
A. Nanostructure , III–V semiconductors , Quantum dots , Photoluminescence
