The Energy Levels Splitting Calculated for the Heavy and Light Holes in a Cd1-xZnxS Double Quantum Dot
Zoubeida Khefacha,
Nabil Safta,
Mohamed Dachraoui
Issue:
Volume 5, Issue 3, June 2017
Pages:
32-36
Received:
23 March 2017
Accepted:
19 April 2017
Published:
14 June 2017
Abstract: This work reports on a theoretical investigation of a double Cd1-xZnxS quantum dot embedded in an insulating material.The quantum dots are assumed to have a flattened cylindrical geometry with a finite barrier at the boundary.The energy levels splitting has been computed, using the tight binding approximation, in the case of the heavy and light holes, as a function of zinc composition for different inter-quantum dot separations. An analysis of the results shows that, for the light holes, the coupling is maximum when x=0.8. Moreover, it has been demonstrated the strong localization character of the heavy holes in this nanostructure.
Abstract: This work reports on a theoretical investigation of a double Cd1-xZnxS quantum dot embedded in an insulating material.The quantum dots are assumed to have a flattened cylindrical geometry with a finite barrier at the boundary.The energy levels splitting has been computed, using the tight binding approximation, in the case of the heavy and light hol...
Show More
