研究目的

Investigating the size-dependent energy gaps, electron and heavy hole effective masses, phonon frequencies and polaron related parameters in InSb spherical quantum dots.

研究成果

The pseudopotential approach has been used to investigate the electronic, lattice vibration and polaron properties in InSb spherical quantum dots. Features such as direct and indirect energy gaps, electron and heavy hole effective masses, phonon frequencies, Fr?hlich coupling constant and Debye temperature have been computed and their dependence on the spherical quantum dots radius has been examined and discussed. All properties change significantly for quantum dot radius ranging from 1 to 6 nm, attributed to the quantum confinement effect. Beyond 6 nm, the change becomes weak and tends towards retrieving the bulk properties.

研究不足

The study is limited to spherical quantum dots of InSb with radii ranging from 1 to 10 nm. The pseudopotential approach, while effective, may not capture all nuances of quantum confinement effects compared to more computationally intensive ab initio methods.