研究目的
Investigating the influence of electric field on direct and indirect exciton in a concentrically coupled quantum ring heterostructure embedded in SiO2 matrix.
研究成果
The study concludes that the application of electric field significantly affects the localization and stability of excitons in CDQR heterostructures. The electric field induces a triangular confinement to the carriers by tilting the conduction and valence bands. The diamagnetic susceptibility, which indicates electron-hole separation, is influenced by the ring dimensions and the applied electric field. The findings suggest potential applications in optoelectronic devices, but further experimental validation is required.
研究不足
The study is theoretical and relies on variational techniques and effective mass approximation, which may not capture all quantum mechanical effects accurately. Experimental validation is necessary to confirm the findings.