Effect of external fields on charged excitons and trions in quantum dots

We study the electronic structures and optical properties of charged excitons and trions in quantum dots and consider the effects of external electric field and magnetic field on the charged excitons and trions.

In the completely confined configuration like the quantum dots, the interaction between the excitons and the electron or the hole is strong due to the confinement. We obtained energies as well as the wave functions for the electronic states of the charged excitons. Using these results, we were able to find the energy splitting and the resulted states under the application of an external field.



In order to understand more about the differences between these quasiparticles, in this work the field effects and splitting of energy levels have been calculated for charged excitons and trion structure inside a direct band gap semiconducting quantum dot.