Abstract

We have investigated theoretically the optical properties of composite organic-inorganic semiconductor quantum wells under the influence of both crossed electric and magnetic fields. These properties are dominated by hybrid Frenkel and Wannier excitonic states. By tuning the applied fields, various interesting features of dispersion laws were obtained. The main features are the anticrossing of the two branches, quadratic dependence of energy on the electric field and reconfirmation of the quantum confined Stark effect. The application of the magnetic field in the crossed configuration induces a shrinkage of the hybrid exciton wave functions which enhances the coupling term between the excitons. In order to tune the resonance between Frenkel and Wannier excitons and to shift both modes, the redshift induced by the electric ( F optimal) or magnetic ( B optimal) fields was adjusted.

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