Represented in this paper is the method and results of theoreticaludinvestigations aimed at the influence of spatial confinement effects, self-polarization ofudheterojunction planes as well as exciton-phonon interaction on the position and shape ofudthe band corresponding to exciton absorption in nanofilms of layered semiconductor in auddielectric matrix. The heterojunction is considered as unloaded, the nanosystem isudmodeled by an infinitely deep quantum well and characterized by an essential differenceudbetween dielectric permittivities on both sides of the heterojunction. Calculated in thisudwork are the dependences for the form-function of the absorption band on the thicknessudof lead iodide nanofilm embedded into polymer E-MAA or glass, and on its temperature.udThe results of calculations are in good accordance with known data of experimentaludmeasurements.
展开▼
