Temperature changes in the function of the shape inherent to the band of exciton absorption in nanofilm of layered semiconductor

• Published in: Semiconductor Physics Quantum Electronics & Optoelectronics
• Date: 2014
• Main Authors: Derevyanchuk, A.V., Pugantseva, O.V., Kramar, V.M.
• Format: Article
• Language: English
• Published: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2014
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/118372
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Temperature changes in the function of the shape inherent
 to the band of exciton absorption in nanofilm
 of layered semiconductor / A.V. Derevyanchuk, O.V. Pugantseva, V.M. Kramar // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2014. — Т. 17, № 2. — С. 188-192. — Бібліогр.: 21 назв. — англ.

Represented in this paper is the method and results of theoretical
 investigations aimed at the influence of spatial confinement effects, self-polarization of
 heterojunction planes as well as exciton-phonon interaction on the position and shape of
 the band corresponding to exciton absorption in nanofilms of layered semiconductor in a
 dielectric matrix. The heterojunction is considered as unloaded, the nanosystem is
 modeled by an infinitely deep quantum well and characterized by an essential difference
 between dielectric permittivities on both sides of the heterojunction. Calculated in this
 work are the dependences for the form-function of the absorption band on the thickness
 of lead iodide nanofilm embedded into polymer E-MAA or glass, and on its temperature.
 The results of calculations are in good accordance with known data of experimental
 measurements.