Optical properties of ternary alloys MgZnO in the infrared spectrum

• Опубліковано в: : Semiconductor Physics Quantum Electronics & Optoelectronics
• Дата: 2018
• Автори: Venger, E.F., Venger, I.V., Korsunska, N.O., Melnichuk, L.Yu., Melnichuk, O.V., Khomenkova, L.Yu.
• Формат: Стаття
• Мова: Англійська
• Опубліковано: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2018
• Теми: Optics
• Онлайн доступ: https://nasplib.isofts.kiev.ua/handle/123456789/215316
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Optical properties of ternary alloys MgZnO in the infrared spectrum / E.F. Venger, I.V. Venger, N.O. Korsunska, L.Yu. Melnichuk, O.V. Melnichuk, L.Yu. Khomenkova // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2018. — Т. 21, № 4. — С. 417-423. — Бібліогр.: 25 назв. — англ.

Properties of thin films of ternary alloys MgₓZn₁₋ₓO on the optically anisotropic Al₂O₃ substrates in the area of “residual rays” of film and substrate are first investigated using the method of infrared spectroscopy and dispersion analysis of reflection coefficients. It was established that the changes in the thickness of the film and the content of Mg substantially deform the spectrum of reflection in the area of “residual rays” of the film and the substrate, decreasing the reflectivity. First, by means of Kramers–Kronig relations with the use of the method of dispersion analysis of infrared reflection spectra, the static dielectric constant of MgₓZn₁₋ₓO structure has been obtained at different values of х, when orientation is Е⊥С. It was ascertained that the MgₓZn₁₋ₓO/Al₂O₃ structures are well modelled when using the mutually agreed parameters, obtained earlier for the single crystals of magnesium oxide, zinc oxide, and leicosapphire at the orientation Е⊥С. It was theoretically shown and experimentally grounded that the assurance of the obtained optical parameters of MgₓZn₁₋ₓO films by the non-destructive method of infrared spectroscopy in the wide spectral range. The obtained results are well in agreement with the literature data.