Optical and energy properties of CdSe1-xSx thin films obtained by the method of high-frequency magnetron sputtering

• Autorzy: Kashuba Andrii , Andriyevsky Bohdan , Ilchuk Hryhorii , Semkiv Ihor , Andriyevska Ludmila , Moroz Iryna

Identyfikatory

DOI

10.24425/opelre.2025.153808

• Języki publikacji: EN

Abstrakty

EN

CdSe₁-ₓSₓ (x = 0, 0.3, 0.4, 0.6, and 1) thin films were deposited on a quartz and silicon substrate using high-frequency magnetron sputtering. X-ray diffraction analysis estimated that the CdSe₁-ₓSₓ thin films are crystallized in a hexagonal structure [structure type - ZnO, space group P6₃mc (No. 186)]. Spectral dependence of the optical transmittance between 300 and 1500 nm of the obtained thin films at room temperature was measured. Normalized integral optical transmittance, optical band gap, spin-orbit splitting, and the value of the bowing parameter of the CdSe₁-ₓSₓ thin films are determined. The values of the optical band gaps for CdSe₁-ₓSₓ thin films were estimated using the two methods (by Tauc plot and dT/dλ). Concentration dependences of the energy gaps connected with the leading optical transitions in CdSe₁-ₓSₓ (Г₈^ᵥ-Г₆^c, Г₇^ᵥ-Г₆^c) and spin-orbit splitting are studied. It is shown that the concentration dependences of main optical transitions are quadratic. The principal explanation for this seems to be the Burstein-Moss effect, which is caused by the doping atoms' excess carriers (electrons and holes).

Słowa kluczowe

EN

thin film; optical transmission; band gap; bowing parameter; spin-orbit splitting

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2025
• Tom: Vol. 33, No. 2
• Strony: art. no. e153808
• Opis fizyczny: Bibliogr. 32 poz., rys., tab., wykr.

Twórcy

autor

Kashuba Andrii

• Department of General Physics, Lviv Polytechnic National University, 12 Stepan Bandera St., Lviv, 79013, Ukraine

• https://orcid.org/0000-0003-3650-3892

autor

Andriyevsky Bohdan

• Faculty of Electronics and Computer Sciences, Koszalin University of Technology, ul. Śniadeckich 2, 75‑453 Koszalin, Poland

• https://orcid.org/0000-0001-5128-9869

autor

Ilchuk Hryhorii

• Department of General Physics, Lviv Polytechnic National University, 12 Stepan Bandera St., Lviv, 79013, Ukraine

• https://orcid.org/0000-0002-6647-4343

autor

Semkiv Ihor

• Department of General Physics, Lviv Polytechnic National University, 12 Stepan Bandera St., Lviv, 79013, Ukraine

• https://orcid.org/0000-0003-3432-8779

autor

Andriyevska Ludmila

• Faculty of Civil Engineering, Environmental and Geodetic Sciences, Koszalin University of Technology, ul. Śniadeckich 2, 75‑453 Koszalin, Poland

• https://orcid.org/0000-0002-4111-4544

autor

Moroz Iryna

• Department of General Physics, Lviv Polytechnic National University, 12 Stepan Bandera St., Lviv, 79013, Ukraine

• https://orcid.org/0000-0002-4029-6905

Bibliografia

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Uwagi

1. This research was supported by the National research foundation of Ukraine (project no. 2022.01/0163).

2. Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).