Linear and non-linear optical properties of (Ge1S2)100-X(As2Te3)X (0 ≤ x ≤ 100) films

被引:4
作者
Alsaif, N. A. M. [1 ]
Aly, K. A. [2 ]
Ibraheem, Awad A. [3 ,4 ]
机构
[1] Princess Nourah Bint Abdulrahman Univ, Coll Sci, Dept Phys, Riyadh, Saudi Arabia
[2] Univ Jeddah, Coll Sci & Arts Khulais, Phys Dept, Jeddah, Saudi Arabia
[3] Al Azhar Univ, Phys Dept, Assiut Branch, Assiut 71524, Egypt
[4] King Khalid Univ, Phys Dept, Abha, Saudi Arabia
关键词
Chalcogenides; Film absorption; Band gap; Optical devices; THIN-FILMS; GE-S; ELECTRONIC POLARIZABILITY; CONSTANTS; CONDUCTIVITY; DEPENDENCE; BASICITY; GLASSES; CO;
D O I
10.1016/j.optmat.2024.114972
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The current investigation clarifies the optoelectronics studies for (Ge2S8)100-x(As2Te3)x (GSAT) (0 <= x <= 100) noncrystalline films. The GSAT glassy system has been synthesised using the conventional melting quench method. GAST films were thermally deposited on chemically washed glass substrates. The reflectance spectra were used to precisely evaluate the absorbance (x), index of refraction (n), and film thicknesses (t) for GSAT glasses. The values of the optical band gap Eg are lessening; nevertheless, the n values rise with the enhancement of As2Te3 at. %. Sellmeier's dispersion model helps one to estimate the dispersion parameters vis. the oscillator position (lambda o) and strength (So), the dispersion energy (Ed), and the static index of refraction (no). Furthermore, the compositional dependence of the dielectric optical parameters has been investigated. The obtained results suggest that GSAT films are suitable for many optical devices, like optical sensors, switches, lenses, mirrors, infrared sensors, and detectors.
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页数:9
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