Open Access

ARTICLE

Synthesis and optical properties of the glassy compound As_0.63S_2.70Sb_1.37Te_0.30

M. Iovu^a, I. Culea^a, V. Verlan^a, Olga Bordian^a, M. Enachescu^b,d, A. A. Popescu^c,*, D. Savastru^c, A. Lazar^d

a Institute of Applied Physics, Str. Academiei 5, MD-2028 Chisinau, R. Moldova
b Center for Surface Science and Nanotechnology, University Politehnică of Bucharest, Splaiul Independentei 313, Bucharest, 060042 Romania
c National Institute of Research and Development for Optoelectronics INOE 2000, Str. Atomistilor 409, 077125, Magurele, Romania
d S.C. NanoPRO START MC S.R.L., 110310 Pitesti, Romania

* Corresponding Author:

Chalcogenide Letters 2023, 20(5), 387-392. https://doi.org/10.15251/CL.2023.205.387

Received 15 March 2023; Accepted 31 May 2023;

Abstract

The amorphous calcogenide semiconductor As_0.63S_2.70Sb_1.37Te_0.30 was synthesized and thin films based on it were obtained. XRD and optical images investigations showed the amorphous and homogeneous nature of the samples. The optical transmission spectrum in the UV-Vis range of As_0.63S_2.70Sb_1.37Te_0.30 thin films shows good transparency in the spectral range 0.7-3.5 µm with a single absorption threshold at 2.05 eV and with refractive index in infrared 2.3. The irradiation of films with light leads to a parallel shift of the transmission spectrum to the IR range. The materials with As_0.63S_2.70Sb_1.37Te_0.30 composition have high optical transparency have high optical transparency that make they promises for applications in holographic memory devices, optical amplitude and phase recorder, optical processing units and others.

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Keywords

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