A5014729174- Phase-change materials and chalcogenides
- Chalcogenide Semiconductor Thin Films
- Thermal and Kinetic Analysis
- Glass properties and applications
- Chemical Thermodynamics and Molecular Structure
- Advanced Photocatalysis Techniques
- Solid-state spectroscopy and crystallography
- TiO2 Photocatalysis and Solar Cells
- Pharmaceutical and Antibiotic Environmental Impacts
- Advanced Semiconductor Detectors and Materials
- Pigment Synthesis and Properties
- Recycling and utilization of industrial and municipal waste in materials production
- Regional Development and Management Studies
- Water Quality Monitoring and Analysis
- Chemistry and Chemical Engineering
- Epoxy Resin Curing Processes
- Nonlinear Optical Materials Studies
- Water and Wastewater Treatment
- Crystal Structures and Properties
- Thin-Film Transistor Technologies
- Analytical chemistry methods development
- Nonlinear Optical Materials Research
- Metallic Glasses and Amorphous Alloys
- Fullerene Chemistry and Applications
- Advanced Physical and Chemical Molecular Interactions
University of Novi Sad
2013-2024
The temperature dependence of direct current (DC) conductivity, silver content, and the presence crystalline phases in amorphous annealed chalcogenides from Agx(As2(Te0.5Se0.5)3)100-x system was investigated. Amorphous samples exhibited semiconducting behavior, with conductivity increase as content raised. This primarily attributed to electron transitions into delocalized states localized near Fermi level. Percolation behavior observed containing 7 at.% or more silver. For below 9 at.%,...
The paper describes the results of a study inuence silver content on absorption edge and optical band gap newly synthesized glasses Agx(As40S30Se30)100-x type for x = 0, 0.5, 1, 2, 3, 5 at.% corresponding lms.The synthesis bulk samples was performed in rocking furnace from high-purity elemental components by melt quenching method.Films were prepared pulsed laser deposition.Transmission spectra investigated recorded at room temperature.The determined extrapolating linear parts spectra.It...
The processes of glass-transition and crystallization chalcogenide glass As40Se30Te30 with 5 at.% silver were analyzed using differential scanning calorimetry. values temperatures activation energy determined. Two also detected three-dimensional growth. Using non-isoconversional models the energies for both amounted to 112(2) kJ/mol 97(2) kJ/mol. Isoconversional used track changes in energy. presence Te significantly affects thermal parameters as well structure while Ag does not change...
Through isoconversional analysis of differential scanning calorimetry data, thermally induced processes glass transition and crystallization in Cux(As2Se3)100-x chalcogenide glasses (x=1, 5, 10, 15 at.%) were investigated. The characteristic values activation energy its changes during the calculated using advanced method developed by S. Vyazovkin as well forms Kissinger Moynihan relations. results showed variation with extent conversion. are slightly changing increase Cu content from 1 to 5...
This study evaluates application of three different nanopowder mixtures for decomposition diclofenac (DCF), one frequently detected pharmaceutical in wastewater. Analyzed photocatalytic ZnO/SnO2, ZnO/TiO2 and ZnO/In2O3 are the first time used degradation. A set experiments were performed order to investigate influence catalyst concentration (0.10–0.60 mg mL−1), initial (0.002–0.010 mL−1) pH value (5–9). The increase leads a decrease degradation rate constant, which is most pronounced ranges...
We report an investigation of the optical properties, structure, and vibrational modes SbxAs37-xS48I15 glasses (0 at. % < x 37 %). Optical parameters such as refractive index, absorption coefficient, band gap are correlated with glass composition. All were found to follow almost linear dependence antimony content x. Both index edge wavelength exhibit a systematic increase against Off-resonant Raman spectra measured analyzed. Structural units, representative optimized by density functional...
In this paper we present the results of optical and spectral characteristics quasibinary glassy system Bi-As2S3.From obtained spectra determined band gap level structural disorder for different doping atoms content.The decrease with increase on Bi content was discussed in terms chemical composition arrangement units, using Raman spectroscopy results.The Wemple-DiDomenico model used to describe refractive index behavior correlations between linear nonlinear quantities investigated...
This paper describes the results of determination some thermal and structural parameters glasses from Cux(As2Se3)100-x system for x = 0, 1, 5, 10 15 at.%.Based on dierential scanning calorimetry curves taken at dierent heating rates, glass transition temperature Tg, onset crystallization Tonset, melting Tm crystalline units formed are determined.The values activation energy Eg process calculated.These characteristic temperatures served as basis calculation stability towards crystallization.
Abstract With the aim of characterizing optical properties glasses from system Bi x (As 2 S 3 ) 100‐x , for x=0.5, and 4 at.% Bi, their absorption coefficients index refraction were measured. The extrapolation linear parts coefficient dispersion curve different sample thicknesses enabled determination band gap E g . Also, in view range values all three glasses, it was possible to determine Urbach slope e width tails localized states gap. results refractive measurement treated using Wemple...
Kinetic analysis of thermally induced processes was carried out in Cux(As2Se3)100-x glass with high copper content, x = 20 and 25 at.%. Non-isothermal differential scanning calorimetry at different heating rates used to analyze the glass-transition crystallization processes. It shown that temperature increases increase content examined glasses during transition process do not show large configurational changes structure. Apparent activation energy determined using Kissinger method. In...