Variations in the band gap of semiconducting glassy chalcogenides with composition

R Neffati, I Boukhris, I Kebaili… - Philosophical …, 2021 - Taylor & Francis
Semiconducting glassy chalcogenides (ChGs) have broad technological applications owing
to the ability to tune their band gap through composition change. However, there is a lack of …

Ab initio and Raman study of medium range ordering in GeSe2 glass

R Holomb, V Mitsa, E Akalin, S Akyuz… - Journal of non-crystalline …, 2013 - Elsevier
High resolution Raman spectra of GeSe2 glass were measured and fitted using individual
Gaussian components. The structural origin of the components were interpreted using the …

Synergistic Photocatalytic Activity of TiO2/BiVO4 Nanocomposites: Optimization, Characterization, and Recyclability for Dye and Antibiotic Degradation

M Liaqat, S Kausar, T Iqbal, S Afsheen… - Journal of Inorganic and …, 2024 - Springer
In this current work, pristine Ti O 2, BiV O 4, and Ti O 2/BiV O 4 (1%, 3%, 5%, and 7%)
nanocomposites were prepared for the deteriorate of MB dye and tetracycline antibiotic. For …

Coherent Light Photo-modification, Mass Transport Effect, and Surface Relief Formation in AsxS100-x Nanolayers: Absorption Edge, XPS, and Raman Spectroscopy …

O Kondrat, R Holomb, A Csik, V Takáts, M Veres… - Nanoscale Research …, 2017 - Springer
As x S 100-x (x= 40, 45, 50) thin films top surface nanolayers affected by green (532 nm)
diode laser illumination have been studied by high-resolution X-ray photoelectron …

Structural Nature of Boson Peak and Low‐Temperature Heat Excess in As2S3 Glass

R Holomb, V Tkáč, V Mitsa, A Feher… - physica status solidi …, 2020 - Wiley Online Library
Comparative analysis of experimentally measured Raman spectra of crystalline (c), glassy
(g), and powdered c‐As2S3 samples is performed based on vibrational modes of As6S6+ …

Compositional dependence of physicochemical properties of quaternary (0.9 GeS2-0.1 CdS) 100-x (Sb2S3) x chalcogenide glasses for solar cells and near infrared …

I Boukhris - Materials Today Communications, 2021 - Elsevier
The impact of the addition of antimony sulfide (Sb 2 S 3) to (0.9 GeS 2-0.1 CdS) 100-x (Sb 2
S 3) x chalcogenide glasses (20≤ x≤ 80 at.%) was theoretically investigated. The molar …

New ring-like models and ab initio DFT study of the medium-range structures, energy and electronic properties of GeSe2 glass

R Holomb, V Mitsa, S Akyuz, E Akalin - Philosophical Magazine, 2013 - Taylor & Francis
Ab initio DFT calculations were performed on GenSem nanoclusters (n= 2, 3, 5, 6, 12; m= 6–
9, 14, 16, 30) that represent the local structure of GeSe2 glass and on some 'defect'GenSem …

Impact of local atomic arrangements on ovonic threshold switching of amorphous Ge-As-Se thin films

SY Shin, S Lee, B Cheong, YG Choi - Scripta Materialia, 2022 - Elsevier
Abstract Amorphous Ge-As-Se film features a good ovonic threshold switching (OTS)
performance. However, both endurance of OTS operation and crystallization temperature …

The effect of adding CsCl content on physicochemical properties of (GeS2–Sb2S3) 100-x (CsCl) x (0≤ x≤ 40 mol%) chalcogenide glass ceramics

I Kebaili - Optical Materials, 2021 - Elsevier
The physico-chemical properties of (GeS 2–Sb 2 S 3) 100-x (CsCl) x (0≤ x≤ 40 mol%)
chalcogenide glass ceramics were theoretically studied. The band gap (E g) of the studied …

Investigation of atmospheric corrosion by photon energy dependent luminescence and Raman spectroscopy in aged and freshly fractured g-, c-As2S3 with …

V Mitsa, R Holomb, A Marton, M Veres, S Tóth… - Journal of Non …, 2016 - Elsevier
We have studied the light emission properties of aged glassy (g-) and crystalline (c-) As 2 S
3 and freshly fractured glassy As 2 S 3 with photosensitive realgar inclusions in the 1.5–4.5 …