Bulk Glassy GeTe2: A Missing Member of the Tetrahedral GeX2 Family and a Precursor for the Next Generation of Phase-Change Materials

A Tverjanovich, M Khomenko, CJ Benmore… - Chemistry of …, 2021 - ACS Publications
Vitreous germanium disulfide GeS2 and diselenide GeSe2 belong to canonical
chalcogenide glasses extensively studied over the past half century. Their high-temperature …

Pressure-Driven Chemical Disorder in Glassy As2S3 up to 14.7 GPa, Postdensification Effects, and Applications in Materials Design

E Soignard, OB Tsiok, AS Tverjanovich… - The Journal of …, 2019 - ACS Publications
A small difference in energy between homopolar and heteropolar bonds and the glass-
forming ability of pure chalcogens leads to unexpected trends in densification mechanisms …

Chemical and structural variety in sodium thioarsenate glasses studied by neutron diffraction and supported by first-principles simulations

M Kassem, T Bounazef, D Fontanari… - Inorganic …, 2020 - ACS Publications
Sodium-conducting sulfide glasses are promising materials for the next generation of solid-
state batteries. Deep insight into the glass structure is required to ensure a functional design …

Interaction of toxic metals with Penta Variant Functional groups decorated carbon quantum dots: An In-silico Investigation using Density Functional Theory …

CBS Kumar, S Jayan, RP Reji, Y Sivalingam… - Journal of …, 2025 - Elsevier
Using quantum chemical density functional theory, we have examined the detection ability of
functionalized carbon quantum dots (CQDs) with different sizes and five functional groups …

Investigation of the substitution of mercury by silver in Ag2S-HgS-GeS2 glasses: Macroscopic, electrical and vibrational properties

M Mcheeck, K Shaheen, M Bokova, M Kassem… - Journal of Non …, 2024 - Elsevier
The evolution of structure and physical properties was investigated in the (Ag 2 S) x (HgS)
50-x (GeS 2) 50 system. It was found that the density increases with increasing silver sulfide …

Bent HgI2 Molecules in the Melt and Sulfide Glasses: Implications for Nonlinear Optics

M Kassem, M Bokova, AS Tverjanovich… - Chemistry of …, 2019 - ACS Publications
Nonlinear optical (NLO) crystals are widely used in advanced photonic technologies for
second harmonic and difference frequency generation (SHG and DFG, respectively) …

Pb2+ potentiometric chemical sensors based on lead and silver doped thioaresenate glasses

B Alrifai, M Kassem, J Toufaily, M Bokova… - Solid State Sciences, 2022 - Elsevier
Lead doped chalcogenide glass compositions, in the pseudo-ternary AgI-PbS-As 2 S 3,
were examined as active membrane materials for the construction of Pb (II) ion-selective …

Unique design of porous organic framework Showing efficiency toward removal of toxicants

R Kumar, R Shunmugam - ACS omega, 2017 - ACS Publications
This report deligates about the creation of porous polymeric organic framework (POF) from
dialkynes and poly (alkyne) with their discovery as an efficient set of purifier. POF showed …

Unexpected role of metal halides in a chalcogenide glass network

R Zaiter, M Kassem, D Fontanari, A Sokolov, T Usuki… - Materials & Design, 2022 - Elsevier
Chalcogenide glasses containing light alkali and Group 11 (Cu, Ag) halides MY (Y= Cl, Br, I)
exhibit high ionic conductivity while their heavy alkali counterparts show promising …

Mercury Thiogermanate Glasses HgS-GeS2: Vibrational, Macroscopic, and Electric Properties

R Zaiter, M Kassem, M Bokova, A Cuisset… - The Journal of …, 2020 - ACS Publications
Glasses in the pseudo-binary system (HgS) x (GeS2) 1–x were synthesized over the
concentration range of 0.0≤ x≤ 0.5. The fundamental glass properties (macroscopic …