Physical aging of selenium glass: Assessing the double mechanism of equilibration and the crystallization process

A Morvan, N Delpouve, A Vella… - Journal of Non-Crystalline …, 2021 - Elsevier
This work focuses on the study of the physical aging of a selenium glass by differential
scanning calorimetry (DSC) and fast scanning calorimetry (FSC). Aged samples of 30 and …

Positronics of subnanometer atomistic imperfections in solids as a high-informative structure characterization tool

O Shpotyuk, J Filipecki, A Ingram, R Golovchak… - Nanoscale research …, 2015 - Springer
Methodological possibilities of positron annihilation lifetime (PAL) spectroscopy applied to
characterize different types of nanomaterials treated within three-term fitting procedure are …

Positron annihilation characterization of free volume in micro-and macro-modified Cu0. 4Co0. 4Ni0. 4Mn1. 8O4 ceramics

H Klym, A Ingram, O Shpotyuk, I Hadzaman… - Low Temperature …, 2016 - pubs.aip.org
Free volume and pore size distribution size in functional micro and macro-micro-modified Cu
0.4 Co 0.4 Ni 0.4 Mn 1.8 O 4 ceramics are characterized by positron annihilation lifetime …

Nanocrystallization of α-CsPbI3 perovskite nanocrystals in GeS2-Sb2S3 based chalcogenide glass

K Weng, N Long, Y Guo, Q Jiao, S Dai, C Lin - Journal of the European …, 2020 - Elsevier
Black α-phase CsPbI 3 of cubic perovskite structure receives intense attentions recently for
its unique combination of high photoluminescence quantum yield, suitable bandgap, and …

'Cold' crystallization in nanostructurized 80GeSe2-20Ga2Se3 glass

H Klym, A Ingram, O Shpotyuk, L Calvez… - Nanoscale research …, 2015 - Springer
Abstract'Cold'crystallization in 80GeSe 2-20Ga 2 Se 3 chalcogenide glass nanostructurized
due to thermal annealing at 380° C for 10, 25, 50, 80, and 100 h are probed with X-ray …

[PDF][PDF] Development of a temperature and heat flux measurement system based on microcontroller and its application in ophthalmology

C Wang, H Jiao, L Anatychuk… - Measurement Science …, 2022 - sciendo.com
The paper describes the design and technical parameters of a medical thermoelectric
device developed for diagnosing and monitoring the ophthalmic diseases. The main …

Broad emission in Bi-doped GeGaSe chalcogenide glass and glass-ceramic

L Qian, R Wang, W Wang - Journal of Non-Crystalline Solids, 2024 - Elsevier
Abstract Bi-doped Ge 23.5 Ga 11.8 Se 64.7 glasses were prepared, and compositional
dependence of broadband near-infrared photoluminescence at 1.26 μm was investigated …

Nanostructural Free-Volume Effects in Humidity-Sensitive MgO-Al2O3 Ceramics for Sensor Applications

H Klym, A Ingram, O Shpotyuk, I Hadzaman… - Journal of Materials …, 2016 - Springer
Abstract Technologically modified spinel MgO-Al 2 O 3 ceramics were prepared from Al 2 O
3 and 4MgCO 3· Mg (OH) 2· 5H 2 O powders at sintering temperatures of 1200, 1300, and …

Chalcogenide glass ceramics: a high-performing innovative infrared acousto-optic material

Z Cao, S Dai, S Ding, M Wang, L Xu, C Liu… - Journal of the European …, 2021 - Elsevier
The acousto-optic (AO) characteristics of the 80GeSe 2-20Ga 2 Se 3 chalcogenide glass
and glass-ceramic (GC) samples at 10.6 μm is compared for the first time in this study. The …

Positron Annihilation Lifetime Spectroscopy Insight on Free Volume Conversion of Nanostructured MgAl2O4 Ceramics

H Klym, I Karbovnyk, S Piskunov, AI Popov - Nanomaterials, 2021 - mdpi.com
Herein we demonstrate the specifics of using the positron annihilation lifetime spectroscopy
(PALS) method for the study of free volume changes in functional ceramic materials …