Article
Chemistry, Physical
Avanendra Singh, Pritam Dey, Anupa Kumari, Mrinal Kanti Sikdar, Pratap K. Sahoo, Ritwick Das, Tanmoy Maiti
Summary: Temperature-dependent photoluminescence and room temperature nonlinear optical properties of lead-free Cs2NaBiI6 and Cs2KBiI6 perovskite films were studied. Both films showed thermal quenching behavior of free-exciton emission and features of saturable absorption, with nonlinear refractive index and absorption coefficient determined using Z-scan technique. Such characteristics make the films suitable for designing eco-friendly optoelectronic and nonlinear optical devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Partha Kumbhakar, Abhirup Roy Karmakar, Gour Prasad Das, Jayjeet Chakraborty, Chandra S. Tiwary, Pathik Kumbhakar
Summary: The reversible temperature-dependent PL emission quenching properties of Mn2+-doped ZnS QDs have been utilized for the development of a smartphone-based optical thermometer. By studying the temperature-dependent variations of PL, the technique has been successfully applied in polymer films and validated through thermal cycling experiments and the use of a custom Android App for temperature measurement.
Article
Materials Science, Multidisciplinary
Huizi Tang-Wang, Chuan Zhou, Ying Wang, Yingnan Guo, Shufang Wang, Guangsheng Fu, Baolai Liang, Yuriy I. Mazur, Morgan E. Ware, Gregory J. Salamo
Summary: In this study, InAs(Sb)/GaAs self-assembled quantum dots (QDs) with type II band alignment were successfully grown by incorporating Sb into InAs and increasing the beam equivalent pressure ratio. These InAsSb QDs exhibit different characteristics compared to the well-studied type-I InAs QDs in terms of excitation intensity, temperature dependence, and luminescence time dependence. The Sb distribution in the QDs and the wetting layer was also investigated.
Article
Optics
Haolin Li, Xuanyu Zhang, Haizhen Wang, Jiahao Yu, Kexue Li, Zhipeng Wei, Dehui Li, Rui Chen
Summary: This study characterizes the optical properties of self-trapped excitons (STEs) in two-dimensional perovskite materials using laser spectroscopy. It is found that STEs are related to octahedral distortion caused by strong electron-phonon interaction, and trapping and detrapping between STEs and free excitons (FEs) are observed. With increasing temperature, STEs and FEs migrate to each other. Additionally, the existence of STEs inside the material is confirmed through thickness-dependent and two-photon excitation emission.
PHOTONICS RESEARCH
(2022)
Article
Chemistry, Physical
Minh N. Tran, Iver J. Cleveland, Gregory A. Pustorino, Eray S. Aydil
Summary: Bismuth-based halide perovskites are non-toxic alternatives to lead-containing ones for optoelectronics. Cesium bismuth bromide shows good optical properties, with peak wavelengths at 433 and 472 nm. The high quantum yield photoluminescence is likely due to unreacted precursors and impurities, rather than Cs3Bi2Br9 quantum dots.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Timothy G. Mack, Juliana Spinelli, Mark P. Andrews, Patanjali Kambhampati
Summary: This study reports mode-specific resonance Raman enhancements of ligands bound to the surface of colloidal CdSe nanocrystals. The extent of enhancement is directly related to the molecular symmetry of the ligands, and further discussion is made regarding Franck-Condon and Herzberg-Teller contributions and associated selection rules. Resonance Raman can be used to distinguish between possible surface binding motifs of bidentate ligands under continuous wave excitation, demonstrating its usefulness as a characterization tool for adsorbed molecular species on semiconductor NC surfaces.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Simon F. Solari, Lok-Nga Poon, Michael Woerle, Frank Krumeich, Yen-Ting Li, Yu-Cheng Chiu, Chih-Jen Shih
Summary: In this study, a post-synthetic approach is presented to stabilize lead-reduced colloidal metal halide perovskite nanocrystals through high-entropy alloying. By doping the nanocrystals with multiple elements at high concentrations, the resulting high-entropy perovskite nanocrystals show excellent colloidal stability and narrowband emission, with even higher photoluminescence quantum yields and shorter fluorescence lifetimes. This finding brings us one step closer to the commercialization of perovskite nanocrystals.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Amita Ummadisingu, Simone Meloni, Alessandro Mattoni, Wolfgang Tress, Michael Graetzel
Summary: The crystal size in metal halide perovskite films has a significant impact on their opto-electronic characteristics, particularly due to the concurrent effects of quantum confinement and size-dependent structural effects resulting in a wider band gap. This phenomenon assists in photo-induced charge separation and is widely applicable in different compositions and deposition methods.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Electrical & Electronic
Yogesh Singh, Satyendra Kumar Singh, Purnima Hazra
Summary: The present paper investigates suitable methods for preparing lead sulphide quantum dots (PbS QDs) based thin films for optoelectronic applications. The experimental parameters, including types of substrates, synthesis methods, molar concentration, deposition methods, and environmental conditions, were varied to achieve controlled morphological, optical, and electrical properties. The authors chose two different preparation methods for synthesizing PbS QDs and fabricated thin films using the as-synthesized QDs solution to study the effects of the preparation methods on the structural and morphological properties of the samples. The results showed that the preparation methods have a significant impact on the properties of the samples.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Review
Chemistry, Analytical
Likang Zhang, Xue Yang, Zhifu Yin, Linlin Sun
Summary: This review provides an overview of the characteristics, synthesis methods, major applications, and future prospects of carbon quantum dots (CQDs).
Article
Chemistry, Multidisciplinary
Chenglian Zhu, Malwina Marczak, Leon Feld, Simon C. Boehme, Caterina Bernasconi, Anastasiia Moskalenko, Ihor Cherniukh, Dmitry Dirin, Maryna Bodnarchuk, Maksym Kovalenko, Gabriele Raino
Summary: Attaining pure single-photon emission is crucial for quantum technologies. Over the past 20 years, researchers have developed various solid-state quantum emitters, but most of them require complex techniques. However, using quantum emitters that can operate at room temperature can greatly reduce system complexity.
Review
Chemistry, Multidisciplinary
Thomas C. Wareing, Piergiorgio Gentile, Anh N. Phan
Summary: Carbon dots are regarded as a solution to the challenges faced by semiconductor quantum dots due to their high biocompatibility and ability to be synthesized from abundant and non-toxic biomass materials. In the biomedical field, biomass-based carbon dots hold great potential for research, especially in terms of synthesis and application, showing promising future development prospects.
Article
Nanoscience & Nanotechnology
Daniel B. Straus, Robert J. Cava
Summary: By using solid-state synthesis, the band gap of halide perovskite CsPbBr3 can be continuously widened through homovalent substitution, allowing its optical properties to be tailored for absorptive and emissive applications.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Inorganic & Nuclear
Tirukoti Mounika, Kumari Meenu, Shiddappa L. Belagali, Chandan Dharmashekar, K. T. Vadiraj, Chandan Shivamallu, Shiva Prasad Kollur
Summary: This study focuses on the synthesis of ferric oxide quantum dots (FOQDs) using a simple precipitation method and their characterization for photovoltaic applications. The FOQDs exhibited a wide optical band gap and their antimicrobial activity was also investigated.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Xiaoyan Li, Chaojin Xuan, Boxu Yang, Weichen Wang, Mingzhong Wang, Xiaopeng Zhao
Summary: In this paper, center-doped monodisperse Cu-doped ZnSe (ZnSe:Cu) quantum dots are synthesized by co-nucleation doping method, and then a double-layered ZnS shell is grown on the QDs. The prepared ZnSe:Cu/ZnS/ZnS QDs exhibit high photoluminescence intensity and excellent stability in the blue region. The stability is attributed to the ZnS shell grown outside the ZnSe:Cu core, which effectively limits excitons and Cu and isolates O2. This work provides a new approach to enhance the stability of quantum dots.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Yunlan Guo, Chao Liu, Jing Wang, Jian Ruan, Jun Xie, Jianjun Han, Zhao Deng, Xiujian Zhao
Summary: The type and content of alkali metal ions play a crucial role in the crystallization and ion exchange properties of glasses. The study found that the Na2O content in zinc-alumino-silicate glasses negatively correlates with the depth of ion exchange layer, while promoting precipitation of ZnO and beta-Zn2SiO4 nanocrystals, ultimately enhancing Vickers hardness.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Zhanmeng Zhang, Mengmeng Wang, Yingrui Liu, Jicheng Zhang, Jing Wang, Jianjun Han, Chao Liu, Jian Ruan
Summary: In this work, the stability of CsPbBr3 perovskite nanocrystals (NCs) is improved by embedding them in glass and doping with Sr2+ ions. The emission wavelength of CsPbBr3 NCs can be tuned by changing heat treatments and Sr2+ doping concentrations. The maximum photoluminescence quantum efficiency of Sr2+-doped CsPbBr3 glass is 74.2%, and it further increases to 81.7% after 60 days of storage. Sr2+ doping also enhances the thermal stability and water resistance of CsPbBr3 NCs, making them suitable for high-performance optical devices.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Sihao Wang, Yunlan Guo, Yadong Lu, Chao Liu, Zhao Deng, Na Han, Jiedong Cui
Summary: Transparent glass-ceramics with Zn2TiO4 and/or alpha-Zn2SiO4 nanocrystals exhibit increased Vickers hardness, attributed to structural and compositional modifications induced by the precipitation of these nanocrystalline phases, which facilitate K-Na ion-exchange, resulting in enhanced depth of layer and improved hardness.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Engineering, Environmental
Wenchao Zhang, Ying Ye, Yuzhou Hu, Kai Li, Chao Liu
Summary: Cesium lead halide perovskite nanocrystals have unique optoelectronic properties and are widely used in various fields. Embedding them into glass matrices enhances their thermal and chemical stabilities. However, these nanocrystals are still sensitive to intense light irradiation, which limits their applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Suliman Eltayeb Elhadi, Chao Liu, Hamza Adam Haroon
Summary: The successful synthesis of europium-gadolinium co-doped titanium dioxide luminescence thin films using the sol-gel dip-coating method followed by thermal annealing was studied. The higher Eu3+ ions concentration affected the structure and optical properties of the thin films, which were characterized using various techniques. The thin films showed intense red and orange-red emission from Eu3+ ions and a reduction in the optical bandgap energy with increasing Eu3+ ion concentration.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Materials Science, Ceramics
Sihao Wang, Yunlan Guo, Chao Liu
Summary: Photo-catalytic active glass-ceramics hold great potential for addressing environmental issues and offer advantages compared to traditional photo-catalysts. The photo-catalytic properties of these glass-ceramics depend on the presence of photo-catalytic nanocrystals embedded within. Zn2TiO4, a stable intermediate phase of the TiO2-ZnO system, exhibits comparable photo-catalytic activities as traditional photo-catalysts TiO2 and ZnO. In this study, colorless and highly transparent glass-ceramics containing Zn2TiO4 nanocrystals were successfully prepared and their effects on microstructure, mechanical properties, photo-catalytic activities, and recyclability were investigated. The embedded Zn2TiO4 nanocrystals were found to be photo-catalytically active and efficient in degrading organic dyes, suggesting promising applications in organic pollutant degradation for glass-ceramics containing photo-catalytic nanocrystals.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Materials Science, Ceramics
Wenkai Gao, Jicheng Zhang, Chenjie Ji, Luyao Li, Jing Wang, Chao Liu, Jian Ruan, Jianjun Han
Summary: ZnO-(100-x) B2O3 (x = 45-64 mol%) glass-ceramics for ULTCC applications were prepared and studied for their crystallization behavior, sintering mechanism, microstructure and microwave dielectric properties. It was found that zinc boron binary glasses can be formed in the range of 45-73 mol% ZnO content, with 55 mol% ZnO content showing the highest glass-forming ability. The formation of Zn4B6O13 crystal in the glass at a lower temperature than in ceramics, along with the refinement of secondary structure, improved the microwave dielectric properties. The 55 ZnO -45 B2O3 glass-ceramic sintered at 640 degrees C for 5 h exhibited the optimum microwave dielectric properties, as well as high Vickers hardness and good chemical compatibility with Ag or Al electrode, making it a good candidate for ULTCC substrate materials.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Kaimin Cui, Yuqing Wen, Xiaoyu Han, Zhenbang Hao, Jihong Zhang, Jun Xie
Summary: Suitable incorporation of Zn2+ ions into CsPbBr3 quantum dots enhances luminescence efficiency and chemical stability, as well as modifies the emission bands. This study successfully introduced high content Zn2+ ions into CsPbBr3 quantum dots, resulting in a new intense blue emission and green emission, depending on the ZnBr2/PbBr2 precursor ratio. The analysis confirmed the formation of CsZnxPb1-xBr3 alloyed quantum dots with different Zn alloy compositions.
Article
Chemistry, Multidisciplinary
Kai Li, Wenchao Zhang, Luyue Niu, Ying Ye, Jing Ren, Chao Liu
Summary: In this study, inorganic lead-free cesium manganese halide nanocrystals embedded glasses were synthesized for the first time. These glasses exhibited red photoluminescence with broad PL band, tunable photoluminescence from red to green, and outstanding long-term stabilities. Moreover, they also showed highly efficient radioluminescence and stability against high energy irradiation, making them promising for applications in light-emitting diodes and scintillators.
Article
Chemistry, Physical
Rongqing Jiang, Hanwei Wu, Danilo Manzani, Wenchao Zhang, Chao Liu
Summary: In this study, CdSe quantum dots (QDs) with tunable and narrow band intrinsic photoluminescence (PL) were precipitated in silicate glasses by adjusting the heat-treatment temperatures. Analysis revealed that the changes in PL properties were induced by the transformation of surface defects during heat-treatment. The relationship between surface defects and PL properties of CdSe QDs was uncovered, which facilitates their applications in LEDs, backlight displays, and lasers.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Ceramics
Wenchao Zhang, Jingjing Liu, Chao Liu
Summary: Lead sulfide quantum dots (PbS QDs) show unique performance in the near-infrared (NIR) range and can be in-situ precipitated in glass to improve stability and be compatible with silicon photonics. The absorption cross sections of PbS QDs at 1040 nm are found to be 4-13 x 10(-16) cm(2), with bi-and tri-exciton lifetimes of -60 and -10 ps, respectively. Furthermore, the study demonstrates broadband net gain in the 1500-1600 nm range and achieves a maximum gain time of around 20 ps and a gain coefficient of > 120 cm(-1) in single PbS QDs embedded glass. These findings are important for applications in fiber amplifiers, NIR lasers, and high-capacity telecommunication.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Materials Science, Ceramics
Juan Liu, Jingjing Liu, Wenchao Zhang, Kai Li, Chao Liu
Summary: Lead chalcogenide quantum dots with controlled composition, size, and optical properties are obtained in glasses through precipitation and thermal treatment. The addition of chalcogen elements in the glasses and the adjustment of heat-treatment conditions enable modulation of the properties of PbSexS1-x quantum dots. Increasing the concentration of S in the glasses reduces the relative fraction of Se in the quantum dots, while higher heat-treatment temperatures promote the enrichment of Se in the quantum dots. These alloyed quantum dots exhibit improved photoluminescence quantum yields and enhanced resistance to thermal quenching.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Materials Science, Ceramics
Jingjing Liu, Jiahui Wei, Chao Liu
Summary: Cooling rate has a significant effect on the structures and properties of glasses, potentially altering their chemical, physical, and mechanical properties, as well as their crystallization behaviors. This study investigates the impact of cooling rate on the crystallization and optical properties of glasses used to precipitate semiconductor nanocrystals, using sodium zinc silicate glasses as a typical example.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Yuzhou Hu, Ying Ye, Wenchao Zhang, Kai Li, Yao Zhou, Yudong Zhang, Zhao Deng, Jianjun Han, Xiujian Zhao, Chao Liu
Summary: Precise and efficient patterning of light-emitting structures in high resolution and full-color light-emitting diodes is achieved by light-induced inverted patterning of nanocrystals in glasses for micro-light-emitting diodes. This method involves the use of ultrafast laser pulse to induce structural destruction and amorphization of nanocrystals in glasses, resulting in inverted luminescent patterns. The high-throughput patterning of micrometer-scale, thermally stable, and highly photoluminescent structures in nanocrystals embedded glass provides a novel way to fabricate high-performance and ultrahigh-resolution color conversion layers for micrometer-scale light-emitting diodes.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Ying Ye, Kai Li, Luyue Niu, Jing Ren, Chao Liu
Summary: In this study, all-inorganic Cs3CdBr5 nanocrystals (NCs) were precipitated in glass with the incorporation of Mn2+. The introduction of Mn2+ acted as a nucleation agent, promoting the growth and improving the optical properties of Cs3CdBr5 NCs embedded in glass. It was found that the [MnBr4]-[MnBr4] structural units were strongly coupled in Cs3Cd1-xMnxBr5 NCs, resulting in efficient energy transfer and dual-band emission. The temperature-dependence of the emission from the [MnBr4] unit and [MnBr4]-[MnBr4] couples enabled high-sensitive temperature sensing from Cs3Cd1-xMnxBr5 NCs embedded in glasses.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Ceramics
Deniz Bozoglu, Sahin Yakut, Kemal Ulutas, Deniz Deger
Summary: Thin film polyethylene oxide, produced by the thermal evaporation technique, exhibits structural and property differences compared to bulk polyethylene oxide. The dielectric constant of polyethylene oxide thin film is 10 times greater than that of bulk polyethylene oxide. There is consistency among dielectric constants, activation energies, and free volume fractions for both thin film and bulk samples. Polyethylene oxide thin film is observed to be more brittle than bulk polyethylene oxide.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Xiaozhen Fan, Zhuo Wang, Zheng Fang, Huiqun Ye, Jinju Zheng, Jianqiang Zhang, Yanjun Qin, Yao Zhai, Yanlong Miao, Zixiang Zhao, Can Yang, Jiajun He, Zhenghang Wei, Yunzhang Fang
Summary: The microscopic strain evolution and microstructural of FeCuNbSiB amorphous alloy samples were studied under both free and tensile stress annealing conditions. It was found that an amorphous-nanocrystalline structure was developed in both samples after annealing at 813 K, and the size of nanocrystals was limited by the applied stress.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Atsushi Tanaka, Atsuki Saito, Takashi Murata, Ayako Nakata, Tsuyoshi Miyazaki
Summary: Although molecular dynamics (MD) simulation is a powerful tool for investigating the atomic-scale structures of complex materials, its reliable and accurate application to multi-component glass systems faces challenges due to limited force fields (FFs) and the complexity of chemical environments. This study demonstrates the feasibility of efficient and accurate large-scale density functional theory (DFT) calculations for multi-component glass systems. The evaluation of classical FFs based on the results of large-scale DFT calculations reveals low accuracy for non-bridging oxygen atoms, and differences in Si-O-Si angle distribution and electronic structure for X = Mg.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Petr Shvets, Ksenia Maksimova, Aleksandr Goikhman
Summary: In this study, vanadium oxide xerogel samples were successfully synthesized through a liquid phase reaction and the interaction of films with water. The samples were thoroughly analyzed using X-ray diffraction and Raman spectroscopy, revealing the existence of two distinct phases. It was also discovered that previous misinterpretations regarding the high-pressure polymorph structure were due to the formation of a high-temperature phase. These findings highlight the potential for further refining and expanding the current structural models of vanadium oxide xerogel in future research efforts.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Yiran Zhang, Jing Pang, Qingchun Xiang, Dong Yang, Yinglei Ren, Xiaoyu Li, Keqiang Qiu
Summary: The effect of the volume fraction of body-centered cubic (BCC) crystal on the room temperature brittleness of Fe-based amorphous nanocrystalline alloys was investigated. Molecular dynamics simulations were conducted to obtain seven model samples with different embedded BCC nanocrystal contents. The results showed a gradient decrease in the plasticity of the alloys with different nanocrystal contents.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Moustafa Sahnoune Chaouche, Hani K. Al-Mohair, Shavan Askar, Barno Sayfutdinovna Abdullaeva, Naseer Ali Hussien, Ahmed Hussien Alawadi
Summary: In this work, a novel micromechanical data-driven machine learning framework was proposed to characterize material parameters in bulk metallic glasses. The framework utilized nanoindentation simulations with Berkovich and spherical tips to compile a vast collection of data on material behavior in BMGs. The developed machine learning model efficiently predicted critical material properties and highlighted the importance of input feature weight functions.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Louisiane Verger, Vinuyan Ganesaratnam, Virginie Nazabal, Sebastien Chenu, Christophe Calers, David Le Coq, Laurent Calvez, Olivier Hernandez, Xiang-Hua Zhang
Summary: Crystallization in Ga, Sb, and Se glasses was studied, and a correlation between Se content, crystalline phases, and electrical conductivity was observed. The resulting glass-ceramics exhibited significantly higher conductivity compared to other Se-based glass-ceramics.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Seong-Sik Shin, Ga-Yeong Kim, Byeonggwan Lee, Jae-Hwan Yang, Yeon-Su Son, Jung-Hoon Choi, Jae-Young Pyo, Ki Rak Lee, Hwan-Seo Park, Hyun Woo Kang
Summary: In this study, silver tungstate-tellurite glass with different loading of AgI was developed for immobilization of radioactive iodine. The effects of increasing the amount of AgI on the glass matrix were investigated. The leaching properties of all samples were evaluated, and it was found that the release of all elements satisfied the US regulation.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Chunghee Nam
Summary: This study demonstrates the prediction performance of a CNN regression model for the magnetic entropy changes and transition temperatures of bulk metallic glasses with magnetocaloric effects. The model achieved high prediction performance, as measured by the determination coefficient and root mean square error. The results showed good agreement with experimental values and reported results.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
A. Hosny, Y. M. Moustafa, G. El-Damrawi
Summary: In this study, crystalline glass ceramics were obtained directly from glasses using an ion exchange process between lead bromide and oxygen ions. The addition of lead bromide caused significant changes in the glass structure and the formation of specific crystalline phases.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Luana Cristina Feitosa Alves, Jheimison Ferreira Gomes, Natacya Fontes Dantas, Maria Nayane Queiroz, Pablo Nabuco Portes, Francielle Sato, Nilma de Souza Fernandes, Karina Miyuki, Celso Vataru Nakamura, Alysson Steimacher, Franciana Pedrochi
Summary: This study evaluated the influence of CaF2 addition on the bioactivity of the samples. The results showed that the samples exhibited good bioactivity and cytocompatibility, making them suitable for biomedical applications.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
N. Keninger, S. Feller
Summary: The principles of Topological Constraint Theory (TCT) were used to study alkali borate and silicate glass systems. Structural models were developed based on experimental data and used to predict properties of the glass.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Hao Wang, Chengliang Zhao, Chuntao Chang, Shengli Zhu, Zhankui Zhao
Summary: The relationship between the heterogeneous structure and structural relaxation in metallic glasses was explored by investigating the quasielastic and viscoelastic behavior of a Zr55Cu30Ni5Al10 metallic glass. Stress-annealing treatment was used to retain elastic strain energy, and a unique creep recovery phenomenon was observed during the reheating process. The Maxwell model was employed to qualitatively describe the mechanisms of elastic strain energy retention and release.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Sihyung Lee, Giyeol Han, Karuppasamy Pandian Marimuthu, Hyungyil Lee
Summary: This study presents a method for extracting FVM parameters of Zr-based TFMG using MD and FEA, and validates the method through simulation and experiments.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
Article
Materials Science, Ceramics
Nedra Saad, Mohamed Haouari, Mayssa Ibrahim, Noura Amamou
Summary: In this work, we investigated the optical properties of a fluorophosphate glass system doped with Tb3+ and Eu3+ ions. We found that the emitted light can be tuned by changing the doping concentration, excitation wavelength, or excitation power, which is important for the design of solid-state lighting sources.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2024)
