Article
Materials Science, Ceramics
Pardeep Kaur, Preet Kaur, Jamila S. Alzahrani, M. S. Al-Buriahi, Z. A. Alrowaili, Tejbir Singh
Summary: Europium (Eu3+)-doped heavy metal phosphate glass systems were synthesized and their optical and spectroscopic characteristics were analyzed. The synthesized samples exhibited prominent emissions in the red region and had high branching ratio values and color purity, suggesting their potential use in red laser applications.
CERAMICS INTERNATIONAL
(2022)
Article
Thermodynamics
Ravi P. Tripathi, M. A. Alvi, Shamshad A. Khan
Summary: The research focused on investigating the thermal, optical, and electrical properties of Se85In15-xBix alloys in bulk and thin film forms. Various parameters such as melting temperature, crystallization temperature, glass transition temperature, and different stability parameters were evaluated. The study also considered the impact of Bi content on alloy properties through different testing methods, providing valuable insights for applications and further research.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Materials Science, Multidisciplinary
Silviu Polosan, Paul Ganea, Andrei Nitescu
Summary: Phosphate tellurite glasses were successfully synthesized by melt quenching, with a composition of 40%ZnO+40%P2O5+20%TeO2. Compared to glasses synthesized with H3PO4, those containing P2O5 showed greater chemical stability. Magneto-optical measurements revealed a specific transition associated with tellurium colloids, while densities and electrical conductivity increased with melting temperature.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Materials Science, Ceramics
Sunil Kumar, Manoj Kumar, Srihari Velaga, Amarjeet Singh
Summary: The optical properties of a precursor dry Ferritin powder and its iron oxide derivatives were studied using UV-visible spectroscopy. The iron oxide derivatives exhibit significant changes in absorption spectra with annealing temperature, showing a large shift in absorption band edge. Crystallization and thermal destruction of the organic cage are found to be inter-related. The large absorption band edge shift provides a simple approach to tuneable optical properties of iron oxides.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
B. Srinivas, Ashok Bhogi, Pallati Naresh, Abdul Hameed, M. Narasimha Chary, Md Shareefuddin
Summary: This study investigated the preparation and influencing factors of strontium tellurite boro-titanate glasses doped with Cu2+, and studied the glass structure and optical properties through various analysis methods.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Chemistry, Physical
Naziha Boudchicha, Mostepha Iezid, Faycal Goumeidane, Messaoud Legouera, P. Syam Prasad, P. Venkateswara Rao
Summary: In this study, a series of glasses based on the TeO2-BiCl3-RE2O3 system were prepared and characterized for their thermal stability, density, refractive index, and structure. The results demonstrate that these glasses are potential candidates for nonlinear optic fibers and solid laser materials.
Article
Physics, Multidisciplinary
Imen Kebaili, S. Znaidia, Imed Boukhris, H. H. Somaily, H. Algarni, H. H. Hegazy, R. Neffati, A. Dahshan
Summary: This study investigated the physicochemical characteristics of (CdTe)(100-x)(SbSe)(x) compounds using a chemical bond approach, finding that coordination number and number of constraints decreased with an increase in SbSe content, while cohesive energy increased and band gap decreased. The glass-transition temperature was also found to decrease with SbSe expansion.
Article
Materials Science, Multidisciplinary
Xiaolan Du, Chao An, Xuliang Chen, Ying Zhou, Min Zhang, Shuyang Wang, Chunhua Chen, Yonghui Zhou, Xiaoping Yang, Zhaorong Yang
Summary: The structural and electronic properties of CaCdGe, a nodal-line semimetal candidate, were studied under pressure up to 53.3 GPa using synchrotron x-ray diffraction, Raman scattering, electrical transport measurements, and theoretical calculations. Although no clear structural transition was observed, abnormal changes in bond angles and a new Raman peak were found around a certain pressure point (PC). The resistance parameters also showed abrupt changes above PC, suggesting the occurrence of a subtle isostructural transition due to the distortion of CdGe4 tetrahedra.
Article
Materials Science, Multidisciplinary
L. Farahinia, M. Rezvani, M. Rezazadeh
Summary: The study focused on investigating the optical properties and structural changes of oxyfluoride glasses with different amounts of CaF2 (CaO). By altering the ratios, the crystallization temperature, density, and nanocrystal size were affected, ultimately leading to changes in Fermi energy levels and optical band gaps.
MATERIALS RESEARCH BULLETIN
(2021)
Review
Chemistry, Multidisciplinary
T. Velempini, E. Prabakaran, K. Pillay
Summary: Metal oxide semiconductors have shown great potential as photocatalysts for the degradation of organic contaminants in water, attracting significant interest for environmental and pharmaceutical applications. Their ability to efficiently degrade drugs while remaining non-toxic is beneficial for human health and aquatic environments.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Engineering, Electrical & Electronic
K. Chandra Sekhar, B. Kavitha, N. Narsimlu, Vasant Sathe, Miysoon A. Alothman, I. O. Olarinoye, M. S. Al-Buriahi, Md Shareefuddin
Summary: The properties of a series of PFBBF-x glasses with different chemical structures were studied, including density variation, optical bandgap, refractive index, and radiation shielding performance. The results show that with the increase of PbF2 concentration, the density and optical bandgap of the glasses both increased.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Ceramics
Qiuling Chen, Jianhua Fan, Baoji Miao, Sankui Xu
Summary: In this study, glass doped with NiFe2O4 nanocrystals was fabricated and its influence on glass structure, magnetic property, and magneto-optical behavior was investigated. The results showed that the doping of nanocrystals can adjust the properties of glass and achieve higher magnetization and magneto-optical performance. In addition, due to the presence of nanocrystals, the fabricated NFO glass exhibited higher thermal stability, making it promising for the fabrication of photonics devices.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Francesco Di Quarto, Andrea Zaffora, Francesco Di Franco, Monica Santamaria
Summary: A generalized modeling equation for optical band gap values of ternary oxides was proposed based on the differences in electronegativity of oxygen and cationic electronegativity, with novel approaches suggested for different polymorphs of binary oxides and ternary oxides in various crystalline structures. The validity of the modeling equations was tested using experimental data on alumina, gallia, and Ga(1-x)AlxO3 polymorphs, as well as amorphous ternary oxides formed on Al-d-metal alloys. The novel approach allowed for overcoming difficulties in fitting optical band gap dependence and provided rationale for behavior variations in anodic films with different d-metal content.
INORGANIC CHEMISTRY
(2021)
Article
Materials Science, Ceramics
R. Yatskiv, P. Kostka, J. Grym, J. Zavadil
Summary: Two binary tellurite glasses with different concentrations of Er3+ ions were prepared and compared for their potential use in optical temperature sensing at cryogenic temperatures. By optimizing the concentration of erbium ions, luminescence intensity ratio of selected levels can be used for non-contact optical temperature sensing.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
D. Karthigaimuthu, B. Arjun Kumar, T. Elangovan, Gopal Ramalingam, Sujith Kalluri, Sambasivam Sangaraju, Salah Addin Burhan Al Omari
Summary: In this study, an innovative technique was used to produce agglomeration free and distinct metal oxide nanosheets using pigeon excreta as a surfactant and capping agent. The different characterizations and analyses explained the mechanism involved in forming these nanosheets. The metal oxides mediated by pigeon excreta showed improved photovoltaic performance compared to pure metal oxides.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Ceramics
Esra Kavaz, Miray Celikbilek Ersundu, Ali Ercin Ersundu, H. O. Tekin
Summary: In this study, four new phosphate-based glasses were synthesized and characterized to investigate their gamma-ray and neutron attenuation capabilities. Results showed that increasing the molar contribution of Al2O3 to the glasses improved their transparency and resistance to gamma-ray and neutron attenuation. PA10 exhibited the highest attenuation capabilities among the samples studied.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Miray Celikbilek Ersundu, Bahar Kuzu, Ali Ercin Ersundu
Summary: Different phosphate glasses were synthesized and investigated for their physical, thermal, and structural properties, as well as long-term dissolution behavior in different solvent media. The studied glass compositions show potential as controlled release fertilizers for tomato plants, with long-term nutrient release and minimal pH change or toxic compound release.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Materials Science, Ceramics
R. Yatskiv, P. Kostka, J. Grym, J. Zavadil
Summary: Two binary tellurite glasses with different concentrations of Er3+ ions were prepared and compared for their potential use in optical temperature sensing at cryogenic temperatures. By optimizing the concentration of erbium ions, luminescence intensity ratio of selected levels can be used for non-contact optical temperature sensing.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Physics, Applied
Orhan Kibrisli, Erdinc Erol, Ali Ercin Ersundu, Miray Celikbilek Ersundu
Summary: CdSe and CsPbBr3 quantum dots have been successfully synthesized in the same glass host, showing tunability in emission color. High quantum yield values have been obtained under different excitation wavelengths, indicating the potential of the prepared glasses to be used as tunable wavelength converters for photonic and opto-electronic applications.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
Erdinc Erol, Orhan Kibrisli, Miray Celikbilek Ersundu, Ali Ercin Ersundu
Summary: Eu3+ and Tm3+ co-doped CsPbBr3 QD glass nanocomposites have been successfully synthesized to achieve tunable emission colors covering the entire visible spectrum. These nanocomposites exhibit high photoluminescence quantum yield and stability, making them potential light convertor materials for multi-color LED or warm white LED applications.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Erdinc Erol, Naji Vahedigharehchopogh, Utku Ekim, Nazlican Uza, Miray Celikbilek Ersundu, Ali Ercin Ersundu
Summary: In this study, ultra-stable Eu3+/Dy3+ co-doped CsPbBr(3)PQD glass nano-composites are synthesized, which can achieve tunable color emissions from green to red and then to white, suitable for white light-emitting diodes. The material shows reversible photoluminescent performance and stability in water.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Beyza oezlem, Ulai Korkmaz, Erdinc Erol, Melis Oezge Alai, Zeynep Meray, Ruekan Genc Altuerk, Miray Celikbilek Ersundu, Ali Ercin Ersundu
Summary: This study introduces a novel approach to compensate for the blue emission deficiency of Dy3+ in luminescent glasses and achieve resin-free white light-emitting diodes (WLEDs). Two series of Dy3+-doped glasses prepared from tellurite and silicate systems are spin-coated with blue-emitting carbon dots (BCDs). The BCD-coated glasses exhibit white light emissions with improved photoluminescence quantum yield (PLQY) values. These findings highlight the potential of BCD-coated luminescent glasses for solid-state lighting applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Miray Celikbilek Ersundu, Ali Ercin Ersundu, Ondrej Bosak, Marian Kubliha, Petr Kostka
Summary: A series of glasses in the ZnO-MoO3-TeO2 system were synthesized and investigated for their thermal, optical, structural, and electrical properties. Substitution of TeO2 for ZnO and/or MoO3 resulted in structural transformation and decomposition of the tellurite network. The major charge transport mechanism in these glasses is the polaronic process through the tellurite glass network. Molybdenum oxide positively affects the electrical conductivity of the glasses, while Zn2+ ions limit free electron transport. These glasses with wide optical transmittance and relatively high electrical conductivity may find application in optoelectronic devices.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Utku Ekim, Emre Ilter, Emirhan Ozan, Yusuf Temurhan, Miray Celikbilek Ersundu, Ali Ercin Ersundu
Summary: This study develops a novel plant growth LED based on Sm3+ and Tm3+ co-doped luminescent glasses that emit blue and red light, addressing challenges in sustainable and efficient agriculture. The LED exhibits impressive photoluminescence properties and robust performance. Comparative studies show significant improvements in plant growth using the developed LED compared to commercially available LEDs. The results suggest that the developed LED system offers a more efficient and sustainable way of lighting for indoor horticulture.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Ulas Korkmaz, Beyza Ozlem, Erdinc Erol, Melis Ozge Alas, Rukan Genc Alturk, Miray Celikbilek Ersundu, Ali Ercin Ersundu
Summary: In this study, blue-emitting carbon dots (BCDs) were coupled with Eu3+/Tb3+ co-doped luminescent glasses to achieve adjustable light emission for solid-state white light-emitting diodes. The BCD-coated Eu3+/Tb3+ co-doped luminescent glasses exhibited outstanding luminescence performance and stability, indicating great potential as a substitute for traditional solid-state lighting sources.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Naji Vahedigharehchopogh, Erdinc Erol, Orhan Kibrisli, Aziz Genc, Miray Celikbilek Ersundu, Ali Ercin Ersundu
Summary: The embedding of CsPbBr3 perovskite quantum dots in glass provides protection and isolation of toxic elements. This study demonstrates the potential of recycling CsPbBr3 PQD GNCs and their high performance in LED applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
