Article
Chemistry, Physical
Christopher L. Rom, Rebecca W. Smaha, Celeste L. Melamed, Rekha R. . Schnepf, Karen N. Heinselman, John S. Mangum, Sang-Jun Lee, Stephan Lany, Laura T. Schelhas, Ann L. Greenaway, James R. . Neilson, Sage R. Bauers, Adele C. Tamboli, Jennifer S. Andrew
Summary: We predict and realize a new magnetic and semiconducting material, MnSnN2, through combinatorial sputtering of thin films. MnSnN2 exhibits a wide composition tolerance, with a single-phase region of 20% < Mn/(Mn + Sn) < 65%. The material shows a wurtzite-like crystal structure with cation disorder and has an optical absorption onset of 1 eV, consistent with the computationally predicted 1.2 eV bandgap. Resistivity and Hall effect measurements confirm the semiconducting nature of MnSnN2 and reveal complex charge transport mechanisms. Magnetic susceptibility measurements show a low-temperature magnetic ordering transition and strong antiferromagnetic correlations in MnSnN2, contrasting with previous studies on cation-ordered MnSiN2 and MnGeN2.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Y. Jiraskova, J. Bursik, O. Zivotsky, J. Lunacek, P. Alexa, R. Uhlar, J. Ederer, P. Janos
Summary: Magnetite and magnetite/ceria composites were prepared using chemical methods and underwent calcination treatment. The ceria content and calcination temperature were found to greatly affect the degradation ability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Organic
Andrii Fedyk, Evgeniy Y. Slobodyanyuk, Olha Stotska, Bohdan V. Vashchenko, Dmitriy M. Volochnyuk, Dmitriy A. Sibgatulin, Andrey A. Tolmachev, Oleksandr O. Grygorenko
Summary: The scalable synthesis of saturated heterocyclic dimethyl phosphine oxides was achieved through key steps involving reactions of HP(O)Me-2, palladium-catalyzed reactions, and base-mediated nucleophilic substitutions. Introduction of the P(O)Me-2 group significantly affected the compound's basicity, hydrophilicity, and aqueous solubility. This method shows potential for generating lead-like three-dimensional compound libraries as confirmed using the LLAMA tool.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Zein K. Heiba, Mohamed Bakr Mohamed, Ah. Abd Ellatief, A. El-Denglawey, Ali Badawi
Summary: MgFe2O4 and MgFe2O4/(1-x)MnO-xCdO samples were synthesized and their structural and optical properties were investigated. The incorporation of Mn and Cd ions led to changes in lattice parameters and particle size, as well as variations in the optical band gaps. The samples showed weak ferrimagnetic behavior with an increase in saturation magnetization and a decrease in coercivity.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Materials Science, Ceramics
Chun Luo, Jiayi Zheng, Miao Jiang, Lihong Gao, Zhuang Ma, Alexandr A. Rogachev
Summary: In this study, the phase transition temperature of Ba2SmTaO6 was confirmed to be 533 K, and the preparation process of different phases of Ba2-xSrxSmTaO6 was discovered. The reflectance of different phase structures of Ba2-xSrxSmTaO6 was characterized, revealing its potential application in optical sensors.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Marian Kubisztal
Summary: This paper presents the synthesis and analysis of critical behavior of (Ni,Zn,Fe,Cu,Mn)(3)O-4 spinel-oxide ceramics near magnetic phase transition. A new approach of analyzing Arrott-Noakes diagrams is proposed, which considers the quality of the straightness of isotherms and the requirement of the critical straight line passing through the origin. The obtained results indicate mainly isotropic, long-range exchange interactions in the studied ceramic oxide.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Muhammad Amir Rafiq, Athar Javed, Muhammad Nasir Rasul, Muhammad Nadeem, Faisal Iqbal, Altaf Hussain
Summary: Various spinel oxides including GeGa2O4, CoGa2O4, GeCo2O4, and CoCo2O4 have been studied for their structural, magnetic, optical, and electronic properties using density functional theory calculations. Among these oxides, CoGa2O4, GeCo2O4, and CoCo2O4 show 100% spin-polarization and stable cubic structure in the ferromagnetic phase, indicating potential integration in magnetic-semiconducting devices. The results also suggest that Co occupancy in the GeGa2O4 lattice has significant effects on its electronic, magnetic, and optical behaviors.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Physical
S. K. Satpathy, U. K. Panigrahi, S. K. Panda, R. Biswal, W. Luyten, P. Mallick
Summary: Nanoparticles of Zn1-xLaxO (x = 0, 0.01, 0.03, and 0.05) were successfully synthesized using a cost-effective chemical method. The influence of La doping on the microstructural, optical, antimicrobial, and magnetic properties of the ZnO nanoparticles was investigated. La doping significantly enhanced the magnetization of ZnO nanorods and had an impact on their antibacterial activity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Inorganic & Nuclear
Nan Zhang, Qian-Ting Xu, Zhi-Hui Shi, Mei Yang, Sheng-Ping Guo
Summary: This study focuses on a new pentanary oxysulfide material and reveals its moderate nonlinear-optical response and high laser-induced damage threshold. The results suggest that transition-metal oxysulfides can be considered as potential infrared NLO materials.
INORGANIC CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Pol Salles, Pamela Machado, Pengmei Yu, Mariona Coll
Summary: Oxides possess unique physical and chemical properties that drive rapid advances in materials chemistry and find widespread applications in various devices. Chemical deposition methods allow for the development of complex oxide thin films and nanostructures through the selection of suitable chemical precursors and the design of precise and cost-effective thermal treatment.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Kaushik Kundu, Prabir Dutta, Paribesh Acharyya, Kanishka Biswas
Summary: The Pb-free RP-type layered Rb2CuCl2Br2, synthesized by liquid-assisted mechanochemistry, exhibits unique optical and magnetic properties with good thermal and environmental stability. It displays excitonic absorption characteristic of layered perovskites with high exciton binding energy, as well as excellent performance in photoluminescence, charge carrier lifetimes, and magnetic properties such as paramagnetic to antiferromagnetic transition at low temperatures.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
Shahid Mehmood, Zahid Ali, Iftikhar Ahmad
Summary: The structural, electronic, elastic, and magnetic properties of CaCu3Mn4-xIrxO12 (x = 0, 2, and 4) and the optical properties of CaCu3Mn4O12 perovskites were investigated using density functional theory (DFT). The results showed that CaCu3Mn2Ir2O12 is stable in Pn-3 space group, while CaCu3Mn4O12 and CaCu3Ir4O12 perovskites are stable in Im-3 space group. Substituting Ir with Mn not only changes the compounds from semiconductor to metallic, but also transforms the host compound from ferrimagnetic to anti-ferromagnetic via a spin glass state. The elastic properties demonstrate the mechanical stability, anisotropic nature, and ductility of these compounds, while the optical properties indicate their potential use in infrared optical devices.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Muhammad Amir Rafiq, Altaf Hussain, Athar Javed, Gul Naz, Jalil-ur Rehman, Muhammad Sohail Akbar
Summary: This study investigated the properties of GeGa2O4, FeGa2O4, GeFe2O4, and FeFe2O4 spinel oxides using ab-initio calculations. The results showed that GeGa2O4 had remarkable physical properties due to Fe occupancy. The Fe-containing oxides were found to be stable in the magnetic phase, while the GeGa2O4 spinel oxide was nonmagnetic. The oxides exhibited different electronic, thermal, magnetic, and optical properties, making them suitable for various applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Physics, Multidisciplinary
Junaid Munir, M. Khuram Iftikhar, M. Imran Jamil, Moeen Ud Din, Thamraa Alshahrani, H. Elsaeedy, Quratul Ain
Summary: Spin-polarized calculations were performed on AcXO3 (X = Cr, Fe) perovskite oxides to investigate their mechanical, electronic, phonon, optical, and magnetic properties. The modified Becke Johnson (mBJ) approximation and the WIEN2k code were utilized. The negative formation energy and positive phonon frequencies indicate the stability of these perovskite oxides. Elastic parameters confirmed their mechanical stability. Both compounds showed semiconductor characteristics with an indirect bandgap in both spin channels. The magnetic moments revealed the significant contribution of Fe and Cr atoms to the overall magnetism. The optical response showed maximum absorption in the ultraviolet region. The overall analysis suggests that these oxide perovskites are suitable for spintronic and optoelectronic applications.
Article
Optics
V. Ganesh
Summary: The study investigated the effect of Bi doping on NiO thin films, showing that Bi doping leads to a decrease in grain size and surface roughness, as well as an increase in optical band gap. The films exhibit high transparency and nonlinear optical susceptibility values fall within a certain range.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
A. Aly, M. Ghali, A. Osman, M. K. El Nimr
Summary: This study reports the discovery of naturally occurring luminescent graphene quantum dots (GQDs) in coconut water for the first time. The GQDs were identified through various measurements and were found to have dual sizes and emit different wavelengths of light. The GQDs were also utilized as an efficient optical sensor for aniline liquid detection.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Zehua Chen, Wencheng Ma, Qinglu Fan, Yanhua Liu, Min Sun, Shuo Wang
Summary: The nanoscale e-VOPO4 materials were successfully prepared by hydrothermal synthesis and calcination, showing high purity and suitable particle size. It exhibited satisfactory electrochemical performance as cathode material for sodium ion batteries, making it a potential candidate for high energy storage systems.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Tao Liu, Yahui Liu, Le Ling, Zhongxi Sheng, Zao Yi, Zigang Zhou, Yongjia Yang, Bin Tang, Qingdong Zeng, Tangyou Sun
Summary: In this paper, a terahertz (THz) micronano device that can switch between bimodal absorption and plasmon-induced transparency (PIT) is proposed. The device consists of layers of graphene, silica, and vanadium dioxide, and has a simple structure, easy tuning, and wide-angle absorption. The device achieves perfect absorption at specific frequencies and is highly sensitive to environmental refractive index. It also has the functions of a three-frequency asynchronous optical switch and slow light effect.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Xiaobo Luo, Songhan Hu, Qiudong Duan, Dacheng Zhou, Jialin Chen, Yugeng Wen, Jianbei Qiu
Summary: The exploration of solar light absorption by a material is important in photonics and optoelectronics. This study reveals the potential of Ba3-xGa2O6:xBi3+ as a promising candidate for various photonic and optoelectronic applications, and demonstrates the use of the material in double-sided laser printing for three-dimensional optical imaging.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Hemin Wang, Yanling Hao, Lele Xiang, Xiaosi Qi, Lei Wang, Junfei Ding, Yunpeng Qu, Jing Xu, Wei Zhong
Summary: This study designed Fe3O4-FeCO3/MWCNTs/RGO MCNCs composites and fabricated large-scale samples using hydrothermal and freeze-drying methods. The microstructural investigation showed that these materials had a mixed-dimensional structure, which improved impedance matching features, polarization, and conduction loss abilities, leading to significantly enhanced electromagnetic absorption properties.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Zhenshan Yu, Hao Chen, Xuequan Chen, Yu-Sheng Lin
Summary: This study presents a silicon dielectric metamaterial (SDM) composed of two outer symmetric semi-circular rings and two inner symmetric split-ring resonators (SRRs). The electromagnetic responses of the SDM device in different modes were studied through numerical simulations and experiments. Increasing the structure height of the SDM device resulted in red-shifted resonances and stronger intensities. This study provides a new design strategy for the development of frequency filtering, polarization switching, and resonance modulation characteristics in THz-wave applications.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Yiming Qi, Na Zhang, Meng Zong, Yangxianzi Liu, Weixing Chen
Summary: This study prepares dielectric/carbon fiber based nanocomposites wave-absorbing materials using liquid diffusion and high temperature carbonization strategies. By tuning the element type, drying mode, and filling amount, the electromagnetic parameters and absorbing properties can be adjusted. The best synthesized sample shows excellent absorbing performance, making it suitable for a wide range of electromagnetic wave absorption applications.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Carlos D. Gonzales-Lorenzo, T. K. Gundu Rao, Alberto A. Ccollque-Quispe, Jorge Ayala-Arenas, Monise B. Gomes, Betzabel N. Silva-Carrera, Roseli F. Gennari, Valeria S. Pachas, F. Monzon-Macedo, H. Loro, Jose F. D. Chubaci, Nilo F. Cano, Rene R. Rocca, Shigueo Watanabe
Summary: In this study, CaSiO3 doped with different ppm of Eu was synthesized using the devitrification method. Various physical properties were analyzed, revealing that the intensity and temperature of the high-temperature TL peak increased with higher dopant amounts. Fluorescence measurements indicated the presence of Eu2+ and Eu3+ ions in the samples. EPR spectra confirmed the existence of two defect centers.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Yanning Qu, Xinyang Li, Mei Cui, Renliang Huang, Wanquan Ma, Yunting Wang, Rongxin Su, Wei Qi
Summary: In this study, a new molybdenum disulfide/N,S-doped carbon quantum dots (MoS2/N,S-CQDs) heterojunction with enhanced light absorption and electrons transfer di-functional properties was constructed via a facile one-pot hydrothermal method. The heterojunction showed remarkable efficiencies in degrading methylene blue (MB) and malachite green (MG) in an actual water system under simulated sunlight irradiation. The facile synthetic technique and effective multifunctional properties of the composite have the potential for further research and industrial applications.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Jiayi Wang, Penggang Ren, Xueyan Zhao, Zhengyan Chen, Yanling Jin, Zengping Zhang
Summary: In this study, a novel homojunction photocatalyst was developed by combining defective g-C3N4 and flaked g-C3N4, which showed excellent degradation performance and cycling stability, and exhibited practicality in several simulation experiments.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Jing Yan, Xiaoxiao Zhao, Weixing Chen, Panbo Liu
Summary: This research presents a self-templated strategy to prepare a spherical superstructure of carbon nanorods through material modification and pyrolysis. The resulting material exhibits a large controllable radius of curvature and shows excellent microwave absorbing properties due to its high specific surface area and mesoporous structure.
MATERIALS RESEARCH BULLETIN
(2024)
Review
Materials Science, Multidisciplinary
Qinglin Zeng, Zepeng Lv, Shaolong Li, Bin Yang, Jilin He, Jianxun Song
Summary: Liquid metal batteries possess stable safety performance, high rate performance, and thermal stability. The electrolyte, an important component of the battery, plays a significant role in achieving these remarkable performance characteristics. This paper reviews the important research progress of liquid metal batteries electrolyte and discusses the influence of different electrolyte types on energy efficiency. It also highlights the limitations and challenges of existing electrolytes and proposes key development directions for liquid metal electrolytes.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Song Wu, Junli Wang, Xuanbing Wang, Di Jiang, Jinlong Wei, Xiaoning Tong, Zhenwei Liu, Qingxiang Kong, Naixuan Zong, Ruidong Xu, Linjing Yang
Summary: In this study, a composite electrode composed of Ti/TiH2/beta-PbO2_Mn3O4@C was fabricated and investigated for zinc electrowinning. The composite electrode exhibited low overpotential, Tafel slope, icorr, and high voltage stability, outperforming most reported Ti-based PbO2 electrode materials. The excellent catalytic activity can be attributed to the low resistance and porous interlayer of TiH2 nanosheets, as well as the addition of Mn3O4@C micro-flakes to the active layer.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
E. Tsoutsoumanos, T. Karakasidis, N. Laskaris, P. G. Konstantinidis, G. S. Polymeris, G. Kitis
Summary: This study investigates the correlation between nanocrystal dimensions and thermoluminescence signal magnitude through simulations conducted in Python. Two mathematical models, OTOR and IMTS, were used to derive theoretical luminescence signals. The obtained results were compared with experimental data and a thorough comparative discussion was conducted.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Vishnu Aggarwal, Sudhanshu Gautam, Aditya Yadav, Rahul Kumar, Bipul Kumar Pradhan, Brajesh S. Yadav, Govind Gupta, Senthil Kumar Muthusamy, Sumeet Walia, Sunil Singh Kushvaha
Summary: Recently, there has been a great demand for highly responsive photodetectors that can detect a wide range of wavelengths. Researchers have successfully fabricated a broadband metal-semiconductor-metal photodetector by integrating sputtered Bi2Se3 with laser molecular beam epitaxy grown GaN film. This photodetector shows high responsivity in both the ultraviolet and near-infrared regions.
MATERIALS RESEARCH BULLETIN
(2024)