Article
Chemistry, Multidisciplinary
Qi Chen, Kailai Yang, Bo Shi, Xiaoyan Yi, Junxi Wang, Jinmin Li, Zhiqiang Liu
Summary: Beyond traditional heteroepitaxy, 2D-materials-assisted epitaxy opens opportunities to revolutionize future material integration methods. However, basic principles in 2D-material-assisted nitrides' epitaxy remain unclear, which impedes understanding the essence, thus hindering its progress. Here, the crystallographic information of nitrides/2D material interface is theoretically established, which is further confirmed experimentally. It is found that the atomic interaction at the nitrides/2D material interface is related to the nature of underlying substrates. For single-crystalline substrates, the heterointerface behaves like a covalent one and the epilayer inherits the substrate's lattice. Meanwhile, for amorphous substrates, the heterointerface tends to be a van der Waals one and strongly relies on the properties of 2D materials. Therefore, modulated by graphene, the nitrides' epilayer is polycrystalline. In contrast, single-crystalline GaN films are successfully achieved on WS2. These results provide a suitable growth-front construction strategy for high-quality 2D-material-assisted nitrides' epitaxy. It also opens a pathway toward various semiconductors heterointegration.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
A. Thayer, I Hlova, Y. Mudryk, X. Liu, V. K. Pecharsky
Summary: Single-phase LaFe13-x-yMxSiyN3 compounds were synthesized by ammonia flow, exhibiting increased lattice expansion and magnetic ordering transitions as a result of nitrogenation. The nitrides show weak and broad magnetocaloric effects, and stability below 750 K but decompose above this temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Yimin Guo, Xinchao Wang, Xuan Li, Tao Zhang
Summary: To avoid annealing embrittlement and annealing-induced resistivity drop, the Fe85P11C2B2 amorphous alloy was treated by pulse current (PC) and rolling. The PC processing enhanced atom mobility, resulting in the formation of alpha-Fe nanocrystals and release of internal stress, increasing saturation magnetization (Ms) and reducing coercivity (Hc). Rolling after PC treatment improved sample resistivity (ρ). The synergy of PC + rolling treatment increased Ms from 1.54 T to 1.64 T, enhanced resistivity from 177.1 μΩ·cm to 192.0 μΩ·cm, and decreased Hc from 6.4 A/m to 5.6 A/m. The treated sample maintained good bending ductility.
Article
Materials Science, Ceramics
Lvkang Shen, Guohua Lan, Lu Lu, Yanzhu Dai, Chunrui Ma, Cuimei Cao, Changjun Jiang, Caiyin You, Xiaoli Lu, Ming Liu
Summary: A series of high quality LiFe5O8 (LFO) arrays with excellent epitaxial quality and nano-island or nano-pillar morphology are obtained by chemically etching the MgO phase in the self-assembly (LFO)1:(MgO)x nanocomposite films. The LFO nanopillar arrays exhibit higher saturation magnetization, lower nonzero coercivity and remanence compared to the LFO planar film. The morphology of the nanostructures effectively modulates the ferromagnetic resonance spectra of the LFO nanopillar arrays, which can be explained by the calculated demagnetization field.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Multidisciplinary
Fei Wu, Lingyun Wan, Qingyan Li, Qiuyu Zhang, Baoliang Zhang
Summary: In recent years, metal-organic framework (MOF)-derived absorbers have gained significant attention in the field of microwave absorption. This study successfully constructs binary and ternary assemblies using unique anisotropic epitaxial growth strategies. The resulting absorbers are converted into magnetic porous carbon-based materials with excellent electromagnetic loss capabilities. The optimized absorber achieves improved microwave absorbing properties compared to the initial assembly.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
C. de Melo, C. Guillemard, A. M. Friedel, V Palin, J. C. Rojas-Sanchez, S. Petit-Watelot, S. Andrieu
Summary: The study focused on the transport properties of Co2MnSi thin films, revealing the unique electronic band structure and temperature-dependent scattering processes, which provide important insights for utilizing this material in magnetoelectric devices.
APPLIED MATERIALS TODAY
(2021)
Article
Optics
A. K. M. Rakib, Rummanur Rahad, Md. Omar Faruque, Rakibul Hasan Sagor
Summary: This article introduces a new comb-shaped plasmonic refractive index sensor with a ZrN-Insulator-ZrN configuration. The sensor utilizes Zirconium Nitride (ZrN), a refractory material that offers advantages over traditional metals like silver and gold, due to its compatibility with Complementary Metal Oxide Semiconductor (CMOS) and tunable optical properties. The sensor achieved a maximum sensitivity, figure of merit (FOM), and sensing resolution of 1445.46 nm/RIU, 140.96, and 6.91 x 10-7 RIU-1, respectively. The integration of ZrN provides the sensor with advantages such as higher hardness, thermal stability, corrosion and abrasion resistance, and lower electrical resistivity, which are lacking in traditional plasmonic metals. This suggested model surpasses the typical Metal-Insulator-Metal (MIM) arrangement and has potential for developing efficient and durable nanometric sensing devices.
Article
Crystallography
Stefan A. A. Pitsch, R. Radhakrishnan Sumathi
Summary: Epitaxial graphene layers of cm(2) sizes were grown on silicon carbide (SiC) substrates by high-temperature sublimation. The study investigated the impact of the crystallographic SiC-polar faces on the growth mechanism and properties of graphene layers. AFM studies revealed structural differences that caused disparities in the electrical conductivity of the grown layers. The formation of graphene occurred differently on the Si-polar and C-polar faces, leading to direction-dependent anisotropic behavior in electrical conductivity.
Article
Engineering, Electrical & Electronic
Yuki K. Wakabayashi, Shingo Kaneta-Takada, Yoshiharu Krockenberger, Yoshitaka Taniyasu, Hideki Yamamoto
Summary: Epitaxial strain in SrRuO3 films directly influences their physical properties, offering an opportunity to tune the functionalities for electronic and spintronic devices. This study demonstrates wide-range control of electrical and magnetic properties in high-quality SrRuO3 films through epitaxial strain. The results provide guidelines for designing SrRuO3-based heterostructures for device applications.
ACS APPLIED ELECTRONIC MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Seokho Moon, Sung-Jae Chang, Youngjae Kim, Odongo Francis Ngome Okello, Jiye Kim, Jaewon Kim, Hyun-Wook Jung, Ho-Kyun Ahn, Dong-Seok Kim, Si-Young Choi, JaeDong Lee, Jong-Won Lim, Jong Kyu Kim
Summary: This study successfully demonstrated the realization of wafer-scale h-BN van der Waals heterostructure on a 2 in. AlGaN/GaN high-electron mobility transistor (HEMT) wafer using metal-organic chemical vapor deposition, showing promising performance of the fabricated HEMT with h-BN. Advanced microscopic and spectroscopic analyses along with theoretical calculations revealed an atomically sharp heterointerface with very weak van der Waals interaction between the approximately 2.5 nm-thick h-BN and AlGaN layers. These findings pave the way for practical implementation of 2D materials integrated with conventional microelectronic devices, leading towards the realization of future all-2D electronics.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Electrical & Electronic
Nand Kumar, Raveena Gupta, Ripudaman Kaur, Daichi Oka, Sonali Kakkar, Sanjeev Kumar, Surendra Singh, Tomoteru Fukumura, Chandan Bera, Suvankar Chakraverty
Summary: This study demonstrates that a small off-stoichiometry in the B-site of Sr2FeMoO6 can lead to significant changes in spin polarization, resistivity, and magnetoresistance. Theoretical calculations suggest a strong correlation between electronic structure, electronic polarization, and B-site non-stoichiometry.
ACS APPLIED ELECTRONIC MATERIALS
(2021)
Article
Chemistry, Physical
Adrian Gudwanski, Ewa Malicka, Tadeusz Gron, Malgorzata Karolus, Monika Oboz, Bogdan Sawicki, Andrzej Nowok, Sebastian Pawlus, Henryk Duda
Summary: The results of magnetic and electrical measurements on ZnCr2S4 nanoparticles synthesized by mechanical alloying method revealed nearly ideal paramagnetic state with weak ferromagnetic short-range interactions, as well as n-type semiconducting behavior. Broadband dielectric spectroscopy measurements showed relaxation processes only in the intrinsic region of the electrical conductivity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Physics, Applied
Haoming Wei, Xin Chen, Yangqiang Wu, Bingqiang Cao
Summary: In this study, epitaxial LaMnO3/LaScO3 superlattices were grown and their physical properties were investigated. The introduction of LaScO3 suppressed distortion in the superlattices, and the electrical and magnetic properties were influenced by the proportions of LaMnO3 and LaScO3 layers.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Anupam Giri, Chandan De, Manish Kumar, Monalisa Pal, Hyun Hwi Lee, Jun Sung Kim, Sang-Wook Cheong, Unyong Jeong
Summary: This study presents a rapid and scalable method for synthesizing ferromagnetic thin films of ternary metal chalcogenides, with revealed magnetic anisotropy directions. It not only provides an opportunity for device fabrication without transfer for controlling charge and spin degrees of freedom in 2D ferromagnetic semiconductors, but also overcomes the challenge of synthesizing large-area 2D ternary metal chalcogenide thin films.
ADVANCED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Khushboo Kumari, Sandeep Vura, Srinivasan Raghavan, Sushobhan Avasthi
Summary: The pulsed Nd:YAG laser was used to crystallize amorphous germanium thin-films, resulting in epitaxial Ge, with film thickness and laser fluence playing a crucial role. The epitaxial Ge preparation method is fast, cost-effective, and has a low thermal budget, making it suitable for large area applications.
Article
Physics, Condensed Matter
Xianghui Duan, Baozeng Zhou, Xiaocha Wang, Wenbo Mi
Summary: The electronic and magnetic properties of 2D Zr2CO2/H-FeCl2 heterostructures were investigated using first principles calculations. It was found that these heterostructures exhibit magnetic semiconductor behavior and their electronic structure and magnetic anisotropy can be controlled by biaxial strain and external electric field. The band gap and potential difference of the heterostructures can be modified by in-plane biaxial strain, with a compressive strain of -8% leading to the heterostructure becoming metallic. All Zr2CO2/H-FeCl2 heterostructures have in-plane magnetic anisotropy and show semiconductor behavior in an electric field range of -0.5 V angstrom(-1) to +0.5 V angstrom(-1). Additionally, the heterostructure exhibits in-plane magnetic anisotropy under negative electric field and perpendicular magnetic anisotropy under positive electric field. These findings suggest that Zr2CO2/H-FeCl2 heterostructures have potential applications in multifunctional nanoelectronic devices.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2023)
Article
Nanoscience & Nanotechnology
Zuolun Chen, Xiang Liu, Jiawei Jiang, Rui Li, Yue Wang, Liu Guo, Yingdan Xu, Wenbo Mi
Summary: The integration of ferromagnetic/antiferromagnetic bilayers with exchange bias effect on flexible substrates is crucial for flexible spintronics. Here, the epitaxial Co/MnN bilayers are deposited on mica by facing-target sputtering. A large in-plane exchange bias field (HEB) of 1800 Oe with a coercive field (HC) of 2750 Oe appears in the Co (3.8 nm)/MnN (15.0 nm) bilayer at 5 K after field cooling from 300 to 5 K. Effective interfacial exchange energy Jeff of the Co/MnN bilayer is 0.83 erg/cm2. The strain-induced maximum increase of HEB and HC reaches 18% and 21%, respectively, in the Co(3.8 nm)/MnN(15.0 nm) bilayer. Strain-modulated HEB is attributed to the change of interfacial exchange coupling between Co and MnN layers. HEB is inversely proportional to Co thickness but independent of MnN thickness. The change of HEB is less than 5% after 100 bending cycles, indicating mechanical durability.。
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Zhenxian Zhao, Xianghui Duan, Xiaotian Fang, Xiaocha Wang, Wenbo Mi
Summary: In this study, the electronic structure and magnetic anisotropy of a series of two-dimensional transition metal nitride monolayers (MSi2N4) were systematically analyzed. It was found that ScSi2N4 and VSi2N4 monolayers exhibit half-metallic properties, while TiSi2N4 and CrSi2N4 monolayers are semiconductors. The remaining monolayers are metallic. By applying strain, the metallic monolayers can be transformed into half-metallic or semiconductor ones. Two-dimensional materials with half-metallic abundance and perpendicular magnetic anisotropy have potential applications in spintronic devices.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Ze-Yu Zhang, Jia-Wei Jiang, Xiao-Hui Shi, Xiang Liu, Xia Chen, Zhi-Peng Hou, Wen-Bo Mi
Summary: The spin-dependent transport properties of Pt/Mn4N bilayers on MgO (001) substrates have been systematically investigated. The results show that the Hall resistivity of the bilayers is strongly dependent on temperature, applied current intensity, Mn4N and Pt layer thicknesses. The temperature-dependent sign reversal of the anomalous Hall resistivity is dominated by the competition between the magnetic proximity and spin Hall effects. Furthermore, the magnitude of the anomalous Hall resistivity can be manipulated by applied current density.
Review
Chemistry, Multidisciplinary
Jiawei Jiang, Wenbo Mi
Summary: This review provides a comprehensive overview of the emergent physical properties of magnetic Janus monolayers and their van der Waals heterostructures from a theoretical point of view. The review introduces theoretical methodologies, including state-of-the-art methods and challenges and limitations in validations for the descriptions of magnetic ground states and thermodynamic properties in magnetic materials. The inherent polarization field induced physical phenomena of magnetic Janus monolayers and the tunable electronic and magnetic properties of their heterostructures are discussed.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Physical
Yingdan Xu, Yin Xiao, Yong Wang, Wenbo Mi
Summary: Chiral-induced spin selectivity effect provides a new strategy for manipulating electron spin, which can be used to control spin-selective electronic transport and photocurrent response. Chiral magnetic tunnel junctions have the ability to switch spin channels and photocurrent directions.
CHEMISTRY OF MATERIALS
(2023)
Article
Physics, Applied
Dongyao Zhang, Jiawei Jiang, Rui Li, Wenbo Mi
Summary: Polycrystalline iron tin nitride films were deposited on different substrates with various nitrogen flow rates using the facing-target reactive sputtering method. Epitaxial Fe3SnN(111) films were successfully fabricated on Al2O3(0001) and MgO(111) with a nitrogen flow rate of two standard cubic centimeter per minute. The structures, electronic transport, and magnetic properties were systematically investigated. The temperature-induced transition of charge carriers from electron to hole was observed and the skew scattering mechanism was found to dominate the anomalous Hall effect in the Fe3SnN(111) epitaxial film.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Engineering, Electrical & Electronic
Yue Wang, Jiawei Jiang, Ji-Jun Zou, Wenbo Mi
Summary: This study successfully fabricated 200 μm single-crystal 2D MOFs and studied their electronic, magnetic, and catalytic properties using first-principles calculations. The results showed that different transition metal 2D MOFs have different properties, providing candidates for the study of spintronics and electrocatalysts.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ying Cui, Jiawei Jiang, Wenbo Mi, Yin Xiao
Summary: We report the fabrication of a five-layer chiral perovskite nanowire and its regulation of polarity preference using chiral phenylethylamine or 2-butylamine as chiral ligands. The chiroptical response of the nanowire is governed by the localized surface chiral potential related to the ligand-induced helical distortion of [PbX6]4- octahedra on the top and bottom layers. By varying the ligand's type or concentration, an optical enantiomeric pair is created, unlocking high-n chiral perovskite nanostructures and providing an additional degree of freedom beyond configurational chirality in regulating polarity.
CELL REPORTS PHYSICAL SCIENCE
(2023)
Article
Chemistry, Physical
Xueping Fan, Jiawei Jiang, Rui Li, Liu Guo, Wenbo Mi
Summary: The band alignment, intrinsic ferromagnetism, Dzyaloshinskii-Moriya interaction, magnetic anisotropy, and critical temperature (TC) of a GdI2/GeC van der Waals (vdW) heterostructure were systematically investigated. The heterostructure exhibited Type-I band alignment, large in-plane magnetic anisotropy energy (MAE) of -0.912 mJ/m2, and a high critical temperature of 466 K. Under biaxial strains, the heterostructure transformed from a semiconductor into a metal, with the easy magnetization axis remaining in-plane and TC increasing. These findings suggest potential applications of the GdI2/GeC vdW heterostructure in spintronic devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Multidisciplinary Sciences
Minhua Ai, Lun Pan, Chengxiang Shi, Zhen-Feng Huang, Xiangwen Zhang, Wenbo Mi, Ji-Jun Zou
Summary: The study finds that chiral structure in zinc oxide can induce spin selectivity effect to promote photocatalytic performance. By synthesizing zinc oxide crystals using chiral methionine molecules, hierarchical chirality is demonstrated, and it is shown that the chiral structure acts as spin filters and induces spin polarization in photoinduced carriers. The chiral zinc oxide exhibits significantly higher activities in photocatalytic O-2 production and contaminant photodegradation compared with achiral zinc oxide.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Kai Zhang, Xiaocha Wang, Wenbo Mi
Summary: The ferromagnetic GdClBr monolayer in GdClBr/CuBiP2Se6 transforms from a semiconductor to a half-metal during the reversal of the ferroelectric polarization of CuBiP2Se6. The GdClBr/CuBiP2Se6 heterojunction exhibits perpendicular magnetic anisotropy regardless of the direction of ferroelectric polarization, and shows potential applications in spintronic devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Review
Chemistry, Multidisciplinary
Yingdan Xu, Wenbo Mi
Summary: This article summarizes the important discoveries and recent experiments performed during the development of the chiral-induced spin selectivity (CISS) effect, which provides a new strategy for manipulating electron's spin and understanding spin selective processes in organisms. Furthermore, it discusses the mechanisms, theoretical calculations, experimental techniques, and biological significance of the CISS effect.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Physical
Liu Guo, Rui Li, Jiawei Jiang, Xueping Fan, Ji-Jun Zou, Wenbo Mi
Summary: CO2 reduction reactions (CO2RRs) are a promising strategy for effective capture and conversion of CO2. In this study, the electronic structure of TM-Mo2C catalysts and their performance in CO2 reduction were investigated. TM doping enhanced CO2 capture and activation abilities, while also promoting the adsorption of CHOH/CH2O. The results provide insights into the relationship between spin up/down anti-bonding states filling and the reaction rate of CHO conversion into CH2O.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Bo Chen, Xiaocha Wang, Wenbo Mi
Summary: This study investigates the electronic and magnetic properties of 2D Janus Ni-trihalide monolayers using first-principle calculations. The research shows that these monolayers have two distinct magnetic ground states and two different orbital splits. By applying biaxial strain, the semimetal state of the monolayers can be tuned to a semiconductor or metallic state, and the easy magnetization direction can also be changed. The design of the Janus Ni2X3Y3 structure expands the range of 2D magnetic materials and contributes to the advancement of spintronics and its applications.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
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)
