Article
Chemistry, Physical
M. S. Lomakin, O. V. Proskurina, A. A. Sergeev, I. V. Buryanenko, V. G. Semenov, S. S. Voznesenskiy, V. V. Gusarov
Summary: This study investigated the influence of hydrothermal synthesis conditions on nanocrystalline particles with a phase of variable composition. The BFWO phase structural parameters were found to be affected by the chemical composition, while the average crystallite size and aggregate size changed with different hydrothermal synthesis conditions. Furthermore, the Eg value was shown to decrease with an enrichment of BFWO composition in Bi and Fe, and a decrease in the volume fraction of crystallites in the surface layer of aggregates.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Geng Zhao, Min Xu, Yilun Yang, Chengchun Zhao, Yin Hang
Summary: A 1.5 at.% Nd3+ and 0.5 at.% Ho3+ co-doped CeF3 single crystal was successfully grown and its absorption and fluorescence characteristics were evaluated. The spectroscopic properties of the crystal were investigated based on the Judd-Ofelt theory, and the fluorescence lifetimes of Nd3+ and Ho3+ were determined. Additionally, the magneto-optical performance of the crystal was studied for the first time, and the Verdet constants at different wavelengths were measured, showing its potential applications in lasers and magneto-optical devices.
Article
Materials Science, Multidisciplinary
Pengfei Guan, Ming Zheng
Summary: Tuning the photoluminescence properties of rare earth doped ferroelectric thin films is important for developing novel optical-electro devices. In this study, the effects of crystal orientation on the photoluminescence properties of (001), (011), and (111)-oriented Pr3+ doped Ba0.85Ca0.15Ti0.90Zr0.10O3 (BCTZ:Pr3+) thin films were investigated. The results show that the emission intensity is stronger in (001) and (111)-oriented films compared to (011)-oriented films, suggesting a dependence of photoluminescence on crystal orientation.
Article
Chemistry, Physical
Galina M. Kuz'micheva, Levko A. Arbanas, Vera L. Manomenova, Irina A. Kaurova, Victor B. Rybakov, Evgeny Khramov, Nadezhda A. Lobanova, Sergey Yu. Stefanovich, Andrey Dorokhov
Summary: Nanocomposites based on nickel sulfate hexahydrate and titanium oxide nanoparticles have been synthesized for the first time, revealing unique structural and property characteristics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Physics, Condensed Matter
Hong-Ji Wang, Jun-Tao Yang, Chang-Ju Xu, Hai-Ming Huang, Qing Min, Yong-Chen Xiong, Shi-Jun Luo
Summary: The electronic structures and optical properties of different configurations of two-dimensional ZnO monolayers were systematically investigated. Three types of 2D ZnO monolayers, namely Plan-ZnO, Dlhc-ZnO, and Tile-ZnO, showed mechanical and dynamical stability, with Dlhc-ZnO being the most energetically stable configuration. The monolayers exhibited semiconductor behavior, with Plan-ZnO and Dlhc-ZnO having direct band gaps of 1.81 eV and 1.85 eV, respectively, while Tile-ZnO had an indirect band gap of 2.03 eV. Additionally, all the monolayers demonstrated near-free-electron characteristics with a small effective mass, resulting in significant optical absorption in the visible and ultraviolet range. These findings suggest the potential application of two-dimensional ZnO monolayers in the field of photoelectricity and provide theoretical guidance for the exploration of wide-band-gap 2D semiconductors.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2023)
Article
Chemistry, Physical
Charles W. Sinagra, Felix O. Saouma, Calford O. Otieno, Saul H. Lapidus, Jian-Han Zhang, Andrew J. Craig, Pedro Grima-Gallardo, Jacilynn A. Brant, Kimberly A. Rosmus, Kate E. Rosello, Joon I. Jang, Jennifer A. Aitken
Summary: In this study, two quaternary diamond-like semiconductors in the Cu-Zn-Ge-Se system, Cu2ZnGeSe4 and the new Cu4ZnGe2Se7, were compared in terms of their crystal structures, electronic structures, and physicochemical properties. The compounds exhibit different optical bandgaps and SHG responses, with Cu2ZnGeSe4 showing a larger SHG coefficient compared to benchmark materials. Both compounds are air and thermally stable, undergo phase transitions, and have wide windows of optical clarity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Physics, Applied
B. Fluegel, A. D. Rice, K. Alberi
Summary: Low-temperature Raman scattering was used to investigate the crystal structure of Cd3As2 and (Cd1-x Zn (x) )(3)As-2. The results showed that the crystal structure of Cd3As2 was consistent with bulk-grown Cd3As2, but distinct from nanoscale platelets and wires. In (Cd1-x Zn (x) )(3)As-2, the phonon frequencies and scattering amplitudes varied continuously with Zn concentration, but at least one frequency was absent at the alloy endpoint.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Geng Zhao, Chengchun Zhao, Yilun Yang, Min Xu, Shanming Li, Yin Hang
Summary: Nd:CeF3 single crystal grown by the Bridgman Stockbarger method exhibits superior optical and magnetooptical properties compared to CeF3 and TGG, with high transparency and enhanced Faraday rotation, especially suitable for high power isolators.
Article
Materials Science, Multidisciplinary
S. D. Lokhande, H. A. Varudkar, M. B. Awale, L. H. Kathwate, J. S. Dargad, V. D. Mote
Summary: Undoped and cobalt-doped ZnO nanoparticles were synthesized using the co-precipitation method. XRD and FESEM-EDS analysis was conducted for phase identification, morphological, and quantitative analysis. The XRD results showed that the samples had a polycrystalline nature with a hexagonal wurtzite structure, and the crystallite size increased with cobalt incorporation. FESEM analysis revealed agglomerated particles, indicating successful doping. A redshift in the absorbance peak was observed. Raman spectra confirmed the formation of wurtzite ZnO with all characteristic peaks.
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, Inorganic & Nuclear
Ziyi Chen, Dajiang Mei, Xiaoming Jiang, Jun Zhao, Yuandong Wu, Jihu Wang, Shaoguo Wen
Summary: The quaternary chalcogenide LiGaSiS4 was prepared through a high-temperature reaction and exhibits good thermal stability and a large band gap. The crystal structure of LiGaSiS4 is based on a three-dimensional framework and the optical properties are closely related to the characteristics of the chemical bonds.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
To Thanh Loan, Dinh Khac Huy, Hoang Manh Chung, Nguyen Kim Thanh, Tran Duc Hoan, Nguyen Phuc Duong, Siriwat Soontaranon, Wantana Klysubun
Summary: This paper presents a comprehensive view of the effect of ZnO coating on the structure and magnetic properties of magnetic iron oxide/ZnO core/shell nanocomposites. The results show that the microstrain, magnetization, and blocking temperature of the nanocomposites are influenced by the ZnO content.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Lin Yue, Mengfei Wang, Zhicheng Yang, Yonghui Han, Huiping Qin, Yanfang Liu, Zaixing Li
Summary: The Bi-Sn-MOF(NH2) material was prepared using the solvothermal method and characterized using various techniques. The degradation efficiency of Bi-Sn-MOF(NH2) in the presence of new carmine (AR18) reached 99.9%, which was significantly higher than Bi-MOF(NH2) and Bi-Sn-MOF. The improved photocatalytic performance of Bi-Sn-MOF(NH2) can be attributed to the interaction between the amino group and bimetal, leading to enhanced electron-hole separation and carrier transport rate. The superoxide radical (.O2-) played a major role in the degradation process. Based on free radical determination and electrochemical tests, a photocatalytic mechanism for Bi-Sn-MOF(NH2) was proposed.
Article
Chemistry, Physical
Tianhui Wu, Xingxing Jiang, Yiran Zhang, Zujian Wang, Hongyuan Sha, Chao Wu, Zheshuai Lin, Zhipeng Huang, Xifa Long, Mark G. Humphrey, Chi Zhang
Summary: In this study, a new NLO crystal CISO was designed with a specific strategy to simultaneously enhance the SHG efficiency and maintain a high birefringence. The structure of CISO features cis-arrangement of oxyanion groups, leading to optimized optical properties.
CHEMISTRY OF MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Hayet Jellali, Rawia Msalmi, Hichem Smaoui, Slim Elleuch, Anowar Tozri, Thierry Roisnel, Edoardo Mosconi, Numa A. Althubiti, Houcine Naili
Summary: A one-dimensional ABX(3) hybrid perovskite material was synthesized and characterized. The material exhibited direct band-gap nature and showed cold white-light and blue-light emissions under different doping conditions. Moreover, the doping of specific ions allowed for the modulation of the band-gap energy and optical absorption properties.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Chemistry, Inorganic & Nuclear
Jyoti Pandey, Vipul Shrivastava, Rajamani Nagarajan
INORGANIC CHEMISTRY
(2018)
Article
Materials Science, Multidisciplinary
Vipul Shrivastava, Rajamani Nagarajan
JOURNAL OF MATERIALS SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
Priyanka Yadav, Kovuru Gopalaiah, Vipul Shrivastava, Rajamani Nagarajan
Summary: This study successfully fabricated a microspherical core-shell structure consisting of MoO2 and graphitic-C3N4 through a simple one-step calcination procedure. The core-shell exhibited high optical bandgap, facilitated dye degradation, and promoted organic synthesis.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Materials Science, Ceramics
Vipul Shrivastava, Rajamani Nagarajan
Summary: The stabilization of FeAlO3 perovskite with larger sized Pr3+ ions instead of Fe3+ ions was successfully achieved, resulting in ferroelectric behavior in the iron substituted PrAlO3 samples. Various characterizations confirmed the presence of iron and praseodymium in different oxidation states, as well as the ferromagnetic/ferrimagnetic behavior in the samples. High Curie temperature above room temperature was observed in the 70 mol% iron substituted PrAlO3, which is a significant finding among the available polymorphs of PrAlO3 or FeAlO3.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Priyanka Yadav, Vipul Shrivastava, Rajamani Nagarajan
Summary: A mixture of ammonium para tungstate and graphitic C3N4 was calcinated to produce blue colored products, with XRD patterns confirming the presence of hexagonal and orthorhombic WO3. The samples were found to be doped with carbon and nitrogen, affecting their catalytic activity and optical properties. Hexagonal WO3 exhibited superior catalytic efficiency and higher oxygen vacancy concentration compared to orthorhombic WO3, leading to enhanced degradation of dye solutions under ultrasonic conditions.
SOLID STATE SCIENCES
(2021)
Article
Chemistry, Physical
Rajamani Nagarajan, Vipul Shrivastava, Jyoti Pandey
Summary: This study stabilized metastable gamma-Bi2O3 without impurities and investigated the effects of indium ion doping on its structure and optical properties. Doping with indium resulted in changes in color and optical bandgap, with non-stoichiometric samples exhibiting lower bandgap values. Additionally, indium-doped non-stoichiometric Sillenites displayed higher BET surface area and slightly increased oxygen ion conductivity compared to stoichiometric counterparts.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Vipul Shrivastava, Rajamani Nagarajan
Summary: In this study, progressive substitution of non-magnetic Al3+ ion with magnetic Cr3+ ion in PrAlO3 was carried out. The effects of chemical pressure on the structure, optical, and magnetic properties were investigated. The inclusion of Cr3+ ions led to a reduction in symmetry and a change in the optical bandgap and magnetic behavior of the samples.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Vipul Shrivastava, Rajamani Nagarajan
DALTON TRANSACTIONS
(2020)
Article
Chemistry, Physical
Aditi Vijay, Aritra Mukhopadhyaya, Vipul Shrivastava, Devanshi Bhardwaj, Ashok K. Ganguli, Md Ehesan Ali, Sonalika Vaidya
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2020)
Article
Chemistry, Inorganic & Nuclear
Viput Shrivastava, Vikash Kumar Tripathi, Rajamani Nagarajan
DALTON TRANSACTIONS
(2019)
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.