Article
Materials Science, Ceramics
Wang Xinjian, Zhu Yixuan, Zhang Peng, Yang Wenlong, Wang Ting, Huan Yu
Summary: The addition of Sn elements improved the piezoelectric properties of (Ba0.85Ca0.15)(Ti0.9Zr0.1-xSnx)O-3 ceramics, with the best performance achieved at x=0.04. Sn-doped BCZT based lead-free piezoelectric ceramics have potential applications in transducers and actuators.
JOURNAL OF INORGANIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
D. B. Mane, O. C. Pore, D. S. Sawant, D. V. Rupnavar, R. V. Shejwal, S. H. Mujawar, L. D. Kadam, R. V. Dhekale, G. M. Lohar
Summary: In this study, V-doped Ni(OH)(2) microflowers were successfully fabricated using a chemical bath deposition process. The resulting material exhibited high specific capacitance and stability, offering potential for application in supercapacitors.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Materials Science, Ceramics
M. Aamir, I Bibi, S. Ata, K. Jilani, F. Majid, S. Kamal, N. Alwadai, M. A. S. Raza, M. Bashir, S. Iqbal, M. Aadil, M. Iqbal
Summary: In this study, La(1-x)Co(x)Cr(1-y)FeyO(3) perovskite was successfully synthesized via a simple micro-emulsion route. The properties of the perovskite were significantly altered by the addition of Co and Fe ions, leading to enhanced dielectric, ferroelectric, and magnetic behavior. The La0.40Co0.60Cr0.40Fe0.60O3 compound showed promising potential for photocatalytic dye degradation under visible light exposure, demonstrating efficient performance under solar light exposure.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Li-Yan Hu, Li-Fang Yu, Huan Yang, Xian Xu, Fang Wang, Xiao-Hong Xu
Summary: Two-dimensional VSe2 and V1-xFexSe2 nanosheets were synthesized using a high-temperature organic solution method, with tunable thickness and room-temperature ferromagnetism. The enhancement of magnetization in V0.8Fe0.2Se2 nanosheets is attributed to the coupling interaction of 3d orbits between V and Fe atoms, showing 5 times higher coercivity and magnetization compared to pure VSe2 nanosheets.
Article
Energy & Fuels
Xinyi Chen, Guangsheng Zou, Yanliang Yuan, Zuwei Xu, Haibo Zhao
Summary: The research investigates the use of Ni-doped nano-Fe/Ce oxygen carriers for the chemical looping dry reforming of methane. Thermodynamic analysis and reaction simulation are conducted on the CL-DRM process with iron-based oxygen carriers. The experimental results show that the Ni-doped Fe/Ce oxygen carriers achieve high performance and stable cyclic stability due to the high dispersion of Ni and the transformation of Fe oxides and CeO2.
Article
Chemistry, Multidisciplinary
Francisco Gamarra, Jesus Medina, Wilson Lanchipa, Rocio Tamayo, Elisban Sacari
Summary: Pure and Fe-doped TiO2 nanoparticles were synthesized using the sol-gel method and characterized by various techniques. The results showed a correlation between crystallite size and dopant amount, as well as a decrease in band gap. The synthesized samples exhibited promising arsenic removal capacity and were not significantly affected by other ions.
Article
Materials Science, Multidisciplinary
Aamir Ghafoor, Ismat Bibi, Farzana Majid, Shagufta Kamal, Sadia Ata, Nosheen Nazar, Munawar Iqbal, Muhammad A. S. Raza, Maha M. Almoneef
Summary: A series of La1-xCexNi1-yFeyO3 (x, y = 0.00-0.25) nanoparticles were synthesized via micro-emulsion route and their doping effects on optical, photocatalytic, and structural properties were investigated. The doped nanoparticles exhibited enhanced photocatalytic activity and efficient visible light degradation of dye compared to pristine LaNiO3. The enhanced photocatalytic activity and narrow bandgap of Ce and Fe doped LaNiO3 make these materials promising for dye removal and photovoltaic applications.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Materials Science, Ceramics
Soorya G. Nath, E. I. Anila
Summary: UV emitting nanophosphors, especially monoclinic yttrium oxide doped with cerium, have drawn attention from researchers due to their diverse applications in UV LEDs and phototherapy. This study successfully synthesized cerium-doped monoclinic yttrium oxide using wet chemical precipitation at low temperature (90 degrees C). Analysis confirmed the formation of monoclinic phase and the presence of Ce3+ energy levels. UV absorption and photoluminescence experiments demonstrated the material's ability to emit UV in both short and long wavelengths. BET analysis revealed the relationship between BET surface area and luminescence intensity. The potential therapeutic applications, particularly in skin diseases, further expand the scope of this work.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Anima Mahajan, Nausad Khan, Krishna K. Yadav, Menaka Jha, Santanu Ghosh
Summary: In this study, LaS2 ultrafine nanostructures were successfully synthesized using anisotropic nanostructures of La(OH)(3), which have applications in display devices, optoelectronics, field emission, and thermoelectric devices due to their low work function and excellent chemical and physical properties. Anisotropic La(OH)(3) was synthesized by the micellar-assisted hydrothermal route and then reacted with elemental sulfur at ambient pressure to obtain stable LaS2 nanoparticles with a size of about 25 nm. The obtained lanthanum disulfide was used to make LaS2 ink and spin-coated onto a silicon substrate to fabricate a LaS2 film. The field emission study of the LaS2 film showed the lowest turn-on field (<3.9 V/mu m), a high field enhancement factor (beta = 14,594), and a high current density of 7.15 mu A/cm(2), which is about 10 times higher than previous reports.
APPLIED SURFACE SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Qian Zhang, Li Feng, Zhenlu Liu, Longjun Jiang, Tiancheng Lan, Chunmei Zhang, Kunming Liu, Shuijian He
Summary: This study developed a simple chemical blowing method to prepare hierarchical porous N, O Co-Doped carbon materials with optimized capacitance performance. The symmetric supercapacitors based on these materials exhibited good stability and potential applications in lighting LED bulbs.
Article
Materials Science, Ceramics
A. Santiago de la Rosa, D. A. Cortes-Hernandez, J. Escorcia-Garcia, H. Uriel Lopez-Herrera
Summary: White-light luminescent Tm3+-doped borosilicate glass-ceramics were synthesized by the sol-gel method. The addition of Tm2O3 increased the thermal stability, non-bridging oxygen concentration, and photoluminescence intensity, resulting in a white-emission color. These materials have potential applications as phosphors in solid-state white-light-emitting devices.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Atendra Kumar, Shiva Sundar Yadava, Laxman Singh, Manish Kumar Verma, N. B. Singh, K. D. Mandal
Summary: In this study, a nanocomposite BHF-BCT was fabricated via chemical method and characterized using various techniques including XRD, FTIR, SEM, TEM and AFM. The results confirmed the phase formation and purity of BHF-BCT, as well as its high dielectric constant and ferromagnetic behavior.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Xiang Tai Guo, Zi Long Yu, Liang Liang Liu, Li Lin Xiang, Ya Xin Sun, Juan Liu
Summary: This paper investigates the evolution of structure and properties of BiFeO3-(Ba0.85Ca0.15)(Ti0.9Hf0.1)O-3 (BFO-BCTH) ceramics. XRD analysis shows the coexistence of rhombohedral R3c phase and pseudocubic (PC) phase in all samples, and the content of PC phase increases with increasing BCTH content. Two dielectric anomalies are observed for all BFO-BCTH samples. The leakage current density significantly decreases with increasing doping BCTH content, and the ferroelectric and piezoelectric properties are enhanced for x = 0.25-0.27 samples. The magnetic properties of the moderately doped ceramics are significantly improved, but the magnetization intensity decreases due to magnetic dilution caused by increased doping content.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
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
Materials Science, Ceramics
Qiaoping Sun, Zhiwei He, Heyun Tan, Paolo Aprea, Shiyou Hao
Summary: Ce-Pr-Fe-O@C photocatalyst was synthesized via a codeposition method, and the effect of synthesis parameters on the degradation of AR14 was investigated. The results showed that the photocatalytic activity of Ce-Pr-Fe-O@C doped with a small amount of Fe, Pr, and C is more effective.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Silvia R. Gavinho, Ana Sofia Padua, Isabel Sa-Nogueira, Jorge C. C. Silva, Joao P. Borges, Luis C. C. Costa, Manuel Pedro F. Graca
Summary: Polymeric membranes are commonly used in guided bone regeneration (GBR) in dentistry. The addition of bioactive glasses with therapeutic ions, including zinc, can enhance cell adhesion, proliferation, and differentiation. In this study, bioactive glasses containing different concentrations of zinc were developed, and their structural and biological characteristics were evaluated. The results showed that the zinc-containing bioactive glasses did not exhibit significant antibacterial activity, but the highest concentration of zinc did not compromise bioactivity and promoted cell viability. Cell culture assays using the membranes demonstrated that the addition of zinc improved cell viability and increased alkaline phosphatase production.
Article
Materials Science, Multidisciplinary
Silvia Rodrigues Gavinho, Bruno Miguel Goncalves Melo, Joao Paulo Borges, Jorge Carvalho Silva, Manuel Pedro Fernandes Graca
Summary: Biomaterial coatings on dental implants, particularly using bioglass with therapeutic ions, such as cerium, can improve the integration rate and bond between bone and implant. Cerium oxide addition does not affect the glass structure, but increases the number of non-bridging oxygens. It also enhances the antioxidant and impedance properties of the glass, making it suitable for use as a coating material on dental implants.
Article
Materials Science, Multidisciplinary
Jose P. B. Sliva, Marian C. Istrate, Markus Hellenbrand, Atif Jan, Maximilian T. Becker, Joanna Symonowicz, Fabio G. Figueiras, Veniero Lenzi, Megan O. Hill, Corneliu Ghica, Konstantin N. Romanyuk, Maria J. M. Gomes, Giuliana Di Martino, Luis Marques, Judith L. MacManus-Driscoll
Summary: A new method for stabilizing ferroelectric o-ZrO2 films with negative piezoelectric coefficient is demonstrated by growing -8nm thick films using ion-beam sputtering. The films on (011)-Nb:SrTiO3 showed oriented o-phase and exhibited ferroelectric behavior, while films on (001)-Nb:SrTiO3 showed mixed m and o-phases with inferior ferroelectric properties. Density functional theory calculations support the experimental findings and explain the negative piezoelectric coefficient.
APPLIED MATERIALS TODAY
(2023)
Article
Crystallography
Vadla Veenachary, Eskilla Venkata Ramana, Simhachalam Narendra Babu, Venkata Sreenivas Puli, Adiraj Srinivas, Gopalan Srinivasan, Sujoy Saha, Guduru Prasad, Nandiraju Venkata Prasad
Summary: In this study, intergrowth of multiferroic compounds Bi4RTi3Fe0.7Co0.3O15-Bi3RTi2Fe0.7Co0.3O12-delta (BRTFCO15-BRTFCO12) (rare earth (R) = Dy, Sm, La) were prepared using solid-state reaction method. The X-ray diffraction Rietveld refinement revealed orthorhombic structure with three-layered and four-layered compounds. Magnetic measurements showed that the Sm-modified intergrowth compound had a larger magnetization compared to Dy- and La-doped ones. The higher magnetization can be attributed to distortion in the unit cell, bonding of Fe3+-O-Co3+, and possible mixture of FexCoy-type nanoparticles formed during synthesis of intergrowths. The results demonstrate that the RE-modified intergrowth method is an effective approach for preparing higher-layer Aurivillius multiferroic ceramics.
Article
Engineering, Chemical
Bahaa Saleh, Fadl A. Essa, Zakaria M. Omara, Mohamed H. Ahmed, Mahmoud S. El-Sebaey, Mogaji Taye Stephen, Lingala Syam Sundar, Mohammed A. Qasim, Eskilla Venkata Ramana, Sengottiyan Shanmugan, Ammar H. Elsheikh
Summary: As the issue of freshwater scarcity affects all people, a novel desalination method is proposed, involving a solar collector, evacuated pipe, condenser, and separation unit. The system heats the saline water using solar energy, controls the water flow rate, separates the vapor, and produces freshwater distillate. Results show that lower water flow rates lead to higher evaporation rates and freshwater productivity, with the optimal performance achieved at 7.5 L/h flow rate.
Article
Multidisciplinary Sciences
I. El Heda, R. Dhahri, J. Massoudi, E. Dhahri, F. Bahri, K. Khirouni, B. F. O. Costa
Summary: Cu0.5Fe2.5O4 nanoparticles were synthesized and confirmed to have the desired spinel phase through XRD and FTIR analysis. The conduction behavior was found to be semiconductor-like and explained by the NSPT model. The DC conductivity and hopping frequency showed a positive correlation, and the scaling of conductivity demonstrated the presence of Coulomb interactions. The compound exhibited low electrical conductivity and dielectric loss, but high permittivity, making it a promising candidate for energy storage, photocatalytic, and microelectronic applications.
Article
Chemistry, Physical
Indrani Coondoo, Denis Alikin, Alexander Abramov, Fabio G. Figueiras, Vladimir Y. Shur, Georgina Miranda
Summary: This study investigated the piezoelectric, ferroelectric, and electromechanical properties of stannum-doped (Ba0.88Ca0.12)(SnxZr0.1-xTi0.9)O3 ceramics at both macroscopic and local scale levels. The substitution of stannum had an influence on the crystal lattice and microstructure, thus affecting the dielectric, ferroelectric, and electromechanical properties. Stannum substitution led to enhanced electrical and electromechanical properties, with the composition containing 0.3 at% of Sn showing optimal properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Yonny Romaguera-Barcelay, Fabio Gabriel Figueiras, Ernesto Govea-Alcaide, Walter Ricardo Brito, Henrique Duarte da Fonseca Filho, Ariamna Maria Dip Gandarilla, Stefan Talu, Pedro B. Tavares, Javier Perez de la Cruz
Summary: The effects of lattice strain on the structure and magnetic properties of Eu1-xYxMnO3 (0.0 ≤ x ≤ 0.5) thin films were investigated by comparing them with equivalent composition ceramics. The films were deposited by spin-coating chemical solution onto Pt\TiO2\SiO2\Si (100) standard substrates. X-ray diffraction and Raman spectroscopy measurements showed that all films crystallize in an orthorhombic structure with space group Pnma. The Y-substitution for Eu caused a contraction of the unit cell, resulting in a broadening of the Mn-O1-Mn angle and a gradual decrease in magnetic order response.
Article
Chemistry, Multidisciplinary
Silvia Rodrigues Gavinho, Ana Sofia Padua, Laura Isabel Vilas Holz, Isabel Sa-Nogueira, Jorge Carvalho Silva, Joao Paulo Borges, Manuel Almeida Valente, Manuel Pedro Fernandes Graca
Summary: In this study, Bioglass 45S5 with added SrO or MgO was developed and its physical and biological properties were evaluated. The results showed that the addition of these ions promoted a slight increase in the number of non-bridging oxygens, decreased cell toxicity of Bioglass 45S5, and enhanced antibacterial effect.
Article
Crystallography
Eduardo da Silva Gomes, Antonia Millena de Oliveira Lima, Silvia Rodrigues Gavinho, Manuel Pedro Fernandes Graca, Susana Devesa, Ana Angelica Mathias Macedo
Summary: Bioceramics, in the form of powder, coatings or prostheses, are widely used in medical and dental areas for repairing and replacing parts of the human body. In this study, hydroxyapatite nanocrystalline powders were synthesized and sintered with a blend of galactomannan and chitosan. The influence of the blend content on the bioceramics was investigated, and it was found that increasing the blend percentage led to an increase in grain size and a decrease in density and hardness of the samples.
Article
Crystallography
Eya Rezgui, Najoua Ouerfelli, S. R. Gavinho, J. P. F. Carvalho, M. P. F. Graca, S. Soreto Teixeira
Summary: The compounds (Na1.5Mn3MnIII)-Mn-II (0.5)(AsO4) (3) and Na1.5MnII Fe-3(III) (0.5)(AsO4) (3) were synthesized via a high-temperature solid-state combustion reaction and characterized. X-ray diffraction measurements showed their monoclinic crystal structures. These compounds have potential applications due to their unique structural and electrical properties.
Article
Engineering, Biomedical
Imen Hammami, Silvia Rodrigues Gavinho, Suresh Kumar Jakka, Manuel Almeida Valente, Manuel Pedro Fernandes Graca, Ana Sofia Padua, Jorge Carvalho Silva, Isabel Sa-Nogueira, Joao Paulo Borges
Summary: This study demonstrates the development of antibacterial materials for implant coatings by incorporating copper into 45S5 Bioglass((R)). By combining the regenerative properties of Bioglass((R)) with the antimicrobial effects of copper, this material has the potential to prevent infections, enhance osseointegration, and improve the long-term success of implants.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Chemistry, Multidisciplinary
R. Dhahri, M. A. Valente, P. Graca, B. F. O. Costa
Summary: La0.67Ca0.2Ba0.13Fe1-xTixO3 samples were synthesized and their dielectric properties and conduction mechanisms were studied. The results showed that the materials exhibited semiconductor behavior with an increase in conductivity at higher temperatures. Nyquist diagrams indicated contributions from grains and grain boundaries, and dielectric analysis confirmed theoretical predictions. The low conductivity and high dielectric constant make this material a potential candidate for energy storage and electronic devices and microwaves applications.
Article
Materials Science, Multidisciplinary
Mengjiao Dong, Liyun Liao, Chensheng Li, Yingxiao Mu, Yanping Huo, Zhong-Min Su, Fushun Liang
Summary: This study investigates the influence of the polarity of polymer matrices on persistent room-temperature phosphorescence (pRTP). It is discovered that intense phosphorescence emission can be achieved in highly polar matrices such as polyacrylic acid (PAA). The dipole-dipole interaction between the polar fluorophore and polar matrix is proposed to stabilize the excited state and facilitate the generation of efficient room-temperature phosphorescence emissions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Han-Jiang Yang, Weijia Xiang, Xiangzhou Zhang, Jin-Yun Wang, Liang-Jin Xu, Zhong-Ning Chen
Summary: This article reports a 2D copper(I)-based cluster material for X-ray imaging, which exhibits ultra-high spatial resolution, high photoluminescence efficiency, and low detection limit. The material shows excellent linear response to X-ray dose rates and light output, and has the best spatial resolution among reported lead-free metal halide hybrids.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Review
Materials Science, Multidisciplinary
Taek Joon Kim, Sang-hun Lee, Dayeong Kwon, Jinsoo Joo
Summary: Donor-acceptor heterostructures using organic-inorganic halide perovskites, two-dimensional transition metal dichalcogenides, pi-conjugated organic small/macro molecules, and quantum dots are promising platforms for exciton-based photonics and optoelectronics. Hetero-interlayer excitons and hetero-intermolecular excitons formed through optical and/or electrical charge transfer in various heterostructures are important quasi-particles for light emission, detection, and harvesting systems.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Liemao Cao, Xiaohui Deng, Zhen-kun Tang, Rui Tan, Yee Sin Ang
Summary: We investigate the interface properties between WSi2N4 and Mo2B, O-modified Mo2B, and OH-modified Mo2B nanosheets. We find that WSi2N4 and Mo2B form n-type Schottky contacts, while functionalizing Mo2B with O and OH leads to the formation of both n-type and p-type ohmic contacts with WSi2N4. Additionally, we demonstrate the emergence of quasi-ohmic contact with ultralow lateral Schottky barrier and zero vertical interfacial tunneling barriers in Mo2B(OH)2-contacted WSi2N4.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ga Eun Kim, Hae-Jin Kim, Heesuk Jung, Minwoo Park
Summary: This study presents a solution to the commercialization challenges of flexible LEDs based on MAPbBr(3) by incorporating polyurethane and an In-Ga-Zn-Sn liquid alloy. The designed devices showed high flexibility, efficiency, and durability, with improved electron injection and reduced defects, making them promising for next-generation displays.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tao Shen, Zeng Wu, Zhen Jiang, Dongsheng Yan, Yan Zhao, Yang Wang, Yunqi Liu
Summary: Sidechain engineering is an important molecular design strategy for tuning the solid-state packing and structural ordering of conjugated polymers. The effects of sidechain direction on the optoelectronic properties of polymers and device performance were systematically investigated in this study. The results demonstrate that tuning the sidechain substitution direction can effectively improve the molecular structure and light absorption properties of polymers, providing new insights for the rational design of functional polymers.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Lotte Clinckemalie, Bapi Pradhan, Roel Vanden Brande, Heng Zhang, Jonathan Vandenwijngaerden, Rafikul Ali Saha, Giacomo Romolini, Li Sun, Dirk Vandenbroucke, Mischa Bonn, Hai I. Wang, Elke Debroye
Summary: In this study, a facile strategy using a non-conductive polymer was proposed to fabricate stable, pinhole-free thick films. The effect of introducing a second phase into CsPbBr3 perovskite crystals on their photophysical properties and charge transport was investigated. The dual phase devices exhibited improved stability and more effective operation at higher voltages in X-ray detection.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jingye Zou, Shenglan Hao, Pascale Gemeiner, Nicolas Guiblin, Omar Ibder, Brahim Dkhil, Charles Paillard
Summary: When rare-earth ions are embedded in a ferroelectric material, their photoluminescence can serve as an all-optical probe for temperature, electric field, and mechanical stimulus. However, the impact of ferroelectric phase transitions on photoluminescence is not well understood. In this study, we demonstrate changes in the photoluminescence of green emission bands during critical ferroelectric transitions in an Er-doped BaTiO3 material. We also find that the intensity ratio and wavelength position difference of sub-peaks provide information on the phase transitions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jiangchao Han, Daming Zhou, Wei Yang, Chen Lv, Xinhe Wang, Guodong Wei, Weisheng Zhao, Xiaoyang Lin, Shengbo Sang
Summary: Rare type-II spin-gapless semiconductors (SGSs) have attracted increasing attention due to their unique spin properties. In this study, the interface contacts and spin transport properties of different devices composed of VSi2P4 ferromagnetic layers were investigated. The results show that VSi2P4 is a promising material for designing vertical van der Waals heterostructures with a giant tunnel magnetoresistance (TMR) in spintronic applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tianqi Zhao, Renagul Abdurahman, Qianting Yang, Ruxiangul Aiwaili, Xue-Bo Yin
Summary: In this study, we designed and prepared Cr and Ba-doped gamma-Ga2O3 nanoparticles to achieve near-infrared emission and enhance the emission intensity. The emission mechanism was proposed based on the trap depth, band gap, and energy levels of Cr ions. The ratiometric temperature sensing and encryption information transfer demonstrated the potential applications of this technology.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Shuvankar Gupta, Jyotirmoy Sau, Manoranjan Kumar, Chandan Mazumdar
Summary: In this study, a new spin-gapless semiconductor material CoFeMnSn is reported, and its stable structure and spin-polarized band structure are determined through experimental realization and theoretical calculations. The compound exhibits a high ferromagnetic transition temperature, making it excellent for room temperature applications. The nearly temperature-independent resistivity, conductivity, and carrier concentration of the compound, adherence to the Slater-Pauling rule, and the high intrinsic anomalous Hall conductivity achieved through hole doping further confirm its spin-gapless semiconductor nature. Additionally, the compound's SGS and topological properties make it suitable for spintronics and magneto-electronics devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ikumi Aratani, Yoji Horii, Yoshinori Kotani, Hitoshi Osawa, Hajime Tanida, Toshiaki Ina, Takeshi Watanabe, Yohko F. Yano, Akane Mizoguchi, Daisuke Takajo, Takashi Kajiwara
Summary: In this study, two-dimensional arrays of single-molecule magnets (SMMs) based on metal-organic frameworks (MOFs) were systematically modified through Langmuir-Blodgett methods and chemical modifications. The introduction of bulky alkoxide groups induced structural changes and perpendicular magnetic anisotropy. This research provides a promising strategy for the construction of high-density magnetic memory devices using molecular spintronics.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Zonghao Lei, Houhe Dong, Lijie Sun, Bing Teng, Yanfei Zou, Degao Zhong
Summary: Researchers have successfully developed four different up-conversion phosphors based on the Eulytite-type host Ba3Yb(PO4)(3). The optical temperature sensing properties of these phosphors were thoroughly investigated, and it was found that Ba3Yb(PO4)(3):Tm/Er/Ho showed potential for optical temperature measurement applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
C. Roncero-Barrero, M. A. Carvajal, J. Ribas-Arino, I. de P. R. Moreira, M. Deumal
Summary: This study computationally investigates the conductivity of four isostructural compounds with different Se contents, and reveals the parameters that define their conductivity in stable organic radical materials. The results provide insights into the influence of Se content on the conductivity and highlight the importance of considering multiple parameters in understanding the trends in conductivity.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Remi Arras, Kedar Sharma, Lionel Calmels
Summary: In this study, we investigated the interplay between structural defects in NiFe2O4, showing that the complex formed by a Ni-Oh/Fe-Td-cation swap and a neutral oxygen vacancy is more stable than these two isolated defects, and significantly reduces the width of the minority-spin band gap.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
