Article
Polymer Science
Dandan Guo, Mengnan Ruan, Weixing Nie, Zhengang Guo, Zhifeng Liu
Summary: In this study, conductive polyaniline (PANI) organics were synthesized and coated on the surface of CCTO particles, and then the CCTO@PANI particles were incorporated into natural rubber (NR) to prepare polymer composites. The Coulomb-blockade effect was observed when PANI clusters were embedded in an insulating matrix. Compared with CCTO/NR composites, although the dielectric constant of CCTO@PANI/NR composites slightly decreased, they still maintained excellent breakdown strength. This method provides a promising approach for coordinating and preparing dielectric composites with desired properties.
JOURNAL OF POLYMER RESEARCH
(2023)
Article
Chemistry, Physical
Kevin Haeuser, Zhiren Zhou, Prannoy Agrawal, Rolf Jakoby, Holger Maune, Joachim R. Binder
Summary: A finite element method (FEM)-based simulation approach was developed and tested to predict the tunability in composite materials, which showed good prediction capabilities. The simulation model was used to predict the tunability of a network-structured composite, demonstrating a high tunability exceeding other evaluated models. Experimental verification was conducted using structured samples, showing higher tunability and dielectric loss compared to unstructured samples. These structured samples have potential for use in tunable radio frequency applications with high performance and low energy loss.
Article
Polymer Science
Shuyan Gao, Hang Zhao, Na Zhang, Jinbo Bai
Summary: The study focused on enhancing the electromechanical actuated properties of TiO2@SiO2/PDMS nanocomposites by fabricating core-shell TiO2@SiO2 nanoparticles. The addition of TiO2@SiO2 at a low electric field led to a significantly improved in-plane actuated strain, promising for designing novel composites with advanced low-field actuated electromechanical properties in next generation DE systems.
Article
Chemistry, Multidisciplinary
Juanjuan Zhou, Wenying Zhou, Mengxue Yuan, Xinbo Dong, Jiebing Zhang, Xuejiao Zhang, Yanqing Zhang, Xiaolong Chen, Yanrong Chen, Xiangrong Liu
Summary: To suppress the enormous loss and conductivity of Ni/PVDF composites, a TiO2 shell was coated on pristine Ni particles via a sol-gel approach and then composited with PVDF. The resulting Ni@TiO2/PVDF composites exhibit high epsilon(r) and enhanced breakdown strength (E-b) but remarkably suppressed loss and conductivity. The dielectric performances can be effectively tuned through finely adjusting the TiO2 shell's thickness.
Article
Pharmacology & Pharmacy
Norbert Varga, Rita Belteki, Adam Juhasz, Edit Csapo
Summary: Using Tween20 and Pluronic F127 as stabilizers, the non-steroid anti-inflammatory drug ketoprofen (KP) is encapsulated in poly(lactide-co-glycolide) (PLGA) nanostructured particles, demonstrating the design of a biocompatible colloidal carrier with highly controllable drug release. The formation of a well-defined core-shell structure is observed using nanoprecipitation method. Stabilized polymer-based colloids with a hydrodynamic diameter of around 200-210 nm can be achieved by optimizing the KP concentration with the appropriate stabilizer. The release of the drug from the PLGA carrier particles is greatly influenced by the molecular weight and structure of the stabilizer.
Article
Engineering, Manufacturing
Ting Li, Wenying Zhou, Bo Li, Ying Li, Dan Cao, Juanjuan Zhou, Jing Zuo, Jiangtao Cai, Guangheng Wang, Dengfeng Liu, Huiwu Cai
Summary: In this study, a novel core@double-shell structured zinc filler was synthesized and applied in PVDF composites. The results showed that the composites exhibited significantly enhanced dielectric properties and thermal conductivity, suggesting potential applications in the field of microelectronics.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Review
Chemistry, Multidisciplinary
Ye Run-Ping, Wang Xinyao, Cameron-Alexander Hurd Price, Liu Xiaoyan, Yang Qihua, Mietek Jaroniec, Liu Jian
Summary: This work discusses the preparation and properties of special catalyst YCSNs in heterogeneous hydrogenation reactions, as well as the challenges in their application in gas and liquid-phase hydrogenation reactions, and explores the opportunities and prospects for future research.
Article
Materials Science, Composites
Liyuan Yu, Dan Yang, Qungui Wei, Liqun Zhang
Summary: A novel thermally conductive composite was designed by incorporating aluminum oxide/tannic acid-ferric ion/silver nanoparticles into an NBR matrix, improving the thermal conductivity and dielectric constant of the material. The research showed that this method effectively enhances the thermal conductivity of the composite material, with significant potential for practical applications.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Physical
Menghe Jiang, Ying Wang, Cuili Xiang, Yongjin Zou, Fen Xu, Lixian Sun, Dan Cai, Chua Yong Shen
Summary: In this study, MnxCoyO4 @MoS2 composites were obtained by coating flake MoS2 arrays on spherical MnxCoyO4 via hydrothermal and heat treatment methods. The MnxCoyO4 @MoS2 electrode material exhibited a specific capacitance of 1422 F g-1 at 1 A g-1 when x/y = 1:2, higher than that at x/y = 1:1 and 2:1. When assembled into an aqueous asymmetric supercapacitor, the proposed electrode material provided a specific capacitance of 131 F g-1 at 1 A g-1. After 5000 cycles, the electrode material showed a capacity retention of 85% and the device retained a specific power of 794 W kg-1 with 46.58 Wh kg-1. This electrode material design offers new ideas for the development of advanced electrodes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Liang Sun, Zhicheng Shi, Liang Liang, Jiufeng Dong, Zizhao Pan, Huanlei Wang, Zhe Gao, Yong Qin, Runhua Fan, Hong Wang
Summary: Polymer dielectrics have gained significant attention worldwide due to their potential for pulsed power capacitors. This study demonstrates that linear/nonlinear layered composites can effectively balance energy density and efficiency, and further enhancement in energy density is desired for miniaturization of electronic devices. The introduction of a novel class of core-shell structured graphene@titanium dioxide nanoboxes into poly(vinylidene fluoride-hexafluoropropylene)-poly(ether imide) double-layer films substantially enhances the energy density, breakdown strength, and efficiency. These nanocomposites also showcase excellent power densities and cycling stabilities, making them highly promising for advanced pulsed power capacitors.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Bo Wu, Xin Mao, Yi Xu, Rong Li, Nan Wu, Xianzhong Tang
Summary: Core-shell structured SiO2 particles with different shell thicknesses were prepared by coating EPDM onto their surface, showing high thermal conductivity, low dielectric loss, and low dielectric constant in copper clad laminates for potential use in high-frequency printed circuit boards.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Composites
Liang Gao, Jiaqi Zhang, Zijun Chen, Xuan Wang
Summary: Designing a core-shell structure for ceramic filler is an effective way to improve the insulation property of polymer matrix, but it suffers from a low dielectric constant that limits the energy storage density. In this study, a strategy for regulating shell thickness is proposed to induce dielectric polarization, resulting in improved dielectric constant and breakdown strength of PVDF-based nanocomposite incorporated by core-shell structured BT@SO nanoparticles. Compared to pure PVDF, the dielectric constant and breakdown strength of PVDF/BT@SO are increased by 82.2% and 61.3%, respectively, leading to a significantly enhanced discharge energy density of 352%, up to 12.2 J/cm(3). The study provides valuable insights into the interface control mechanism of core-shell nanostructure and offers a theoretical basis for designing polymer nanocomposites with high energy storage density.
POLYMER COMPOSITES
(2023)
Article
Environmental Sciences
Jie Zhou, Wen Huang, Bin Qiu, Qian Hu, Xiang Cheng, Zhanhu Guo
Summary: The study demonstrated that the core-shell structured PPy@PANI has good performance in enhancing methane production from anaerobic wastewater treatment, with significant improvements in methane production rate and yield. The optimal dosage was found to be 0.6 g/L, which resulted in a high methane production rate. The mechanisms behind the enhanced methane production rate were attributed to PPy@PANI enriching functional microorganisms and enhancing organic degradation and electron transfer.
Article
Chemistry, Inorganic & Nuclear
Le Wang, Pengyu Niu, Hongjuan Xi, Xiaoyan Chen, Congbiao Chen, Zhongyi Ma, Litao Jia, Bo Hou, Debao Li
Summary: A facile one-pot/three-step synthesis route was used to synthesize ZSM-22 zeolite with a core-shell structure. Characterization techniques including XRD, SEM, ICP, FTIR, Py-IR, N2-physisorption, and XPS analysis were employed to reveal the formation mechanism and properties of the core-shell ZSM-22. The as-fabricated core-shell zeolites possess adjustable size, structure, and acidity, providing a potential platform for designing other core-shell zeolites.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Laura Silvestroni, Simone Failla, Nicola Gilli, Cesare Melandri, Umut Savac, Servet Turan, Diletta Sciti
Summary: This study investigates the microstructural features of B4C-TiB2 composites and their evolution from powder processing to sintering. Nanoindentation was used to correlate small-scale grain structures to local properties, providing insights into mechanical behavior. The development of a core/shell structure with different compositions and variable guest cations in the boride grains was observed in dense ceramics, revealing new findings for the synthesis of high-performance materials.
MATERIALS & DESIGN
(2021)
Article
Nanoscience & Nanotechnology
Xin Qi, Chaolun Pan, Liqun Zhang, Dongmei Yue
Summary: In this study, multifunctional shape memory polymers (SMPs) are synthesized using sustainable Eucommia ulmoides gum as a raw material. These SMPs exhibit thermal-triggered one-way shape memory performance and two-way shape memory properties. They also possess good self-healing properties, shape reconfigurability, and chemical recyclability due to the dynamic nature of the boronic ester bond. Furthermore, by incorporating multiwalled carbon nanotubes, the composite shows responsiveness to near-infrared light and has potential applications in various fields.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Polymer Science
Xin Qi, Yingdong Zhang, Liqun Zhang, Dongmei Yue
Summary: This study presents a novel method for preparing stereocontrolled polymer using sustainable Eucommia ulmoides gum as a raw material. The isomerization mechanism of the gum was verified by density functional theoretical calculation. The isomerized gum exhibited potential applications in plastics, shape memory materials, and elastomer materials, with high tensile strength and elasticity comparable to natural rubber.
Article
Chemistry, Physical
Ziyi Zhang, Yue Fang, Qionghai Chen, Pengwei Duan, Xiaohui Wu, Liqun Zhang, Wenjie Wu, Jun Liu
Summary: Carbon black significantly improves the mechanical properties of elastomers and its reinforcing effect depends on the structure of the carbon black particles. This study used molecular dynamics simulation to investigate the relationship between the morphology of carbon black particles and the mechanical properties of elastomer nanocomposites. The results showed that the surface roughness and shape of carbon black have a significant impact on the mechanical properties of the filled rubber models.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Review
Polymer Science
Wufan Zhao, Jing He, Peng Yu, Xueliang Jiang, Liqun Zhang
Summary: Elastomers, especially diene-rubbers, can be damaged by thermal/oxygen aging, resulting in reduced elasticity and premature failure. Antioxidants are essential to slow down the aging process and extend the service life of rubber composites. This review provides an overview of recent progress in rubber antioxidants, including their oxidation process, strategies for improving antioxidative efficiency, minimizing blooming and migration, and addressing toxicity issues. Despite extensive research, there are still unresolved scientific and technological issues, and the future trends of rubber antioxidants are discussed.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Polymer Science
Xiaobo Zhai, Xin Chen, Fangyuan Zheng, Dongli Han, Junchi Zheng, Xin Ye, Xiaolin Li, Liqun Zhang
Summary: In this study, a series of low volatile organic compound (VOC) M-x-Si69 coupling agents were used to modify silica/NR nanocomposites and prepare engineering tires with lower rolling resistance and better wet slip resistance in a more environmentally friendly way. The results showed that M-1-Si69 was the best choice to achieve comprehensive optimization of the mechanical properties of the nanocomposites. Compared with Si69, M-1-Si69 coupling agent significantly reduced energy loss and improved the safety performance of engineering tires.
Article
Chemistry, Multidisciplinary
Shuangjian Yu, Siwu Wu, Shifeng Fang, Zhenghai Tang, Liqun Zhang, Baochun Guo
Summary: By introducing dynamic interfacial sulfides, a skeletal network elastomer with continuous reprocessability was successfully constructed. These elastomers exhibit high gel contents, high resilience, low creep, and competitive reinforcement compared to traditional vulcanizates, surpassing commercial thermoplastic vulcanizates (TPVs) materials.
ADVANCED MATERIALS
(2023)
Article
Polymer Science
Han-Bin Wang, Hong-Chi Tian, Shi-Jia Zhang, Bing Yu, Nan-Ying Ning, Ming Tian, Li-Qun Zhang
Summary: This study designs a dual reactive compatibilizer for improving the compatibility of MVQ/PP blends. The experimental results show that the compatibilizer can significantly increase the interface thickness, decrease the average size of MVQ dispersed phase, and improve the mechanical properties of the blend.
CHINESE JOURNAL OF POLYMER SCIENCE
(2023)
Article
Materials Science, Composites
Rui Zhang, Jiaye Li, Zongchao Xu, Stephen Jerrams, Shui Hu, Li Liu, Shipeng Wen, Liqun Zhang
Summary: Rapid developments in international transportation lead to increased energy and resource consumption. Minimizing rolling resistance of tires is a pressing challenge, which requires improving the interaction and dispersion of fillers. In this study, a modified graphene oxide/natural rubber composite was created by introducing a modified graphene oxide masterbatch into solution-polymerized styrene butadiene rubber. The composite exhibited superior rolling resistance, reduced energy loss, improved wear performance, and wet skid resistance, indicating a strong interface and balanced tire properties.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Chemical
Qifei Wu, Ling Liu, Junquan Meng, Shilin Liu, Jiong Hui, Xue Wang, Lin Xu, Liqun Zhang
Summary: A new strategy is proposed to improve the distribution of silica in rubber blend without using a silane coupling agent. Silica-filled epoxidized SSBR/ENR nanocomposites have better interfacial interaction and improved dispersion of silica compared to silica-filled SSBR/NR nanocomposites with Si75 as the coupling agent. The epoxy groups effectively adjust the phase selective distribution of silica. The S-ESSBR12/ENR18 nanocomposite shows the best performance, increasing wet-skid resistance by 118%, reinforcing index by 38%, abrasion resistance by 40%, and decreasing rolling resistance by 23%. These ecofriendly nanocomposites have potential application in green tire tread production.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Hao Tian, Yangyang Gao, Liqun Zhang, Haoxiang Li, Yewei Chen, Sian Xiao, Xiuying Zhao
Summary: The study focuses on predicting the viscosity of polymer nano-composites using machine learning algorithms. Non-equilibrium molecular dynamics simulation and machine learning models were used to investigate the impact of nanoparticle loading, shear rates, and temperatures on viscosity. The extreme gradient boosting model showed the highest accuracy in predicting viscosity and was used to evaluate the importance of process parameters.
JOURNAL OF PHYSICAL CHEMISTRY B
(2023)
Article
Chemistry, Physical
Mingyuan Chao, Pengju Di, Yue Yuan, Yajin Xu, Liqun Zhang, Pengbo Wan
Summary: This work successfully develops a flexible breathable electronic sensor with excellent sensing ability, good breathability, and reliable photothermal properties. By delicately assembling conductive MXene nanosheets and silver nanowires on electrospun elastomeric substrates, the sensor achieves ultrasensitive sensing of human physiological signals and wearable human-machine interaction, as well as integrated functionalities of disease diagnosis and photothermal therapy. This research provides a simple and effective method for the development of flexible breathable multifunctional electronic sensors, which can be used for long-term healthcare monitoring, ultrasensitive wearable human-machine interfacing, smart disease diagnosis, and treatment.
Article
Engineering, Biomedical
Jing-Jing Ye, Long-Fei Li, Rui-Nan Hao, Min Gong, Tong Wang, Jian Song, Qing-Han Meng, Na-Na Zhao, Fu-Jian Xu, Yuri Lvov, Li-Qun Zhang, Jia-Jia Xue
Summary: The development of a nanocomposite hydrogel with rapid release of rifampicin and excellent antibacterial ability demonstrates broad-spectrum antibacterial effects, inhibiting bacterial infection and inflammatory response, while promoting wound healing.
BIOACTIVE MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Junwei He, Qionghai Chen, Jiajun Qu, Sai Li, Zuwei Fu, Yuan Wei, Shikai Hu, Anchao Feng, Liqun Zhang, Jun Liu
Summary: In this study, a facile two-step approach was used to synthesize self-healing elastomers based on dynamic oxime-carbamate bonds. The formation of hydrogen bonds and dynamic oxime-carbamate bonds was verified through molecular dynamics simulations and experimental characterization. By increasing the hard segment content, the mechanical strength of the elastomer increased while the loss factor decreased. The self-healing behavior of the elastomer was successfully demonstrated at a certain temperature, with dynamic oxime-carbamate bonds playing a more significant role than hydrogen bonds in the mechanism.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Chenglin Li, Yi Han, Qingyuan Du, Daming Wu, Jingyao Sun, Zhao Wang, Liqun Zhang
Summary: With the rapid development of electronic equipment and communication technology, the demand for polymer composites with high thermal conductivity and mechanical properties has increased significantly. However, its nondegradable polymer matrix will inevitably bring more and more serious environmental pollution. Therefore, it is urgent to develop biodegradable thermally conductive polymer composites. In this work, biodegradable poly(butylene adipate-co-terephthalate) (PBAT) is used as the matrix material, and vacuum-assisted filtration technology is employed to prepare carbon nanotube (CNT) and cellulose nanocrystal (CNC) networks with high thermal conductivity. Then CNT-CNC/PBAT composites with high thermal conductivity and excellent mechanical properties are prepared by the ultrasonic-assisted forced infiltration method. Both experiment and simulation methods are used to systematically investigate the thermally conductive and dissipation performances of the CNT-CNC/PBAT composites. Above all, a simple alcoholysis reaction is applied to realize the separation of the PBAT matrix and functional fillers without destroying the conductive network skeleton, which makes it possible for the recycling of thermally conductive polymer composites.
Article
Polymer Science
Linru Jiang, Jingchao Li, Weizhen Zhang, Yonglai Lu, Liqun Zhang
Summary: A topological entanglement structure of molecular chains was created in silicone rubber/silica composites by introducing epoxidized silicone rubber, which significantly improved the crack propagation resistance of the composites. Adding 5 phr of 15% epoxy silicone rubber increased the tear strength and elongation at break of the silicone rubber composite by 330% and 140% respectively. This study provides a new approach for preparing silicone rubber composites with high tear resistance, expanding its application field.
EXPRESS POLYMER LETTERS
(2023)
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)
