Article
Chemistry, Multidisciplinary
Christopher A. Dirdal, Karolina Milenko, Anand Summanwar, Firehun T. Dullo, Paul C. V. Thrane, Oana Rasoga, Andrei M. Avram, Adrian Dinescu, Angela M. Baracu
Summary: In order to use metasurfaces in industrial applications, scalable and cost-effective fabrication techniques are needed to produce large-area patterns with sub-100 nm resolution. We demonstrate the use of UV-Nanoimprint Lithography and Deep Reactive Ion Etching (Bosch and Cryogenic) for this purpose. We describe robust processes for fabricating silicon rectangular pillars with high pattern fidelity. Metasurface lenses are fabricated to demonstrate the quality of the structures, achieving diffraction limited focusing and high efficiency for specific wavelengths. We also develop a process to smooth the characteristic sidewall surface roughness and show that it does not adversely affect the optical performance of the metasurface lenses.
Article
Biophysics
Abdullah-Bin Siddique, Arunkumar Shanmugasundaram, Jong Yun Kim, Amir Roshanzadeh, Eung-Sam Kim, Bong-Kee Lee, Dong-Weon Lee
Summary: Due to their immature morphology and functional immaturity, cardiomyocytes have limited use as an in vitro disease model of the native heart. Mechanical stimulation and nano-groove patterns have been found to promote structural development and contractile activity in cardiomyocytes. The stretching mechanisms of the circular diaphragm may contribute to the formation of natural myocardium.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Physics, Applied
Ian Geiger, Jian Luo, Enrique J. Lavernia, Penghui Cao, Diran Apelian, Timothy J. Rupert
Summary: Refractory multi-principal element alloys with excellent mechanical properties at elevated temperatures have attracted increasing attention. This study investigates the segregation trends and underlying structural and chemical driving factors in the grain boundaries of NbMoTaW alloys using atomistic simulations. The complex interplay between local grain boundary structure and chemical short-range ordering is highlighted, suggesting tunable segregation and chemical ordering by tailoring the grain boundary structure in multi-principal element alloys.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Bo Zhang, Ansila Mathoor, Tanja Junkers
Summary: Describes an automated high-throughput multidimensional reaction screening platform based on an inline Fourier-transform infrared spectroscopy. The platform combines flow chemistry, machine automation, and inline analysis to rapidly and efficiently screen reactions in multiple dimensions. It enables the construction of kinetic data libraries with high precision, reproducibility, and data density. The method allows for precise prediction of reaction outcomes within the high-dimensional chemical parameter space that is screened, and is a key step in providing big data for data-driven research.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Multidisciplinary Sciences
Dong Liu, Qin Yu, Saurabh Kabra, Ming Jiang, Paul Forna-Kreutzer, Ruopeng Zhang, Madelyn Payne, Flynn Walsh, Bernd Gludovatz, Mark Asta, Andrew M. Minor, Easo P. George, Robert O. Ritchie
Summary: This study found that CrCoNi alloy displays exceptional crack growth toughness at 20 Kelvin, with high crack-initiation fracture toughness values and crack growth toughness values. The crack-tip deformation structures at 20 K involve nucleation and restricted growth of stacking faults, fine nanotwins, and transformed epsilon martensite, with coherent interfaces.
Article
Multidisciplinary Sciences
Rui Feng, Chuan Zhang, Michael C. Gao, Zongrui Pei, Fan Zhang, Yan Chen, Dong Ma, Ke An, Jonathan D. Poplawsky, Lizhi Ouyang, Yang Ren, Jeffrey A. Hawk, Michael Widom, Peter K. Liaw
Summary: The study introduces a high-throughput computational method to design precipitation-strengthened lightweight high-entropy alloys for elevated-temperature applications. By integrating experimental and theoretical understanding, the accuracy of the thermodynamic database is improved, accelerating the discovery of advanced structural materials. This approach proves to be efficient and useful in screening promising high-entropy alloys for high-temperature applications.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Karolina Milenko, Firehun Tsige Dullo, Paul C. V. Thrane, Zeljko Skokic, Christopher A. Dirdal
Summary: A novel SERS platform was developed using UV-NIL to produce large-area, ordered nanostructured arrays. The use of imprinted resist patterns allowed for overcoming the limitations of common SERS platforms, resulting in improved uniformity, reproducibility, throughput, and cost-effectiveness. C-shaped plasmonic nanostructures were simulated and fabricated, exhibiting high signal enhancement at an excitation wavelength of 785 nm. The functionality of the SERS substrates was validated through the measurement of Rhodamine 6G SERS spectra.
Article
Metallurgy & Metallurgical Engineering
Zhang Baicheng, Zhang Wenlong, Qu Xuanhui
Summary: Additive manufacturing, as a new manufacturing technology, has revolutionized the aerospace, transportation, and biomedicine fields. However, there is still room for improvement in the use of traditional alloys in additive manufacturing, especially for high-energy beam processing. The trial-and-error approach in material development of additive manufacturing also hampers the development of high-performance materials. This paper discusses the challenges and problems in additive manufacturing of steel, titanium alloys, and aluminum alloys, and explores the application of high-throughput preparation and characterization technologies for material development and design. It also presents the prospects and challenges of high-throughput preparation and characterization technology in additive manufacturing and proposes futuristic directions for key material development and composition optimization.
ACTA METALLURGICA SINICA
(2023)
Article
Nanoscience & Nanotechnology
Tian Liu, Xiaonong Cheng, Hengnan Ding, Leli Chen, Qian Wang, Di Zhang, Rui Luo
Summary: The effect of strain on the microtexture and recrystallization of the GH4169 alloy was investigated using EBSD. The strain gradually increases from the edge to the center of the compressed sample, leading to increased recrystallization. The generation of new sigma 3 boundaries within the DRX grains affects the deformation microstructure, resulting in a decrease in the overall maximum intensity of the microtexture.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Biotechnology & Applied Microbiology
Mariana N. Sao Pedro, Tiago C. Silva, Rohan Patil, Marcel Ottens
Summary: Continuous manufacturing is seen as an indicator of a maturing industry, with significant breakthroughs in continuous biomanufacturing over the past decade and regulatory agencies encouraging its implementation. Despite progress in cost reduction and speed through high-throughput process development (HTPD), reliable HTPD technology for integrated and continuous biomanufacturing is still lacking.
BIOTECHNOLOGY AND BIOENGINEERING
(2021)
Article
Engineering, Electrical & Electronic
Jianjun Pan, Wei Hou, Liangying Wang, Hanyang Lv
Summary: This paper proposes a high-precision continuous deformation monitoring method based on ultra-weak fiber Bragg grating (FBG) array sensing technology. By monitoring the wavelength shift difference in real-time, the relative deformation between monitoring nodes and the absolute deformation of all nodes can be obtained. The method has the advantages of good linearity, high sensitivity, and temperature insensitivity.
OPTICAL FIBER TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Jieke Jiang, Gary Shea, Prasansha Rastogi, Tom Kamperman, Cornelis H. Venner, Claas Willem Visser
Summary: This study demonstrates in-air polymerization of liquid jets as a novel platform to produce microparticles and microfibers with tunable size, shape, and composition at high throughput; the size, morphology, and local chemistry of micromaterials can be independently controlled, enabling rapid fabrication of stimuli-responsive Janus fibers and high-throughput printing of microlenses; this combination of rapid processing and tunability opens a new route toward applications of tailored micromaterials in various fields.
ADVANCED MATERIALS
(2021)
Article
Computer Science, Information Systems
Yunhe Wang, Ka-Chun Wong, Xiangtao Li
Summary: A multiobjective robust continuous clustering algorithm (MORCC) is proposed to discriminate different cell types in a single-cell RNA-seq dataset. By applying dimensionality reduction and optimizing connectivity weights, MORCC demonstrates superior clustering ability.
INFORMATION SCIENCES
(2022)
Review
Materials Science, Multidisciplinary
Hosni Idrissi, Philippe Carrez, Patrick Cordier
Summary: This paper reviews the work on amorphization under mechanical stress. In addition to pressure, the role of deviatoric or shear stresses is emphasized. The most recent studies show that amorphization is considered as a distinct deformation mechanism, particularly under extreme conditions (shocks, deformations under high stresses, high strain-rates).
CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Jing Zhou, Jianghe Feng, Hao Li, Duo Liu, Guojuan Qiu, Feng Qiu, Juan Li, Zhong-Zhen Luo, Zhigang Zou, Rong Sun, Ruiheng Liu
Summary: The carrier concentration in n-type Bi2Te3-based thermoelectric material is stabilized by high-energy refinement and hot-pressing, combined with SbI3 doping and hot deformation, resulting in optimized carrier concentration and high texture degree. The peak figure of merit (zT) of 1.14 is achieved for Bi2Te2.7Se0.3 + 0.05 wt.% SbI3 sample with a bending strength of 100 Mpa. Additionally, a thermoelectric cooling device consisting of n-type Bi2Te2.7Se0.3 + 0.05 wt.% SbI3 and commercial p-type Bi0.5Sb1.5Te3 legs generates a large maximum temperature difference (Delta T-max) of 85 K at a hot-side temperature of 343 K.
Article
Polymer Science
Sung Ho Lee, Hyun Woo Song, Han Jun Park, Moon Kyu Kwak
Summary: A switchable dry adhesive inspired by gecko feet, with high adhesion and easy detachment capabilities, is proposed in this study. The adhesive is able to reversibly recover from a deformed state to its initial shape, showing great potential in advanced glass transfer applications.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Sung Ho Lee, Bong Su Kang, Moon Kyu Kwak
Summary: This study introduces a magneto-responsive actuating surface that can control both the wettability and optical transmittance of surfaces. By applying magnetic force, the water contact angle and optical transmittance can be controlled, and a sliding angle control system is implemented. The interesting characteristics of this study are expected to have wide applications in fields such as optics, surface self-cleaning systems of solar cells, and smart windows.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Minsu Kang, Minho Seong, Donghyuk Lee, Seong Min Kang, Moon Kyu Kwak, Hoon Eui Jeong
Summary: A programmable self-assembly strategy is developed to create highly ordered artificial nanocilia actuators using magnetic nanoparticles. The nanocilia exhibit field-responsive motion through rolling and sliding between assembled nanoparticles.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Jeong Dae Kim, Hyunsik Choi, Kwangjun Kim, Hyoungseok Chae, Hoon Yi, Myeong Hee Jeong, Nayeong Lee, Minyoung Lee, Min Cheol Kim, Ji Won Suk, Kyu-Tae Lee, Hoon Eui Jeong, Jong G. Ok
Summary: In this study, a solution-processable Ag nanostructure (SPAN) fabrication protocol is presented for the production of thin metallic nanoarchitectures with tunable optical and electrical properties. The SPAN film demonstrates strong adhesion to various materials and can be fabricated in a scalable, vacuum-free manner. By adjusting the parameters such as Ag ink concentration, coating speed, and annealing temperature, the morphology, porosity, and properties of the SPAN film can be easily controlled. The SPAN architecture shows potential applications in transparent and flexible conducting electrodes as well as electronic textiles.
APPLIED MATERIALS TODAY
(2022)
Article
Optics
Joohoon Kim, Dong Kyo Oh, Hongyoon Kim, Gwanho Yoon, Chunghwan Jung, Jaekyung Kim, Trevon Badloe, Hyunjung Kang, Seokwoo Kim, Younghwan Yang, Jihae Lee, Byoungsu Ko, Jong G. Ok, Junsuk Rho
Summary: This study demonstrates a high-efficiency hologram fabrication method using nanomanufacturing techniques, showing record high theoretical efficiency at a single wavelength and high efficiency over a broad wavelength range. The method offers high throughput and low cost, which could accelerate the practical application of metasurface holography.
LASER & PHOTONICS REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Deblina Biswas, Jeongmin Heo, Pilgyu Sang, Prasanta Dey, Kayoung Han, Jong Hwan Ko, Sang Min Won, Donghee Son, Minah Suh, Hyung Sik Kim, Jong G. Ok, Hui Joon Park, Hyoung Won Baac
Summary: This study proposes a micro-ultrasonic diagnosis technique using an all-optical ultrasound-based spectral sensing (AOUSS) method for sensitive and quantitative characterization of early stage and whole blood coagulation. By detecting and analyzing minute viscoelastic variations of blood, the technique enables the assessment of early stage clot formation with high sensitivity. The results show strong agreement with conventional rheometry tests and suggest potential clinical significance.
Article
Optics
Incheol Jung, Hyeonwoo Kim, Seunghyun Oh, Hojae Kwak, Seongcheol Ju, Misuk Kim, Jong Hoon Jung, Hyoung Won Baac, Jong G. Ok, Kyu-Tae Lee
Summary: Understanding optical interference in multilayer structures is crucial for designing optical coatings used in various applications. By studying a cavity structure with a transparent dielectric medium surrounded by two metals, we show that the reflective properties transition from a valley to a peak when a metal is present on the incident side. This transition occurs due to destructive and constructive interference of the reflected light, depending on the refractive index and extinction coefficient of the metal. Furthermore, we investigate the admittance and electric field distribution of the cavity structure with different constituent metals. Our findings provide valuable insights into the fundamental principles of optical cavities and have the potential to expand future applications.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Anwesha Saha, Taigao Ma, Haozhu Wang, L. Jay Guo
Summary: Decorative chrome plating is widely used for attractive metal finishings, but it is hazardous to workers and harmful to the environment. To overcome these issues, we propose a multilayer thin film structure that mimics chrome appearance and achieve additional functionalities beyond decoration using a reinforcement learning algorithm. Experimental results show indistinguishable chrome color and validate the effectiveness of the inverse design approach.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Yun Zhang, Wei-Jie Feng, Wenkai Zhu, Xiwei Shan, Wei-Kuan Lin, L. Jay Guo, Tian Li
Summary: We demonstrate a universally applicable coloration strategy for polymer-based radiative cooling materials by nanoimprinting. By modulating light interference with periodic structures on polymer surfaces, specular colors can be induced while maintaining the hemispheric optical responses of radiative cooling polymers. The retrofit strategy is exemplified by four different polymer films with a minimum impact on optical responses compared to the pristine films. The potential roll-to-roll manufacturing empowers a scalable, low-cost, and easy-retrofitting solution for colored radiative cooling films.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Dokyung Kyeong, Minsu Kim, Moonkyu Kwak
Summary: The temperature-sensitive properties of shape-memory polymers (SMPs) and the display characteristics of diffractive optical elements (DOEs) are combined to create an optical temperature sensing film. By imprinting the micropatterns of DOEs on an SMP film, the temperature information can be obtained through changes in far-field diffraction images. This technique can be used to create compact and reliable optical temperature indicators for temperature-sensitive industries such as food and pharmaceuticals.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Multidisciplinary Sciences
Sunghak Choi, Bongsu Kang, Eunhye Yang, Keesung Kim, Moon Kyu Kwak, Pahn-Shick Chang, Ho-Sup Jung
Summary: Different sizes of homogeneous liposomes were prepared using flow rate ratios in ethanol and isopropyl alcohol. The liposomes formed in ethanol were smaller, while those formed in isopropyl alcohol were larger and more poly-dispersed. The membrane rigidity also played a critical role in determining the liposome size.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Biomedical
Jennie J. Paik, Boonjae Jang, Sunghyun Nam, L. Jay Guo
Summary: This study presents a physically crosslinked poly(vinyl alcohol) (PVA)-based hydrogel that acts as a transparent strain-sensing skin adhesive for motion monitoring. By incorporating Zn2+ into the ice-templated PVA gel, a dense amorphous structure is observed, allowing the material to stretch up to 800% strain. Fabrication in a binary glycerol:water solvent results in electrical resistance in the k omega range, a gauge factor of 0.84, and ionic conductivity on the scale of 10(-4) S cm(-1), making it a promising low-cost candidate for stretchable electronic materials. The study also investigates the relationship between improved electrical performance and polymer-polymer interactions using spectroscopic techniques.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Wei-Jie Feng, Chengang Ji, L. Jay Guo
Summary: A full solution-based method is presented for fabricating multilayer thin film stacks for structural color applications, avoiding the need for high vacuum processes. Copper/silicon dioxide/copper (Cu/SiO2/Cu) and copper/titanium dioxide/copper (Cu/TiO2/Cu) are chosen as the model system due to their simple structure and tunable color. A systematic investigation is conducted to ensure good film quality and compatibility with previous layers. The manipulation of dielectric thickness and top Cu morphology on different substrates allows for the achievement of both primary and secondary colors.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Wei-Jie Feng, Yian Cheng, L. Jay Guo
Summary: This paper presents a new approach to understanding the spectral behavior of a Fabry-Perot-type trilayer stack for subtractive structural color using temporal coupled mode analysis. The cavity-based analysis can accurately fit reflection spectra and predict color chromaticity, even without considering material dispersion. The research shows that maximizing both absorptive and radiative decay rates, while matching them, is the key to producing the most chromatic color.
Review
Nanoscience & Nanotechnology
Danyan Wang, Zeyang Liu, Haozhu Wang, Moxin Li, L. Jay Guo, Cheng Zhang
Summary: Recent years have seen rapid development in the field of structural coloration, which is generated from the interaction of nanostructures with light. Compared to traditional color generation methods, structural coloration offers unique advantages in terms of spatial resolution, operational stability, environmental friendliness, and multiple functionality. This review discusses the recent developments in structural coloration based on layered thin films and optical metasurfaces. It covers the fundamentals of color science, physical mechanisms for structural color generation, optimization methods for efficient structure parameter searching, fabrication techniques for large-scale and low-cost manufacturing, device designs for dynamic displaying, and diverse applications in printing, sensing, and advanced photovoltaics.
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)
