APL MaterialsPub Date : 2024-07-30DOI: 10.1063/5.0217500
N. Lejeune, E. Fourneau, A. Barrera, O. Morris, O. Leonard, J. A. Arregi, C. Navau, V. Uhlíř, S. Bending, A. Palau, A. V. Silhanek
{"title":"Dimensional crossover of microscopic magnetic metasurfaces for magnetic field amplification","authors":"N. Lejeune, E. Fourneau, A. Barrera, O. Morris, O. Leonard, J. A. Arregi, C. Navau, V. Uhlíř, S. Bending, A. Palau, A. V. Silhanek","doi":"10.1063/5.0217500","DOIUrl":"https://doi.org/10.1063/5.0217500","url":null,"abstract":"Transformation optics applied to low frequency magnetic systems have been recently implemented to design magnetic field concentrators and cloaks with superior performance. Although this achievement has been amply demonstrated theoretically and experimentally in bulk 3D macrostructures, the performance of these devices at low dimensions remains an open question. In this work, we numerically investigate the non-monotonic evolution of the gain of a magnetic metamaterial field concentrator as the axial dimension is progressively shrunk. In particular, we show that in planar structures, the role played by the diamagnetic components becomes negligible, whereas the paramagnetic elements increase their magnetic field channeling efficiency. This is further demonstrated experimentally by tracking the gain of superconductor-ferromagnet concentrators through the superconducting transition. Interestingly, for thicknesses where the diamagnetic petals play an important role in the concentration gain, they also help to reduce the stray field of the concentrator, thus limiting the perturbation of the external field (invisibility). Our findings establish a roadmap and set clear geometrical limits for designing low dimensional magnetic field concentrators.","PeriodicalId":7985,"journal":{"name":"APL Materials","volume":"96 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141871637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
APL MaterialsPub Date : 2024-07-25DOI: 10.1063/5.0225336
A. Hamraoui, O. Sénépart, L. Belliard
{"title":"Complementarity between Brillouin signature and Scholte wave for controlled elasticity in fibrillated collagen medium for culture cell","authors":"A. Hamraoui, O. Sénépart, L. Belliard","doi":"10.1063/5.0225336","DOIUrl":"https://doi.org/10.1063/5.0225336","url":null,"abstract":"Modulating extracellular matrix (ECM) elasticity with fibrillar collagen offers great potential for regenerative medicine, drug discovery, and disease modeling by replicating in vivo mechanical signals. This enhances the understanding of cellular responses and fosters therapeutic innovation. However, precise ECM elasticity measurements are still lacking. This study couples time-resolved Brillouin spectroscopy and pulsed laser-induced Scholte wave generation. We measure how collagen fibrillation affects sound velocity and refractive index. These insights are advancing tissue engineering and cellular biomechanics.","PeriodicalId":7985,"journal":{"name":"APL Materials","volume":"1 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141770184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
APL MaterialsPub Date : 2024-07-25DOI: 10.1063/5.0225164
Yuanyuan Li, Fengmin Zhang, Yan Sun
{"title":"Design and synthesis of metal–organic cycles/cages (MOCs) and their applications","authors":"Yuanyuan Li, Fengmin Zhang, Yan Sun","doi":"10.1063/5.0225164","DOIUrl":"https://doi.org/10.1063/5.0225164","url":null,"abstract":"Metal–organic cycles/cages (MOCs) are a class of nanoscale molecular entities that possess distinct shapes and sizes and are designed and synthesized through the predictable integration of organic and inorganic ligands. The diverse functionalities of MOCs render them valuable in the fields of biology, chemistry, and materials. First, the cavity renders them suitable for host–guest interactions, which are subsequently employed to induce conformational changes, and this approach is particularly advantageous for catalysis, sensing, and controlled loading and release. Furthermore, MOC- and polymer-based aggregates can be applied in biomedical research and cascaded light-harvesting systems. Benefiting from the high specific surface area, the initial exploration of MOC-based hierarchical assemblies indicates their potential applications in biomedicine and catalysis. MOC-based microsheets and centimeter films can be used for dual-mode catalysis and novel wound dressing for nonhealing wounds. In addition, the design and synthesis of novel MOCs with different shapes and sizes through various strategies are discussed. We summarized the latest progress in the past 5 years in this Review.","PeriodicalId":7985,"journal":{"name":"APL Materials","volume":"67 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141770257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
APL MaterialsPub Date : 2024-07-24DOI: 10.1063/5.0220110
Grégoire Magagnin, Jordan Bouaziz, Martine Le Berre, Sara Gonzalez, Damien Deleruyelle, Bertrand Vilquin
{"title":"Comparative performance of fluorite-structured materials for nanosupercapacitor applications","authors":"Grégoire Magagnin, Jordan Bouaziz, Martine Le Berre, Sara Gonzalez, Damien Deleruyelle, Bertrand Vilquin","doi":"10.1063/5.0220110","DOIUrl":"https://doi.org/10.1063/5.0220110","url":null,"abstract":"Over the last fifteen years, ferroelectric (FE) and antiferroelectric (AFE) ultra-thin films based on fluorite-structured materials have drawn significant attention for a wide variety of applications requiring high integration density. AFE ZrO2, in particular, holds significant promise for nanosupercapacitors, owing to its potential for high energy storage density (ESD) and high efficiency (η). This work assesses the potential of high-performance Hf1−xZrxO2 thin films encapsulated by TiN electrodes that show linear dielectric (LD), FE, and AFE behavior. A wake-up effect is observed for AFE ZrO2, a phenomenon barely reported for pure zirconium oxide and AFE materials in general, correlated with the disappearance of the pinched hysteresis loop commonly observed for Zr-doped HfO2 thin films. ESD and η are compared for FE, AFE, and LD samples at the same electrical field (3.5 MV/cm). As expected, ESD is higher for the FE sample (95 J/cm3), but η is ridiculously small (≈55%) because of the opening of the FE hysteresis curve, inducing high loss. Conversely, LD samples exhibit the highest efficiency (nearly 100%), at the expense of a lower ESD. AFE ZrO2 thin film strikes a balance between FE and LD behavior, showing reduced losses compared to the FE sample but an ESD as high as 52 J/cm3 at 3.5 MV/cm. This value can be further increased up to 84 J/cm3 at a higher electrical field (4.0 MV/cm), with an η of 75%, among the highest values reported for fluorite-structured materials, offering promising perspectives for future optimization.","PeriodicalId":7985,"journal":{"name":"APL Materials","volume":"46 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141770259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
APL MaterialsPub Date : 2024-07-24DOI: 10.1063/5.0206165
Beatriz Sisniega, Roberto Fernández de Luis, Jon Gutiérrez, Alfredo García-Arribas
{"title":"Magnetoelastic resonators functionalized with metal–organic framework water harvesters as wireless humidity sensors","authors":"Beatriz Sisniega, Roberto Fernández de Luis, Jon Gutiérrez, Alfredo García-Arribas","doi":"10.1063/5.0206165","DOIUrl":"https://doi.org/10.1063/5.0206165","url":null,"abstract":"Relative humidity is a crucial parameter in several fields, such as air quality monitoring, food storage, or control of industrial processes. In this study, we propose a wireless humidity sensor based on magnetoelastic resonance sensors functionalized with Metal–Organic Frameworks (MOFs). Different MOF water harvesters were tested as sensor active coatings: MOF-801, MOF-808, UiO-66-NH2, Al-Fumarate, and CAU-23. Their water absorption capacity and overall performance, when integrated into the sensors, were evaluated. As expected, the selected MOFs showed promising water harvesting capacity, enabling a successful sensor response to humidity in a wide range of relative humidity: 3%–85%. These humidity sensors showed a great sensitivity, stability, and selectivity to water molecules. The response time of the devices was around 15 s, with stabilization and recovery times in adsorption and desorption processes of less than 1 min for certain ranges of operation. In addition to the satisfactory behavior as humidity sensors, magnetoelastic resonators have emerged as a promising tool for the characterization of the dynamic adsorption capacity of MOF materials, as they easily provide a quantitative measure of the water mass adsorbed by the material.","PeriodicalId":7985,"journal":{"name":"APL Materials","volume":"54 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141770258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
APL MaterialsPub Date : 2024-07-23DOI: 10.1063/5.0211178
Dongyeol Ju, Hyeonseung Ji, Jungwoo Lee, Sungjun Kim
{"title":"Effect of neural firing pattern on NbOx/Al2O3 memristor-based reservoir computing system","authors":"Dongyeol Ju, Hyeonseung Ji, Jungwoo Lee, Sungjun Kim","doi":"10.1063/5.0211178","DOIUrl":"https://doi.org/10.1063/5.0211178","url":null,"abstract":"The implementation of reservoir computing using resistive random-access memory as a physical reservoir has attracted attention due to its low training cost and high energy efficiency during parallel data processing. In this work, a NbOx/Al2O3-based memristor device was fabricated through a sputter and atomic layer deposition process to realize reservoir computing. The proposed device exhibits favorable resistive switching properties (>103 cycle endurance) and demonstrates short-term memory characteristics with current decay. Utilizing the controllability of the resistance state and its variability during cycle repetition, electrical pulses are applied to investigate the synapse-emulating properties of the device. The results showcase the functions of potentiation and depression, the coexistence of short-term and long-term plasticity, excitatory post-synaptic current, and spike-rate dependent plasticity. Building upon the functionalities of an artificial synapse, pulse spikes are categorized into three distinct neural firing patterns (normal, adapt, and boost) to implement 4-bit reservoir computing, enabling a significant distinction between “0” and “1.”","PeriodicalId":7985,"journal":{"name":"APL Materials","volume":"61 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141770261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
APL MaterialsPub Date : 2024-07-23DOI: 10.1063/5.0219223
Yun Yang, Lei Jia, Ziheng Wang, Jie Suo, Xiaorui Yang, Shuping Xue, Yingying Zhang, Hui Li, Tingting Cai
{"title":"Flexible arch-shaped triboelectric sensor based on 3D printing for badminton movement monitoring and intelligent recognition of technical movements","authors":"Yun Yang, Lei Jia, Ziheng Wang, Jie Suo, Xiaorui Yang, Shuping Xue, Yingying Zhang, Hui Li, Tingting Cai","doi":"10.1063/5.0219223","DOIUrl":"https://doi.org/10.1063/5.0219223","url":null,"abstract":"Efficient monitoring and recognition of movement are crucial in enhancing athletic performance. Traditional methods have limitations in terms of high site requirements and power consumption, making them unsuitable for long-term tracking and monitoring. A potential solution to low-power monitoring of body area networks is triboelectric sensors. However, the current analysis method for badminton triboelectric sensing data is relatively simple, while flexible, triboelectric sensors based on 3D printing face issues such as discomfort when joints are bent or twisted in a large range. In light of this, a flexible arch-shaped triboelectric sensor based on 3D printing (FA-Sensor) is proposed. By combining neural network algorithms with the signal acquisition module and the master computer, an intelligent multi-sensor node system for badminton monitoring is established. The FA-Sensor exhibits high sensitivity to bending and twisting motions due to its elastic TPE shell and arched shape design. It minimizes interference with human motion during bending (10°–150°) or twisting (20°–100°) over a wide range. The peak output voltage of the FA-Sensor demonstrates a clear functional relationship with the bending angle, exhibiting piecewise sensitivities of 7.98 and 29.28 mV/°, respectively. For seven different parts of the human body, it can be quickly customized to different sizes, with stable and repeatable response outputs. In application, the badminton sports monitoring system enables real-time feedback and recognition of four typical technical movements, achieving a recognition accuracy rate of 97.2%. The system enables athletes to analyze and enhance badminton technology while also exhibiting promising potential for application in other intelligent sports domains.","PeriodicalId":7985,"journal":{"name":"APL Materials","volume":"24 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141770260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"High-quality Ge1−xSnx (x = 0–0.11) realized by UHV-CVD using Ge2H6 and SnCl4: Materials growth, structural/optical properties, and prototype IR photodetectors","authors":"Changjiang Xie, Yue Li, Zhengjie Wu, Songsong Wu, Yixin Wang, Guangyang Lin, Cheng Li, Hui Cong, Chi Xu, Chunlai Xue","doi":"10.1063/5.0213230","DOIUrl":"https://doi.org/10.1063/5.0213230","url":null,"abstract":"GeSn materials with Sn contents ranging between 0% and 11% have been successfully grown by using Ge2H6 and SnCl4 in a hot-wall UHV-CVD system at low reaction pressures of 0.2–0.4 Torr. Both fully strained and partially relaxed materials have been produced. It was found that the materials were of high crystallinity as evidenced by few threading dislocations from cross-sectional TEM. Photoluminescence studies have shown that the PL spectra shift to longer wavelengths, and the PL intensity increases exponentially as the Sn contents increase. The photoemission cutoff for a 9.5% Sn sample is beyond 2600 nm, and low temperature PL measurements have confirmed that this sample is already in the direct gap material regime. Prototype photoconductor devices were fabricated with a partially strained 5% Sn sample, showing much smaller dark currents and similar spectral coverage as compared to a fully strained 7.8% Sn device reported in the literature. The reported technical route has provided a new path toward high quality, low cost GeSn epitaxy, and will contribute to the development of group IV optoelectronics.","PeriodicalId":7985,"journal":{"name":"APL Materials","volume":"25 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141784985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Patterning luminescent and stable perovskite-acrylic polymer composites via a convenient strategy","authors":"Jinxin Guo, Jing Wang, Shuang Chen, Peige Tong, Yifei Liu, Yiwei Zhang, Xinping Zhang","doi":"10.1063/5.0223656","DOIUrl":"https://doi.org/10.1063/5.0223656","url":null,"abstract":"Perovskite semiconductors have achieved great success during the last decades in the application of solar cells, light-emitting diodes, and photodiodes. Developing strategies to pattern perovskites with high-resolution is crucial to broaden the application scenarios of perovskite displays and on-chip lighting. However, the widely used lithography procedure has the problem of high-cost and complexity. In this study, we demonstrate a method to pattern a luminescent perovskite-acrylic polymer composite that is prepared by direct injection at room temperature. This strategy uses standard photoresists and UV lithography at room temperature, and then the pattern in the photoresists can be easily transferred to the perovskite-acrylic polymer composite. Finally, we can obtain high-quality micron-scale features. Furthermore, we demonstrate the universality of this strategy by adapting perovskite with different color emissions into the composite and patterning it using the same procedure. Another advantage of this patternable perovskite-acrylic polymer composite is its superb water-repellent properties, which are believed to be of great potential in underwater applications.","PeriodicalId":7985,"journal":{"name":"APL Materials","volume":"9 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141739983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
APL MaterialsPub Date : 2024-07-19DOI: 10.1063/5.0221353
Muhammad Arif, Junaid Riaz, Amina Bibi, Hongran Yang, Ting Zhu
{"title":"Enhancing supercapacitor energy density by TiN–ZnS composites unveiled as a promising electrode","authors":"Muhammad Arif, Junaid Riaz, Amina Bibi, Hongran Yang, Ting Zhu","doi":"10.1063/5.0221353","DOIUrl":"https://doi.org/10.1063/5.0221353","url":null,"abstract":"This work describes a low-cost wet chemical synthesis technique to produce TiN–ZnS nanocomposites suitable for high energy density supercapacitors. Ti, Zn, N, and S elements in the synthesized materials were verified using comprehensive morphological, structural, and surface chemical investigations. Due to improved electric conductivity and electroactivity, this TiN–ZnS nanocomposite electrode exhibited excellent capacitance and charge transport kinetics, outperforming individual TiN and ZnS electrodes in electrochemical performance. The TiN–ZnS || MnO2 electrode configuration in an asymmetric supercapacitor system exhibited a high energy density of 74.13 Wh kg−1 and an exceptional power density of 7648 W kg−1 at a current density of 9 A g−1. The TiN–ZnS electrode also showed a remarkable retention rate of 96.8% even after 10 000 cycles. This work highlights the potential of the TiN–ZnS composite as a high-performance electrode for supercapacitors.","PeriodicalId":7985,"journal":{"name":"APL Materials","volume":"19 1","pages":""},"PeriodicalIF":6.1,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141739729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}