APL Materials最新文献_第8页

Magneto-optical efficiencies combined with surface-plasmon resonance in FeSi/Au system 硅铁/金系统中与表面等离子体共振相结合的磁光效率

IF 6.1 2区材料科学

APL Materials Pub Date : 2024-06-01 DOI: 10.1063/5.0194017

Yukiko Yasukawa, Masaki Itoh, Ryo Sugita, Haruki Yamane

{"title":"Magneto-optical efficiencies combined with surface-plasmon resonance in FeSi/Au system","authors":"Yukiko Yasukawa, Masaki Itoh, Ryo Sugita, Haruki Yamane","doi":"10.1063/5.0194017","DOIUrl":"https://doi.org/10.1063/5.0194017","url":null,"abstract":"We designed and fabricated our original laminated materials that simultaneously exhibited different properties: magneto-optical (MO), i.e., the transverse MO Kerr effects (T-MOKE) and surface-plasmon resonance (SPR). The material design was composed of dielectric, magnetic, and noble-metal layers. We selected the soft-magnetic FeSi thin film as a T-MOKE magnetic layer, while an Au thin film was chosen as a SPR-source layer, creating an FeSi-/Au-based “MO-SPR material.” Strong interactions between T-MOKE and SPR were demonstrated. When the material is irradiated with a laser beam of wavelength 660 nm, at the SPR angle to the material, θR, the highest T-MOKE value was attained. The T-MOKE was markedly enhanced at θR: ∼32 to ∼84 times higher compared with the FeSi single layer (reference). The T-MOKE was amplified by a strong interaction between MO activities and electromagnetic field distributions. The FeSi (5.0 nm)/Au (14.8 nm) specimen achieved the best signal-to-noise ratio (SNR). The sample was then tested for its sensing efficiency by measuring the T-MOKE using distilled water and a glucose solution, respectively: It was possible to distinguish between two different solutions. Our MO-SPR materials utilizing both magnetism and near-field light are thus sufficiently sensitive to be applicable as sensing materials. Furthermore, the polarity of the T-MOKE signal is flipped under the application of a small, external magnetic field owing to the soft magnetism of the FeSi T-MOKE layer. This is highly advantageous to create high-frequency AC-magnetic synchronized T-MOKE sensing systems with low-power consumption.","PeriodicalId":7985,"journal":{"name":"APL Materials","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141398397","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}

引用次数: 0

Growth of ultra-flat ultra-thin alkali antimonide photocathode films 超平超薄碱锑化物光电阴极薄膜的生长

IF 6.1 2区材料科学

APL Materials Pub Date : 2024-06-01 DOI: 10.1063/5.0213461

W. G. Stam, M. Gaowei, E. Echeverria, Kenneth Evans-Lutterodt, Jean Jordan-Sweet, T. Juffmann, S. Karkare, J. Maxson, S. J. van der Molen, C. Pennington, P. Saha, J. Smedley, R. M. Tromp

引用次数: 0

Fabrication and evaluation of figures of merit of ZnO polymer-based hybrid UV photodiodes 基于氧化锌聚合物的混合紫外线光电二极管的制作和优越性评价

IF 6.1 2区材料科学

APL Materials Pub Date : 2024-06-01 DOI: 10.1063/5.0213681

K. Nagpal, E. Rauwel, Frédérique Ducroquet, Isabelle Gélard, P. Rauwel

{"title":"Fabrication and evaluation of figures of merit of ZnO polymer-based hybrid UV photodiodes","authors":"K. Nagpal, E. Rauwel, Frédérique Ducroquet, Isabelle Gélard, P. Rauwel","doi":"10.1063/5.0213681","DOIUrl":"https://doi.org/10.1063/5.0213681","url":null,"abstract":"This work reports on the fabrication of ZnO polymer-based hybrid ultraviolet (UV) photodiodes with a configuration of ITO/ZnO-nanorod/F8BT/PEDOT:PSS/Ag. The diode was fabricated by spin-coating p-type F8BT and PEDOT:PSS polymers on hydrothermally grown n-type ZnO nanorods. The growth of ZnO nanorods was carried out by varying seed layer alcohols, viz., methanol, ethanol, isopropanol, and aqueous ethanol (70% alcohol). These solvents influenced the nanorod diameter, surface coverage, and surface defects. Herein, we demonstrate that the uniformity and defects in ZnO nanorods govern the electrical properties, photoresponse, and figures of merit of the photodiodes. In particular, the photodiodes are evaluated on their rectification ratio, ideality factor (η), responsivity (R), external quantum efficiency (EQE), and response time (Tdecay). The photodiode fabricated with ZnO nanorods grown on the methanol seeding layer has demonstrated the best performance, owing to the uniform surface coverage of the nanorods. It also presented the highest rectification ratio of ∼640, a Tdecay of 108 s, a η of 2, an EQE of ∼2760%, and an R of ∼8.14 A/W at −2 V.","PeriodicalId":7985,"journal":{"name":"APL Materials","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141403098","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}

引用次数: 0

Light-induced antimicrobial activities of porphyrin derivatives as photosensitizers 作为光敏剂的卟啉衍生物的光诱导抗菌活性

IF 6.1 2区材料科学

APL Materials Pub Date : 2024-06-01 DOI: 10.1063/5.0213923

Shengman Yu, Jingwei Shi, Tingting Sun, Zhigang Xie, Liyuan Sun

引用次数: 0

Silicon (100) surface passivation-driven tuning of Ag film crystallinity and its impact on the performance of Ag/n-Si mid-infrared Schottky photodetector 硅 (100) 表面钝化驱动的银膜结晶度调整及其对 Ag/n-Si 中红外肖特基光电探测器性能的影响

IF 6.1 2区材料科学

APL Materials Pub Date : 2024-06-01 DOI: 10.1063/5.0214341

Krishna Hari Sharma, Yao-Han Dong, Po-Hsien Chiang, Zih-Chun Su, Ching-Fuh Lin

{"title":"Silicon (100) surface passivation-driven tuning of Ag film crystallinity and its impact on the performance of Ag/n-Si mid-infrared Schottky photodetector","authors":"Krishna Hari Sharma, Yao-Han Dong, Po-Hsien Chiang, Zih-Chun Su, Ching-Fuh Lin","doi":"10.1063/5.0214341","DOIUrl":"https://doi.org/10.1063/5.0214341","url":null,"abstract":"The utilization of metal/semiconductor Schottky devices for plasmonic harvesting of hot carriers holds immense potential in the field of sub-bandgap photodetection. In this work, we explore a surface passivation scheme using air plasma exposure to modify the Si (100) surface and subsequently the crystal orientation of the deposited Ag film for photon detection in the mid-infrared (MIR) regime. This tailoring was achieved by varying the plasma exposure duration (0, 150, 300, 450, and 600 s). As a result, we could tune the crystal orientation of Ag from the (200) to the (210) crystal plane, with the Ag (111) orientation present in all devices. Furthermore, the photo-response behavior under MIR exposure at λ = 4.2 µm was studied both experimentally and using COMSOL simulations. It was observed that both photoelectric (PE) and photothermal (PT) effects contributed to the photo-response behavior of all devices. The Ag/Si device exposed to air plasma for 300 s exhibited the maximum PE-driven response (2.73 µA/W), while the device exposed to air plasma for 600 s showed a significant PT-driven response (13.01 µA/W). In addition, this strategy helped reduce the reverse leakage current by up to 99.5%. This study demonstrates that MIR detection at longer wavelengths can be optimized by tailoring the crystal orientation of the metal film.","PeriodicalId":7985,"journal":{"name":"APL Materials","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141394303","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}

引用次数: 0

Relationship between structure and charge/orbital order in epitaxial single layer Ruddlesden–Popper manganite thin films 外延单层 Ruddlesden-Popper 锰矿薄膜的结构与电荷/轨道之间的关系

IF 6.1 2区材料科学

APL Materials Pub Date : 2024-06-01 DOI: 10.1063/5.0208123

Christoph Flathmann, Tobias Meyer, U. Ross, Annika Dehning, Christian Jooss, M. Seibt

{"title":"Relationship between structure and charge/orbital order in epitaxial single layer Ruddlesden–Popper manganite thin films","authors":"Christoph Flathmann, Tobias Meyer, U. Ross, Annika Dehning, Christian Jooss, M. Seibt","doi":"10.1063/5.0208123","DOIUrl":"https://doi.org/10.1063/5.0208123","url":null,"abstract":"Ruddlesden–Popper manganites are strongly correlated, quasi two-dimensional systems with highly tunable functional properties, which can, for example, be controlled by composition, strain, and defects. Praseodymium calcium manganite is a particularly interesting Ruddlesden–Popper system due to its remarkably high temperature at which ordering phenomena set in, enabling correlation physics above room temperature. However, in order to utilize the correlation phenomena and the quasi-two-dimensionality of the Ruddlesden–Popper systems for applications, one needs to grow thin film junctions, making it necessary to control the structure–property relation of Ruddlesden–Popper thin films. Here, we present a cryogenic transmission electron microscopy study of praseodymium calcium manganite thin films, deposited on niobium doped strontium titanate substrates, where we analyze the structure of the manganite thin film, as well as the effect of the epitaxial strain and defects on the charge/orbital order of the system. We identify a structural phase transition above the onset of charge/orbital order, frequently occurring extended defects and the temperature dependence and spatial distribution of charge/orbital ordering in the film. Our results show in detail the relationships between strain/defects and properties of the ordered phases and thus give important insights into how to tailor the functional properties of thin film junctions of strongly correlated materials.","PeriodicalId":7985,"journal":{"name":"APL Materials","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141397575","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}

引用次数: 0

Flexible water-resistant bamboo-like perovskite-embedded polymer nano/microfibers exhibiting Fabry–Pérot lasing 显示法布里-佩罗激光的柔性防水竹节状包覆过氧化物聚合物纳米/微纤维

IF 6.1 2区材料科学

APL Materials Pub Date : 2024-06-01 DOI: 10.1063/5.0200465

Hsin-Ming Cheng, You-Jia Pang, Chia-Kai Lin, Sheng‐Chan Wu, Bo-Zhu You, Jung‐Yao Chen, Hsu-Cheng Hsu

引用次数: 0

Duality of a coiled phononic crystal enables reflectionless interfaces 盘绕声子晶体的双重性实现了无反射界面

IF 6.1 2区材料科学

APL Materials Pub Date : 2024-06-01 DOI: 10.1063/5.0200887

C. L. Willey, V. Chen, A. Juhl

{"title":"Duality of a coiled phononic crystal enables reflectionless interfaces","authors":"C. L. Willey, V. Chen, A. Juhl","doi":"10.1063/5.0200887","DOIUrl":"https://doi.org/10.1063/5.0200887","url":null,"abstract":"Recently, it has been demonstrated that one-dimensional bar-based phononic crystals can exhibit subwavelength Bragg bandgaps by coiling the bars and locking the nodal rotational degrees of freedom to create what is termed a coiled phononic crystal (CPnC) [C. L. Willey et al., Phys. Rev. Appl. 18, 014035 (2022)]. Here, it is shown that the CPnC exhibits duality of its dispersion curves relative to its coiling/twist angle, meaning that the dispersion curves are symmetric about a particular coiling/twist angle defined configuration. An exciting implication of this finding is that under a certain set of constraints, segments of dual unit cells with perpendicular wave propagation directions can be connected such that their wave transmission is equivalent to a finite CPnC entirely composed of identical unit cells with parallel wave propagation directions. The ability to link unit cells with different wave propagation orientations, but the same dispersion/dynamic stiffness, is used to create an elastic hierarchically coiled phononic crystal based on a fractal space-filling curve design. The novelty of this work is that it numerically demonstrates reflectionless wave propagation in large fractal architectures (created from specific combinations of dual unit cells) such that regular phononic properties (i.e., passbands and bandgaps) are preserved, allowing for propagation of broadband signals and filtering.","PeriodicalId":7985,"journal":{"name":"APL Materials","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141405358","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}

引用次数: 0

High-temperature insulating ferromagnetic state in charge-disproportionated and spin-state-disproportionated strained SrCoO2.5 thin film 电荷不成比例和自旋态不成比例应变 SrCoO2.5 薄膜中的高温绝缘铁磁态

IF 6.1 2区材料科学

APL Materials Pub Date : 2024-05-30 DOI: 10.1063/5.0188767

Sourav Chowdhury, Anupam Jana, Ritu Rawat, Priyanka Yadav, Rajibul Islam, Fei Xue, A. K. Mandal, Sumit Sarkar, Rajan Mishra, R. Venkatesh, D. M. Phase, R. J. Choudhary

{"title":"High-temperature insulating ferromagnetic state in charge-disproportionated and spin-state-disproportionated strained SrCoO2.5 thin film","authors":"Sourav Chowdhury, Anupam Jana, Ritu Rawat, Priyanka Yadav, Rajibul Islam, Fei Xue, A. K. Mandal, Sumit Sarkar, Rajan Mishra, R. Venkatesh, D. M. Phase, R. J. Choudhary","doi":"10.1063/5.0188767","DOIUrl":"https://doi.org/10.1063/5.0188767","url":null,"abstract":"Ferromagnetic insulators (FMIs) have widespread applications in microwave devices, magnetic tunneling junctions, and dissipationless electronic and quantum-spintronic devices. However, the sparsity of the available high-temperature FMIs has led to the quest for a robust and controllable insulating ferromagnetic state. Here, we present compelling evidence of modulation of the magnetic ground state in a SrCoO2.5 (SCO) thin film via strain engineering. The SCO system is an antiferromagnetic insulator with a Neel temperature, TN, of ∼550 K. Applying in-plane compressive strain, the SCO thin film reveals an insulating ferromagnetic state with an extraordinarily high Curie temperature, TC, of ∼750 K. The emerged ferromagnetic state is associated with charge-disproportionation (CD) and spin-state-disproportionation (SSD), involving high-spin Co2+ and low-spin Co4+ ions. The density functional theory calculation also produces an insulating ferromagnetic state in the strained SCO system, consistent with the CD and SSD, which is associated with the structural ordering in the system. Transpiring the insulating ferromagnetic state through modulating the electronic correlation parameters via strain engineering in the SCO thin film will have a significant impact in large areas of modern electronic and spintronic applications.","PeriodicalId":7985,"journal":{"name":"APL Materials","volume":null,"pages":null},"PeriodicalIF":6.1,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141191523","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}

引用次数: 0

Reciprocal space x-ray computed tomography 对等空间 X 射线计算机断层扫描

IF 6.1 2区材料科学

APL Materials Pub Date : 2024-05-30 DOI: 10.1063/5.0203995

Arturas Vailionis, Liyan Wu, Jonathan E. Spanier

引用次数: 0