当前期刊: APL Materials Go to current issue    加入关注    本刊投稿指南
显示样式:        排序: IF: - GO 导出
我的关注
我的收藏
您暂时未登录!
登录
  • Ti3C2TxMXene for wearable energy devices: Supercapacitors and triboelectric nanogenerators
    APL Mater. (IF 3.819) Pub Date : 2020-11-02
    Sanghee Nam; Jong-Nam Kim; Saewoong Oh; Jaehwan Kim; Chi Won Ahn; Il-Kwon Oh

    A family of two-dimensional (2D) transition metal carbides and/or nitrides, the so-called MXenes, has been discovered and investigated for advanced energy devices with outstanding performances. The outstanding physical and chemical properties of MXenes with 2D layered structures, high mechanical strength, metallic electrical conductivity, sufficient surface functional groups, hydrophilic nature, high

    更新日期:2020-12-01
  • Research progress of MXenes-based wearable pressure sensors
    APL Mater. (IF 3.819) Pub Date : 2020-11-04
    Dandan Lei; Nishuang Liu; Tuoyi Su; Luoxin Wang; Jun Su; Zhi Zhang; Yihua Gao

    Flexible wearable pressure sensors can maintain their sensing capability when any deformation occurs, which possess ponderance in the realms of electronic skin, man–machine interaction, medical diagnosis, and human motion detection. Two-dimensional (2D) layered-structured materials of early transition metal carbides and carbonitrides, named MXenes, own fascinating character due to mechanical flexibility

    更新日期:2020-12-01
  • DNA origami directed fabrication of shape-controllable nanomaterials
    APL Mater. (IF 3.819) Pub Date : 2020-11-11
    Fengsong Liu; Yingxu Shang; Zhaoran Wang; Yunfei Jiao; Na Li; Baoquan Ding

    Precise control over the morphologies of nanomaterials is of great importance in nanoscience, as the properties of nanomaterials are strongly dependent on their size, shape, and composition. Taking advantage of the strict base-pairing principle, DNA origami provides a simple way of fabricating complex architectures with nanoscale precision. DNA origami nanostructures have exhibited great potential

    更新日期:2020-12-01
  • Ferroic orders in two-dimensional transition/rare-earth metal halides
    APL Mater. (IF 3.819) Pub Date : 2020-11-19
    Ming An; Shuai Dong

    Since the discovery of graphene, two-dimensional materials with atomic level thickness have rapidly grown to be a prosperous field of physical science with interdisciplinary interest for their fascinating properties and broad applications. Very recently, the experimental observation of ferromagnetism in a Cr2Ge2Te6 bilayer and a CrI3 monolayer opened a door to pursue long-absent intrinsic magnetic

    更新日期:2020-12-01
  • Detectors—The ongoing revolution in scanning transmission electron microscopy and why this important to material characterization
    APL Mater. (IF 3.819) Pub Date : 2020-11-04
    Ian MacLaren; Thomas A. Macgregor; Christopher S. Allen; Angus I. Kirkland

    Detectors are revolutionizing possibilities in scanning transmission electron microscopy because of the advent of direct electron detectors that record at a high quantum efficiency and with a high frame rate. This allows the whole back focal plane to be captured for each pixel in a scan and the dataset to be processed to reveal whichever features are of interest. There are many possible uses for this

    更新日期:2020-12-01
  • DNA origami nanorulers and emerging reference structures
    APL Mater. (IF 3.819) Pub Date : 2020-11-10
    Michael Scheckenbach; Julian Bauer; Jonas Zähringer; Florian Selbach; Philip Tinnefeld

    The DNA origami technique itself is considered a milestone of DNA nanotechnology and DNA origami nanorulers represent the first widespread application of this technique. DNA origami nanorulers are used to demonstrate the capabilities of techniques and are valuable training samples. They have meanwhile been developed for a multitude of microscopy methods including optical microscopy, atomic force microscopy

    更新日期:2020-12-01
  • Pressing challenges of halide perovskite thin film growth
    APL Mater. (IF 3.819) Pub Date : 2020-11-19
    Tatiana Soto-Montero; Wiria Soltanpoor; Monica Morales-Masis

    The adoption of new thin-film materials in high-end technologies, such as monolithic tandem solar cells and integrated circuits, demands fabrication processes that allow a high level of control over film properties such as thickness, conformality, composition, and crystal structure. Achieving this with traditional optoelectronic materials, such as silicon, indium phosphide, gallium arsenide, silicon

    更新日期:2020-12-01
  • Unraveling the electronic structure, mechanical, and dielectric properties of ZnPurBr-MOF:Ab initiocalculations
    APL Mater. (IF 3.819) Pub Date : 2020-11-02
    Neng Li; Kwaw Blankson; Yufei Yang; Peng Zhang; Xiujian Zhao

    A novel nanocrystalline metal–organic framework (MOF), ZnPurBr, was recently discovered to undergo an unusual thermal solid–solid phase transition, resulting in a stable high-temperature phase structure, ZnPurBr-HT. In order to fully elucidate this fascinating phase transition, the structural, electronic, optical, and mechanical properties of the ZnPurBr high and low temperature phases are thoroughly

    更新日期:2020-12-01
  • Photoemission electron microscopy of magneto-ionic effects in La0.7Sr0.3MnO3
    APL Mater. (IF 3.819) Pub Date : 2020-11-04
    Marek Wilhelm; Margret Giesen; Tomáš Duchoň; Marco Moors; David N. Mueller; Johanna Hackl; Christoph Baeumer; Mai Hussein Hamed; Lei Cao; Hengbo Zhang; Oleg Petracic; Maria Glöß; Stefan Cramm; Slavomír Nemšák; Carsten Wiemann; Regina Dittmann; Claus M. Schneider; Martina Müller

    Magneto-ionic control of magnetism is a promising route toward the realization of non-volatile memory and memristive devices. Magneto-ionic oxides are particularly interesting for this purpose, exhibiting magnetic switching coupled to resistive switching, with the latter emerging as a perturbation of the oxygen vacancy concentration. Here, we report on electric-field-induced magnetic switching in a

    更新日期:2020-12-01
  • The influence of lattice defects, recombination, and clustering on thermal transport in single crystal thorium dioxide
    APL Mater. (IF 3.819) Pub Date : 2020-11-04
    Cody A. Dennett; Zilong Hua; Amey Khanolkar; Tiankai Yao; Phyllis K. Morgan; Timothy A. Prusnick; Narayan Poudel; Aaron French; Krzysztof Gofryk; Lingfeng He; Lin Shao; Marat Khafizov; David B. Turner; J. Matthew Mann; David H. Hurley

    Thermal transport is a key performance metric for thorium dioxide in many applications where defect-generating radiation fields are present. An understanding of the effect of nanoscale lattice defects on thermal transport in this material is currently unavailable due to the lack of a single crystal material from which unit processes may be investigated. In this work, a series of high-quality thorium

    更新日期:2020-12-01
  • Atomic imprinting in the absence of an intrinsic length scale
    APL Mater. (IF 3.819) Pub Date : 2020-11-04
    Chao Zhou; Amit Datye; Zheng Chen; Georg H. Simon; Xinzhe Wang; Jan Schroers; Udo D. Schwarz

    Bulk metallic glasses (BMGs) have successfully been used to replicate molds that are structured at the nano- and even atomic scale through thermoplastic forming (TPF), an ability that was speculated to be rooted in the glass’ featureless atomic structure. These previous demonstrations of atomically precise imprinting, however, were performed under conditions where mold atomic feature dimensions coincided

    更新日期:2020-12-01
  • Photosensitivity of Ga2O3Schottky diodes: Effects of deep acceptor traps present before and after neutron irradiation
    APL Mater. (IF 3.819) Pub Date : 2020-11-05
    E. B. Yakimov; A. Y. Polyakov; I. V. Shchemerov; N. B. Smirnov; A. A. Vasilev; P. S. Vergeles; E. E. Yakimov; A. V. Chernykh; A. S. Shikoh; F. Ren; S. J. Pearton

    The photocurrent produced by 259 nm wavelength excitation was measured in β-Ga2O3 Schottky diodes before and after neutron irradiation. These samples differed by the density of deep acceptors in the lower half of the bandgap as detected by capacitance–voltage profiling under monochromatic illumination. Irradiation led to a very strong increase in photocurrent, which closely correlated with the increase

    更新日期:2020-12-01
  • Optoelectronic properties of ultrathin ALD silicon nitride and its potential as a hole-selective nanolayer for high efficiency solar cells
    APL Mater. (IF 3.819) Pub Date : 2020-11-05
    Edris Khorani; Shona McNab; Tudor E. Scheul; Tasmiat Rahman; Ruy S. Bonilla; Stuart A. Boden; Peter R. Wilshaw

    Fully exploiting the power conversion efficiency limit of silicon solar cells requires the use of passivating contacts that minimize electrical losses at metal/silicon interfaces. An efficient hole-selective passivating contact remains one of the key challenges for this technology to be deployed industrially and to pave the way for adoption in tandem configurations. Here, we report the first account

    更新日期:2020-12-01
  • Anomalous Hall effect and negative longitudinal magnetoresistance in half-Heusler topological semimetal candidates TbPtBi and HoPtBi
    APL Mater. (IF 3.819) Pub Date : 2020-11-10
    O. Pavlosiuk; P. Fałat; D. Kaczorowski; P. Wiśniewski

    Half-Heusler compounds have attracted significant attention because of their topologically non-trivial electronic structure, which leads to unusual electron transport properties. We thoroughly investigated the magnetotransport properties of high-quality single crystals of two half-Heusler phases, TbPtBi and HoPtBi, in pursuit of the characteristic features of topologically non-trivial electronic states

    更新日期:2020-12-01
  • Effect of antiferromagnetic order on topological electronic structure in Eu-substituted Bi2Se3single crystals
    APL Mater. (IF 3.819) Pub Date : 2020-11-10
    Soo-Whan Kim; Hoil Kim; Jeong-Kyu Kim; Woo-Suk Noh; Jinsu Kim; Kyoung-Min Kim; Ki-Seok Kim; Jun Sung Kim; Jae-Hoon Park; Myung-Hwa Jung

    Topological antiferromagnetic spintronics is an emerging field due to advantages such as no stray field effect and high-speed dynamics. In bismuth chalcogenide topological insulators, the coexistence of long-range antiferromagnetic order and topologically protected states has scarcely been observed. Here, an antiferromagnetic order, which sets in the direction of magnetic moments perpendicular to the

    更新日期:2020-12-01
  • Accelerated design of photovoltaic Ruddlesden–Popper perovskite Ca6Sn4S14−xOxusing machine learning
    APL Mater. (IF 3.819) Pub Date : 2020-11-16
    Junjie Hu; Chenxi Wang; Qianhong Li; Rongjian Sa; Peng Gao

    Ruddlesden–Popper (R–P) phase layered chalcogenide perovskites had attracted broad interest as potential lead-free high-performance photovoltaic absorbers. Ca3Sn2S7 is a graphene-like RP phase perovskite with a ultrahigh carrier mobility and a more significant absorption coefficient in the visible light region than those of the classic hybrid halide perovskite MAPbI3. However, the ultra-low direct

    更新日期:2020-12-01
  • Autonomous materials synthesis by machine learning and robotics
    APL Mater. (IF 3.819) Pub Date : 2020-11-18
    Ryota Shimizu; Shigeru Kobayashi; Yuki Watanabe; Yasunobu Ando; Taro Hitosugi

    Future materials-science research will involve autonomous synthesis and characterization, requiring an approach that combines machine learning, robotics, and big data. In this paper, we highlight our recent experiments in autonomous synthesis and resistance minimization of Nb-doped TiO2 thin films. Combining Bayesian optimization with robotics, these experiments illustrate how the required speed and

    更新日期:2020-12-01
  • Enhanced spin–orbit torque efficiency in Pt/Co/Ho heterostructures via inserting Ho layer
    APL Mater. (IF 3.819) Pub Date : 2020-11-20
    Tianli Jin; Wai Cheung Law; Durgesh Kumar; Feilong Luo; Qi Ying Wong; Gerard Joseph Lim; Xuan Wang; Wen Siang Lew; S. N. Piramanayagam

    Spin–orbit torque (SOT) is a promising approach to manipulate the magnetization for high-performance spintronic applications. In conventional SOT heterostructures with heavy metal (HM)/ferromagnet layers, the SOT efficiency is determined by the charge-to-spin conversion, characterized by the spin Hall angle θSH of the HM layer. Researchers have investigated various HMs with different θSH to enhance

    更新日期:2020-12-01
  • Magnetization reversal signatures of hybrid and pure Néel skyrmions in thin film multilayers
    APL Mater. (IF 3.819) Pub Date : 2020-11-20
    Nghiep Khoan Duong; Riccardo Tomasello; M. Raju; Alexander P. Petrović; Stefano Chiappini; Giovanni Finocchio; Christos Panagopoulos

    We report a study of magnetization reversals and skyrmion configurations in two systems, Pt/Co/MgO and Ir/Fe/Co/Pt multilayers, where magnetic skyrmions are stabilized by a combination of dipolar and Dzyaloshinskii–Moriya interactions (DMIs). The First Order Reversal Curve (FORC) diagrams of low-DMI Pt/Co/MgO and high-DMI Ir/Fe/Co/Pt exhibit stark differences, which are identified by micromagnetic

    更新日期:2020-12-01
  • Tetrahedral framework nucleic acids as an advanced drug delivery system for oligonucleotide drugs
    APL Mater. (IF 3.819) Pub Date : 2020-10-13
    Yuhao Liu; Zhiqiang Liu; Weitong Cui; Yanjing Li; Xin Qin; Mei Zhang; Yunfeng Lin

    Nucleic acid therapy has played a promising role in the treatment of many diseases, such as cancer, infections, immune diseases, and neurodegenerative diseases. However, its application is still limited mainly because of poor cell-entry performance and low resistance to in vivo degradation. Tetrahedral framework nucleic acids (tFNAs) have shown potential in delivering low-molecular-weight drugs owing

    更新日期:2020-10-30
  • Electronic interface and charge carrier density in epitaxial graphene on silicon carbide. A review on metal–graphene contacts and electrical gating
    APL Mater. (IF 3.819) Pub Date : 2020-10-26
    Sofia Aslanidou; Alberto García-García; Philippe Godignon; Gemma Rius

    For over 15 years, the number of studies on graphene electronics has not ceased growing. The rich physics, a set of outstanding properties, and the envisioned range of potential applications have consolidated graphene as a research field in its own. In this Research Update, we address a specific case of graphene for electronics, epitaxial graphene on silicon carbide (SiC) substrates. This paper mainly

    更新日期:2020-10-30
  • Durable strategies for perovskite photovoltaics
    APL Mater. (IF 3.819) Pub Date : 2020-10-27
    Chong Dong; Zhao-Kui Wang; Liang-Sheng Liao

    Perovskite solar cells have experienced a flying enhancement in their efficiency, which presents great potentiality in the photovoltaic industry. However, perovskite (PVSK) degradation is a serious problem for viable and sustainable commercialization. Apart from the intrinsic structural instability, PVSK materials are apt to be influenced by the environment including electrical and chemical situations

    更新日期:2020-10-30
  • Lead-free halide perovskite photovoltaics: Challenges, open questions, and opportunities
    APL Mater. (IF 3.819) Pub Date : 2020-10-05
    Vincenzo Pecunia; Luigi G. Occhipinti; Abhisek Chakraborty; Yiting Pan; Yueheng Peng

    In recent years, lead-free metal-halide perovskite photovoltaics has attracted ever-growing attention, in view of its potential to replicate the outstanding properties of lead-halide perovskite photovoltaics, but without the toxicity burden of the latter. Despite a research effort much smaller in scale than that pursued with lead-based perovskites, considerable progress has been achieved in lead-free

    更新日期:2020-10-30
  • Nanopipettes—The past and the present
    APL Mater. (IF 3.819) Pub Date : 2020-10-06
    John Stanley; Nader Pourmand

    Nanopipettes, characterized by nanoscale sized pores and simple fabrication techniques, are of increasing scientific interest due to their application in a variety of fields, including analytical chemistry, nanophysiology, molecular diagnostics, and cellular biology. Nanopipettes have been extensively used for the development of electrochemical biosensors, as they offer the combined advantage of nanoscale

    更新日期:2020-10-30
  • Dynamic excitations of chiral magnetic textures
    APL Mater. (IF 3.819) Pub Date : 2020-10-12
    Martin Lonsky; Axel Hoffmann

    Spin eigenexcitations of skyrmions and related chiral magnetic textures have attracted considerable interest over the recent years owing to their strong potential for applications in information processing and microwave devices. The emergence of novel material systems, such as synthetic ferrimagnets and antiferromagnets, the continuing progress in microfabrication and nanofabrication techniques, and

    更新日期:2020-10-30
  • Epitaxial and quasiepitaxial growth of halide perovskites: New routes to high end optoelectronics
    APL Mater. (IF 3.819) Pub Date : 2020-10-12
    Lili Wang; Isaac King; Pei Chen; Matthew Bates; Richard R. Lunt

    Motivated by the exciting properties of metal halide perovskites in photovoltaic applications, there is an evolving need to further explore the limitations of this class of materials in broader fields and high end optoelectronics, which requires better control over the film structure, defect levels, and quality. Epitaxial growth has been ubiquitously deployed in the semiconducting industry. This affords

    更新日期:2020-10-30
  • Optimization of printed sensors to monitor sodium, ammonium, and lactate in sweat
    APL Mater. (IF 3.819) Pub Date : 2020-10-15
    Alla M. Zamarayeva; Natasha A. D. Yamamoto; Anju Toor; Margaret E. Payne; Caleb Woods; Veronika I. Pister; Yasser Khan; James W. Evans; Ana Claudia Arias

    We describe the optimization of a flexible printed electrochemical sensing platform to monitor sodium ion (Na+), ammonium ion (NH4+), and lactate in human sweat. We used previously reported material systems and adapted them to scalable fabrication techniques. In the case of potentiometric Na+ and NH4+ sensors, ion-selective electrodes (ISEs) required minimum optimization beyond previously reported

    更新日期:2020-10-30
  • Bioelectronics with graphene nanostructures
    APL Mater. (IF 3.819) Pub Date : 2020-10-28
    Daniel San Roman; Raghav Garg; Tzahi Cohen-Karni

    Bioelectronic devices enable fundamental physiological and electrophysiological research, healthcare monitoring, and advanced therapeutics. To meet the demanding device requirements imposed by biomedical applications, graphene-based electronics offer a promising alternative to conventional bioelectronic device materials in an all-carbon platform. Continued advancements in graphene nanostructure synthesis

    更新日期:2020-10-30
  • α-(AlxGa1−x)2O3single-layer and heterostructure buffers for the growth of conductive Sn-dopedα-Ga2O3thin films via mist chemical vapor deposition
    APL Mater. (IF 3.819) Pub Date : 2020-10-01
    Giang T. Dang; Shota Sato; Yuki Tagashira; Tatsuya Yasuoka; Li Liu; Toshiyuki Kawaharamura

    A third generation mist chemical vapor deposition (3rd G mist CVD) system was used to grow six single-layer and two heterostructure α-(AlxGa1−x)2O3 buffers on c-plane sapphire substrates for the subsequent deposition of conductive Sn-doped α-Ga2O3 (Sn:α-Ga2O3) thin films. In the six single-layer buffers, the Al contents x increased from 0 to 0.66. The two heterostructure buffers consisted of six ∼20-nm-

    更新日期:2020-10-30
  • Mixed bulky cations for efficient and stable Ruddlesden−Popper perovskite solar cells
    APL Mater. (IF 3.819) Pub Date : 2020-10-01
    Jishan Shi; Xing Jin; Youzhi Wu; Ming Shao

    2D Ruddlesden–Popper perovskite solar cells (PSCs) with structure formulated as R2MAn−1PbnI3n+1 (R is the organic bulky cation) exhibit superior environmental stability, but their efficiency still lags behind that of their 3D counterpart, which is mainly limited by the insufficient light absorption and carrier transportation. Herein, we incorporated guanidinium (GA+) into the PEA at the “R” site to

    更新日期:2020-10-30
  • Percolation and nanosecond fluctuators in V2O3films within the metal–insulator transition
    APL Mater. (IF 3.819) Pub Date : 2020-10-01
    Liyang Chen; Panpan Zhou; Yoav Kalcheim; Ivan K. Schuller; Douglas Natelson

    Vanadium sesquioxide (V2O3) exhibits a metal–insulator transition (MIT) at 160 K between a low temperature, monoclinic, antiferromagnetic Mott insulator and a high temperature, rhombohedral, paramagnetic, metallic phase. In thin films, a percolative transition takes place over a finite temperature range of phase coexistence. We study the fluctuating dynamics of this percolative MIT by measuring voltage

    更新日期:2020-10-30
  • Engineering control circuits for molecular robots using synthetic biology
    APL Mater. (IF 3.819) Pub Date : 2020-10-12
    Ting-Yen Wei; Warren C. Ruder

    The integration of molecular robots and synthetic biology allows for the creation of sophisticated behaviors at the molecular level. Similar to the synergy between bioelectronics and soft robotics, synthetic biology provides control circuitry for molecular robots. By encoding perception-action modules within synthetic circuits, molecular machines can advance beyond repeating tasks to the incorporation

    更新日期:2020-10-30
  • Stretchable bioelectronics: Mitigating the challenges of the percolation threshold in conductive elastomers
    APL Mater. (IF 3.819) Pub Date : 2020-10-12
    Alexey Novikov; Josef Goding; Christopher Chapman; Estelle Cuttaz; Rylie A. Green

    Conductive polymer (CP)–elastomer composites have been proposed as an alternative to the metals conventionally used for bioelectronic devices. Being softer and more stretchable than metals such as platinum and gold, they can mitigate the adverse effects associated with mechanical mismatch and fatigue failure. Such composites are conventionally made by embedding CP particles inside an elastomeric matrix

    更新日期:2020-10-30
  • Mechanical and acoustic properties of a hybrid organic–inorganic perovskite, TMCM-CdCl3, with large piezoelectricity
    APL Mater. (IF 3.819) Pub Date : 2020-10-14
    Tian-Meng Guo; Fei-Fei Gao; Zhi-Gang Li; Yiming Liu; Mei-Hui Yu; Wei Li

    Piezoelectric hybrid organic–inorganic perovskites have attracted significant attention due to their outstanding piezoelectricity comparable to perovskite oxides. However, their elastic properties, which determine the piezoelectric performance, have not yet been explored. Here, the elastic properties of a perovskite ferroelectric TMCM-CdCl3 (TMCM = trimethylchloromethyl ammonium) with a large piezoelectric

    更新日期:2020-10-30
  • In situx-ray and electron scattering studies of oxide molecular beam epitaxial growth
    APL Mater. (IF 3.819) Pub Date : 2020-10-14
    Xi Yan; Friederike Wrobel; Yan Li; Hua Zhou; Huan-hua Wang; Anand Bhattacharya; Jirong Sun; Hawoong Hong; Dillon D. Fong

    We perform in situ synchrotron x-ray ray diffraction (SXRD)/reflection high energy electron diffraction (RHEED) studies on the growth of complex oxide thin films by molecular beam epitaxy. The unique deposition chamber, located at the Advanced Photon Source, allows the preparation of complex oxide samples with monolayer precision and facilitates the formation of direct correlations between in situ

    更新日期:2020-10-30
  • Anisotropic, meandering domain microstructure in the improper ferroelectric CsNbW2O9
    APL Mater. (IF 3.819) Pub Date : 2020-10-19
    Shane J. McCartan; Patrick W. Turner; Jason A. McNulty; Jesi R. Maguire; Conor J. McCluskey; Finlay D. Morrison; J. Marty Gregg; Ian MacLaren

    The improper ferroelectric CsNbW2O9 has recently been highlighted as the first material outside the manganite family to exhibit a similar meandering, sixfold domain structure to that responsible for enhanced and diminished conduction at charged domain walls in the rare earth manganites. While there is no current evidence for variation in domain wall conduction relative to bulk in CsNbW2O9, the similarities

    更新日期:2020-10-30
  • Machine learning depinning of dislocation pileups
    APL Mater. (IF 3.819) Pub Date : 2020-10-20
    Mika Sarvilahti; Audun Skaugen; Lasse Laurson

    We study a one-dimensional model of a dislocation pileup driven by an external stress and interacting with random quenched disorder, focusing on the predictability of the plastic deformation process. Upon quasistatically ramping up the externally applied stress from zero, the system responds by exhibiting an irregular stress–strain curve consisting of a sequence of strain bursts, i.e., critical-like

    更新日期:2020-10-30
  • Electrically driven transient and permanent phase transformations in highly strained epitaxial BiFeO3thin films
    APL Mater. (IF 3.819) Pub Date : 2020-10-20
    Hyeon Jun Lee; Jeongyong Kim; Seung Hyun Hwang; Hyeokmin Choe; Semen Gorfman; Yeong-Jae Heo; Su Yong Lee; Pierre-Eymeric Janolin; Igor Kornev; Tobias U. Schülli; Carsten Richter; Joo-Hyoung Lee; Ullrich Pietsch; Chan-Ho Yang; Ji Young Jo

    Electric-field-driven phase transformation phenomena in multiferroic BiFeO3 are directly linked to the functionalities of electronic devices based on multiferroic materials. Understanding how the transformation evolves at the nanoscale under the influence of an electric field will provide fascinating insights into key parameters that utilize the transformation features. Here, we report both the electric-field-driven

    更新日期:2020-10-30
  • Soft peripheral nerve interface made from carbon nanotubes embedded in silicone
    APL Mater. (IF 3.819) Pub Date : 2020-10-20
    Korkut Terkan; Francisco Zurita; Touba Jamal Khalaf; Philipp Rinklin; Tetsuhiko Teshima; Tobias Kohl; Bernhard Wolfrum

    Electrodes for interfacing implantable electronics and neural tissue are of great importance to gain a better understanding of the nervous system and to help people suffering from impaired body functions due to nerve lesions or lost organ functionality. In particular, neurostimulation techniques for bioelectronic medicine rely on the development of mechanically and electrochemically stable electrodes

    更新日期:2020-10-30
  • Biostable conductive nanocomposite for implantable subdermal antenna
    APL Mater. (IF 3.819) Pub Date : 2020-10-26
    Franky Curry; Andrew M. Chrysler; Tasmia Tasnim; Jill E. Shea; Jayant Agarwal; Cynthia M. Furse; Huanan Zhang

    Current antennas used for communication with implantable medical devices are connected directly to the titanium device enclosure, but these enclosures are shrinking as batteries and circuits become smaller. Due to shrinking device size, a new approach is needed that allows the antenna to extend beyond the battery pack, or to be entirely separate from it. Softer properties are needed for antennas in

    更新日期:2020-10-30
  • Proton conduction in inkjet-printed reflectin films
    APL Mater. (IF 3.819) Pub Date : 2020-10-26
    Yujia Lu; Preeta Pratakshya; Atrouli Chatterjee; Xiaoteng Jia; David D. Ordinario; Long Phan; Juana A. Cerna Sanchez; Rylan Kautz; Vivek Tyagi; Priyam Patel; Yegor Van Dyke; MyAnh K. Dao; Justin P. Kerr; James Long; Alex Allevato; Jessica Leal-Cruz; Eric Tseng; Ethan R. Peng; Andrew Reuter; Justin Couvrette; Samantha Drake; Fiorenzo G. Omenetto; Alon A. Gorodetsky

    Biomolecular proton conducting materials have been touted as promising for seamlessly and directly interfacing natural biological systems with traditional artificial electronics. As such, proton conduction has been explored for a variety of protein- and polypeptide-based materials. Within this context, cephalopod structural proteins called reflectins have demonstrated several favorable properties,

    更新日期:2020-10-30
  • Recent advancements in the study of intrinsic magnetic topological insulators and magnetic Weyl semimetals
    APL Mater. (IF 3.819) Pub Date : 2020-09-08
    Wei Ning; Zhiqiang Mao

    The studies of topological insulators (TI) and topological semimetals have been at frontiers of condensed matter physics and material science. Both classes of materials are characterized by robust surface states created by the topology of the bulk band structures and exhibit exotic transport properties. When magnetism is present in topological materials and breaks the time-reversal symmetry, more exotic

    更新日期:2020-10-02
  • Deformation-induced silicon nanostructures
    APL Mater. (IF 3.819) Pub Date : 2020-09-22
    Fanning Meng; Zhenyu Zhang; Peili Gao; Durgaiah Chevella; Tingting Liu

    Silicon (Si) has been widely used in advanced energy technologies including solar cells and secondary batteries because of its unique properties. However, up to now, the highest conversion efficiency of solar cells for silicon is just over 26%. Furthermore, during charge–discharge cycles, the Si voluminal expansion has been considered seriously, which greatly reduces the cycle life of the solar cell

    更新日期:2020-10-02
  • Review on smart strategies for achieving highly efficient ternary polymer solar cells
    APL Mater. (IF 3.819) Pub Date : 2020-09-22
    Miao Zhang; Jian Wang; Xiaoling Ma; Jinhua Gao; Chunyu Xu; Zhenghao Hu; Lianbin Niu; Fujun Zhang

    Ternary polymer solar cells (PSCs) have been widely demonstrated as an effective method to improve device performance. Meanwhile, the simple fabrication technology can be well kept with a single bulk heterojunction active layer, which is beneficial to the potential industrialization of PSCs. The photovoltaic parameters, such as short-circuit current density, open-circuit voltage, and fill factor, of

    更新日期:2020-10-02
  • Surface electronic structure and dynamics of lead halide perovskites
    APL Mater. (IF 3.819) Pub Date : 2020-09-24
    Daniel Niesner

    A number of studies investigating the electronic structure of well-defined lead halide perovskite surfaces have emerged in the last five years. Surfaces and their interfaces can not only have considerable effects on the performance of devices such as solar cells but also open a window into the intrinsic electronic properties of lead halide perovskites. This is particularly true for angle-resolved photoelectron

    更新日期:2020-10-02
  • Flexoelectricity in thin films and membranes of complex oxides
    APL Mater. (IF 3.819) Pub Date : 2020-09-22
    Daesu Lee

    Flexoelectricity describes the generation of electric polarization in response to inhomogeneous strain, i.e., strain gradient, in all dielectrics. Importantly, strain gradients are inversely scaled to the material dimension so that more prominent and exotic phenomena can be envisioned at the nanoscale, based on flexoelectricity. In particular, in complex oxides, such a large lattice inhomogeneity can

    更新日期:2020-10-02
  • Self-assembled three-dimensional macroscopic graphene/MXene-based hydrogel as electrode for supercapacitor
    APL Mater. (IF 3.819) Pub Date : 2020-09-09
    Luojiang Zhang; Siu Wing Or

    Hydrogels with unique three-dimensional (3D) macroscopic porous architectures are attractive electrode materials for supercapacitors because of their superior electrolyte permeabilities and rapid electron/ion transports. In this letter, a cylindrical-type 3D macroscopic graphene/MXene-based hydrogel (GMH) is prepared by self-assembling laminar-structured graphene oxide (GO) and MXene (Ti3C2) nanosheets

    更新日期:2020-10-02
  • Electrochemical impedance spectroscopy of human cochleas for modeling cochlear implant electrical stimulus spread.
    APL Mater. (IF 3.819) Pub Date : 2020-09-01
    C Jiang,S R de Rijk,G G Malliaras,M L Bance

    Cochlear implants (CIs) have tremendously helped people with severe to profound hearing loss to gain access to sound and oral–verbal communication. However, the electrical stimulus in the cochlea spreads easily and widely, since the perilymph and endolymph (i.e., intracochlear fluids) are essentially electrolytes, leading to an inability to focus stimulation to discrete portions of the auditory nerve

    更新日期:2020-10-02
  • Transient-doped organic electrochemical transistors working in current-enhancing mode as sensing devices for low concentration of oxygen dissolved in solution
    APL Mater. (IF 3.819) Pub Date : 2020-09-01
    Francesco Decataldo; Isacco Gualandi; Marta Tessarolo; Erika Scavetta; Beatrice Fraboni

    Dissolved oxygen in cell culture media represents an interesting parameter worth monitoring, especially at very low concentrations. Indeed, cells grow faster and live longer in hypoxic conditions, and recent studies relate stronger tumor malignancy, recurrence, and progression with reduced oxygen levels. Standard techniques for dissolved oxygen evaluation rely either on optical investigations or on

    更新日期:2020-10-02
  • Rotational self-alignment of graphene seeds for nanoribbon synthesis on Ge(001) via chemical vapor deposition
    APL Mater. (IF 3.819) Pub Date : 2020-09-03
    Austin J. Way; Vivek Saraswat; Robert M. Jacobberger; Michael S. Arnold

    The chemical vapor deposition of CH4 on Ge(001) results in the anisotropic synthesis of graphene nanoribbons that are aligned to Ge⟨110⟩ and have faceted armchair edges, sub-10 nm widths, and lengths greater than 100 nm. The utilization of small graphene seeds to initiate nanoribbon synthesis provides control over the nanoribbon placement and orientation. However, in order to exclusively grow nanoribbons

    更新日期:2020-10-02
  • First-principles surface energies for monoclinic Ga2O3and Al2O3and consequences for cracking of (AlxGa1−x)2O3
    APL Mater. (IF 3.819) Pub Date : 2020-09-09
    Sai Mu; Mengen Wang; Hartwin Peelaers; Chris G. Van de Walle

    Crack formation limits the growth of (AlxGa1−x)2O3 epitaxial films on Ga2O3 substrates. We employ first-principles calculations to determine the brittle fracture toughness of such films for three growth orientations of the monoclinic structure: [100], [010], and [001]. Surface energies and elastic constants are computed for the end compounds—monoclinic Ga2O3 and Al2O3—and used to interpolate to (AlxGa1−x)2O3

    更新日期:2020-10-02
  • Bioelectronic control of chloride ions and concentration with Ag/AgCl contacts
    APL Mater. (IF 3.819) Pub Date : 2020-09-10
    Manping Jia; Harika Dechiruji; John Selberg; Pattawong Pansodtee; Juanita Mathews; Chunxiao Wu; Michael Levin; Mircea Teodorescu; Marco Rolandi

    Translation between ionic currents and measurable electronic signals is essential for the integration of natural systems and artificial bioelectronic devices. Chloride ions (Cl−) play a pivotal role in bioelectricity, and they are involved in several brain pathologies, including epilepsy and disorders of the autistic spectra, as well as cancer and birth defects. As such, controlling [Cl−] in solution

    更新日期:2020-10-02
  • Growth and characterization of ferromagnetic Fe-doped GaSb quantum dots with high Curie temperature
    APL Mater. (IF 3.819) Pub Date : 2020-09-22
    Karumuri Sriharsha; Le Duc Anh; Yuuji Shimada; Takuji Takahashi; Masaaki Tanaka

    We report the structural and magnetic properties of the Fe-doped GaSb quantum dots (QDs) (nominal Fe concentration x = 4.7%–16.6%) grown on GaAs (001) substrates by molecular beam epitaxy. The QDs with nanometer-scale dimensions consist of two areas with different crystal structures, a zinc-blende GaAsSb wetting layer and a new phase of FeGaSb alloy that has a simple cubic lattice. The size and distribution

    更新日期:2020-10-02
  • Development of antibacterial steel surfaces through laser texturing
    APL Mater. (IF 3.819) Pub Date : 2020-09-22
    Victor M. Villapún; A. P. Gomez; W. Wei; L. G. Dover; Jonathan R. Thompson; T. Barthels; J. Rodriguez; S. Cox; S. González

    The aim of the present study was to develop novel antibacterial touch surfaces through the laser texturing optimization of stainless steel. A wide range of laser fluence (2.11 J/cm2–5.64 J/cm2) and scanning interval (10 µm–30 μm) parameters were explored. The impact of surfaces with different patterns, wettability, and oxidation states on the antimicrobial behavior of Escherichia coli K-12 and biofilm

    更新日期:2020-10-02
  • Materials genome evolution of surface plasmon resonance characteristics of Au nanoparticles decorated ZnO nanorods
    APL Mater. (IF 3.819) Pub Date : 2020-09-22
    Sheng-Che Yen; Yu-Lin Chen; Yen-Hsun Su

    The effect of surface plasmon resonance (SPR) from noble metal nanostructures such as gold nanoparticles (Au NPs) has been proposed to promote the generation of energetic hot electrons as well as boosting resonant energy transfer, thereby resulting in significantly enhancing solar-light harvesting and energy conversion efficiency. Herein, Au NPs decorated zinc oxide nanorods with plasmonic metal–semiconductor

    更新日期:2020-10-02
  • Cathodoluminescence of silicon doped aluminum nitride with scanning transmission electron microscopy
    APL Mater. (IF 3.819) Pub Date : 2020-09-22
    Matthew R. Hauwiller; David Stowe; Timothy B. Eldred; Seiji Mita; Ramon Collazo; Zlatko Sitar; James LeBeau

    Here, we apply cathodoluminescence in scanning transmission electron microscopy to infer the influence of dislocation strain fields on the formation of point defect complexes in Si doped AlN. In addition to identifying non-radiative recombination centers, tracking Si related defect emission energies reveals a red-shift at threading dislocations. We discuss these results in the context of multiple Si-vacancy

    更新日期:2020-10-02
  • Ultrahigh-performance integrated inverters based on amorphous zinc tin oxide deposited at room temperature
    APL Mater. (IF 3.819) Pub Date : 2020-09-22
    Oliver Lahr; Holger von Wenckstern; Marius Grundmann

    Recent advances in the field of integrated circuits based on sustainable and transparent amorphous oxide semiconductors (AOSs) are presented, demonstrating ultrahigh performance operating state-of-the-art integrated inverters comprising metal–semiconductor field-effect transistors (MESFETs) with amorphous zinc tin oxide (ZTO) as a channel material. All individual circuit layers have been deposited

    更新日期:2020-10-02
  • Epitaxial growth and electronic structure of Ruddlesden–Popper nickelates (Lan+1NinO3n+1,n= 1–5)
    APL Mater. (IF 3.819) Pub Date : 2020-09-22
    Z. Li; W. Guo; T. T. Zhang; J. H. Song; T. Y. Gao; Z. B. Gu; Y. F. Nie

    We report the epitaxial growth of Ruddlesden–Popper nickelates, Lan+1NinO3n+1, with n up to 5 by reactive molecular beam epitaxy. X-ray diffractions indicate high crystalline quality of these films, and transport measurements show strong dependence on the n values. Angle-resolved photoemission spectroscopy reveals the electronic structure of La5Ni4O13, showing a large hole-like pocket centered around

    更新日期:2020-10-02
  • Strong spin-dephasing in a topological insulator-paramagnet heterostructure
    APL Mater. (IF 3.819) Pub Date : 2020-09-24
    Jason Lapano; Alessandro R. Mazza; Haoxiang Li; Debangshu Mukherjee; Elizabeth M. Skoropata; Jong Mok Ok; Hu Miao; Robert G. Moore; Thomas Z. Ward; Gyula Eres; Ho Nyung Lee; Matthew Brahlek

    The interface between magnetic materials and topological insulators can drive the formation of exotic phases of matter and enable functionality through the manipulation of the strong spin polarized transport. Here, we report that the transport processes that rely on strong spin-momentum locking in the topological insulator Bi2Se3 are completely suppressed by scattering at a heterointerface with the

    更新日期:2020-10-02
  • Observation of inter-layer charge transmission resonance at optically excited graphene–TMDC interfaces
    APL Mater. (IF 3.819) Pub Date : 2020-09-22
    Ranjit Kashid; Jayanta Kumar Mishra; Avradip Pradhan; Tanweer Ahmed; Saloni Kakkar; Pranav Mundada; Preeti Deshpande; Kallol Roy; Ambarish Ghosh; Arindam Ghosh

    The transfer of charge carriers across the optically excited hetero-interface of graphene and semiconducting transition metal dichalcogenides (TMDCs) is the key to convert light to electricity, although the intermediate steps from the creation of excitons in TMDC to the collection of free carriers in the graphene layer are not fully understood. Here, we investigate photo-induced charge transport across

    更新日期:2020-10-02
Contents have been reproduced by permission of the publishers.
导出
全部期刊列表>>
ERIS期刊投稿
欢迎阅读创刊号
自然职场,为您触达千万科研人才
spring&清华大学出版社
城市可持续发展前沿研究专辑
Springer 纳米技术权威期刊征稿
全球视野覆盖
施普林格·自然新
chemistry
物理学研究前沿热点精选期刊推荐
自然职位线上招聘会
欢迎报名注册2020量子在线大会
化学领域亟待解决的问题
材料学研究精选新
GIANT
ACS ES&T Engineering
ACS ES&T Water
屿渡论文,编辑服务
ACS Publications填问卷
阿拉丁试剂right
苏州大学
林亮
南方科技大学
朱守非
胡少伟
有机所林亮
隐藏1h前已浏览文章
课题组网站
新版X-MOL期刊搜索和高级搜索功能介绍
ACS材料视界
上海纽约大学
浙江大学
廖矿标
天合科研
x-mol收录
试剂库存
down
wechat
bug