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Unveiling the dynamic change in the ionic conductivity of a solid-state binary mixture comprising an organic ionic plastic crystal and LiBF4 Mater. Today Phys. (IF 11.5) Pub Date : 2024-03-12 Hiroyuki Ueda, Naoto Saito, Azusa Nakanishi, Haijin Zhu, Robert Kerr, Fuminori Mizuno, Patrick C. Howlett, Maria Forsyth
The binary composites of organic ionic plastic crystals (OIPCs) and lithium salts are a promising new class of solid electrolytes for all-solid-state batteries (ASSBs). One of the primary areas of research to enable their application into battery devices is to understand their complex physicochemical features, in particular their phase behaviors in response to changing compositions and the ensuing
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Weak interatomic interactions induced low lattice thermal conductivity in 2D/2D PbSe/SnSe vdW heterostructure Mater. Today Phys. (IF 11.5) Pub Date : 2024-03-11 Shuwei Tang, Peng Ai, Shulin Bai, Da Wan, Xiaodong Li, Wanrong Guo, Tuo Zheng, Hao Wang
Inspired by the excellent thermoelectric performance of two-dimensional (2D) PbSe and SnSe monolayers, the thermal and electronic transport properties of 2D/2D PbSe/SnSe heterostructure is theoretically evaluated using first-principles calculations and Boltzmann transport theory. An indirect bandgap of 1.06 eV for the PbSe/SnSe heterostructure is calculated by the combination of Heyd-Scuseria-Ernzerhof
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Unphysical grain size dependence of lattice thermal conductivity in Mg3(Sb, Bi)2: An atomistic view of concentration dependent segregation effects Mater. Today Phys. (IF 11.5) Pub Date : 2024-03-11 Xiaofan Huang, Chengzhi Li, Minhui Yuan, Jing Shuai, Xiang-Guo Li, Yanglong Hou
Grain boundary (GB) engineering is one of the most common strategies to reduce the lattice thermal conductivity and improve thermoelectric materials. However, in the case of the promising thermoelectric material Mg(SbBi), an abnormal dependence of lattice thermal conductivity on grain size was observed at the concentration of = 0.25, where smaller grain polycrystalline materials exhibited higher lattice
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Duckweeds mimicked self-clean Janus solar evaporator Mater. Today Phys. (IF 11.5) Pub Date : 2024-03-08 Ziheng Zhan, Zhen Liu, Ciwei Wu, Yinfeng Li, Mingzhu Xie, Qing Li, Zhaolong Wang
Solar water evaporation has been considered as a promising method to solve the global water scarcity due to its low energy consumption, environmental friendly, as well as high water evaporation efficiency. However, salt crystallization on evaporation surface drastically decrease the evaporation rate of seawater. In this work, we propose a novel bionic solar evaporation system based on 3D printing technology
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High thermoelectric performance of GeTe-MnTe alloy driven by spin degree of freedom Mater. Today Phys. (IF 11.5) Pub Date : 2024-03-08 Shuailiang Chen, Yunzhe Zhong, Jianfeng Cai, Zongwei Zhang, Feng Gao, Shaohui Huo, Jiehua Wu, Chen Cui, Xiaojian Tan, Guoqiang Liu, Dong Fang, Jun Jiang
GeTe has been known as an excellent thermoelectrics, whereas its realistically application is limited by its structural phase transition near 700 K. Here, we show that the temperature of phase transition can be suppressed below 300 K by alloying 35% MnTe. The GeTe-MnTe alloy exhibits the much different transport properties from GeTe. Its room-temperature Seebeck coefficient is close to that of optimized
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Highly-selective metalation of porphyrin enabled by distinct aromatic ring-fused structures Mater. Today Phys. (IF 11.5) Pub Date : 2024-03-08 Yanghan Chen, Pengcheng Ding, Ye Sun, Lev N. Kantorovich, Flemming Besenbacher, Miao Yu
Metalation is an effective strategy for tuning the optical, magnetic, and other physical properties of porphyrins, which play an important role in material synthesis and biological activities. Multiple aromatic ring-fused structures (ARFSs) can be formed by cyclodehydrogenation from a single porphyrin compound. Understanding the various bonding forms and bond strengths of aromatic allotropes with metals
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Construction of three-dimensional porous network Fe-rGO aerogels with monocrystal magnetic Fe3O4@C core-shell structure nanospheres for enhanced microwave absorption Mater. Today Phys. (IF 11.5) Pub Date : 2024-03-07 Kunyao Cao, Weiping Ye, Yuan Fang, Yue Zhang, Rui Zhao, Weidong Xue
Single dielectric loss material has defects such as strong dielectric properties and impedance mismatch. Hence, developing electromagnetic wave (EMW) absorption materials with both outstanding EMW absorption and favourable impedance matching performances is still a great challenge. A large number of literature have reported that combining dielectric materials with magnetic materials to enhance microwave
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Heterogeneous interface engineering of bionic corn-structured ternary nanocomposites for excellent low-frequency microwave absorption Mater. Today Phys. (IF 11.5) Pub Date : 2024-03-05 Shanxin Li, Yijing Sun, Linyun Zhang, Xuzhou Jiang, Hongying Yu
Achieving strong low-frequency microwave absorption is an important research direction, and heterogeneous interface engineering is emerging as a promising strategy. In this work, drawing inspiration from corn, bionic corn-structured ternary nanocomposites were designed and prepared. The obtained CoNiO/FeO/FeO ternary nanocomposites mimic corn kernel structures, and create abundant heterogeneous interfaces
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Symmetry and magnetic direction dependent spin/valley splitting and anomalous Hall conductivity of antiferromagnetic monolayer MnPTe3 Mater. Today Phys. (IF 11.5) Pub Date : 2024-03-05 Wenzhe Zhou, Tingyu Sun, Zhenzhen Wan, Aolin Li, Yu Chen, Fangping Ouyang
Due to the time reversal symmetry breaking or spin-valley coupling, there are intrinsic valley splittings in two-dimensional magnetic materials, which are closely related to the symmetry and magnetic order. Based on MnPTe monolayers with different symmetries, we present an understanding of direction dependent spin/valley splitting and anomalous Hall conductivity from the perspective of orbital interactions
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Structural dynamics of first-order phase transition in giant magnetocaloric La(Fe,Si)13: The free energy landscape Mater. Today Phys. (IF 11.5) Pub Date : 2024-03-05 André Azevedo Beleza, Bernardo Pires, Rafael Almeida, John S.O. Evans, António M. dos Santos, Mathias Frontzek, Edmund Lovell, Benedikt Beckmann, Konstantin Skokov, Oliver Gutfleisch, João Pedro Araujo, A.M. Milinda Abeykoon, João S Amaral, João Horta Belo
Maximizing the performance of magnetic refrigerators and thermomagnetic energy harvesters is imperative for their successful implementation and can be done by maximizing their operation frequency. One of the features delimiting the frequency and efficiency of such devices is the phase transition kinetics of their magnetocaloric/thermomagnetic active material. While previous studies have described the
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High performance solar blind avalanche photodetector based on a single-crystalline ɛ-Ga2O3/BaSnO3 heterojunction Mater. Today Phys. (IF 11.5) Pub Date : 2024-03-02 Ningtao Liu, Haobo Lin, Yuxia Yang, Chang Liu, Shudong Hu, Dongyang Han, Shen Hu, Li Ji, Wenrui Zhang, Jichun Ye
Solar-blind photodetectors based on ultrawide bandgap semiconductors have attracted extensive attention due to their advantages such as ultra-low background noise and high chemical stability. In this work, for the first time we construct a high-performance avalanche photodetector (APD) based on the single crystalline ε-GaO/BaSnO epitaxial heterojunction. The device exhibits a high rectification ratio
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Unveiling future superconductors through machine learning Mater. Today Phys. (IF 11.5) Pub Date : 2024-03-01 Zihao Bai, Mangladeep Bhullar, Akinwumi Akinpelu, Yansun Yao
The recent discovery of superconductivity above 200 K in hydrides of sulfur and lanthanum under high pressure marked a significant advance toward the realization of room-temperature superconductivity. While binary hydrides have almost been completely studied theoretically, experimental evidence suggests that the next breakthrough in finding high-temperature and low-pressure limits is likely connected
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Double transition-metal MXenes: Classification, properties, machine learning, artificial intelligence, and energy storage applications Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-25 Iftikhar Hussain, Uzair Sajjad, O.J. Kewate, Umay Amara, Faiza Bibi, Abdul Hanan, Darshna Potphode, Muhammad Ahmad, Muhammad Sufyan Javed, P. Rosaiah, Sajjad Hussain, Karim Khan, Zeeshan Ajmal, S. Punniyakoti, Saleh S. Alarfaji, J.H. Kang, WailAl Zoubi, Sumanta Sahoo, Kaili Zhang
Continuous research efforts have yielded significant advancements in MXenes, particularly with the discovery of ordered double transition metal (DTM) MXenes. These DTM MXenes have expanded the MXene family by incorporating two different transition metals at the metal sites. In this review, the classification, properties, and energy storage applications of DTM MXenes have been thoroughly discussed.
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Enhancement of photodetection performance of Ga2O3/Si heterojunction solar-blind photodetector using high resistance homogeneous interlayer Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-25 Ke Tang, Lei Zhang, Keyun Gu, Haofei Huang, Zun Liu, Zilong Zhang, Jian Huang, Linjun Wang
Creating homojunctions using GaO material presents a significant challenge, primarily because of the inherent difficulty in achieving stable p-type GaO. The pn heterojunction based on n-GaO offer a promising alternative for developing solar-blind photodetectors. In this work, our strategy is to fabricate a n-GaO/p-Si heterojunction solar-blind photodetector with interface layers of high resistance
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Investigation of interfacial thermal resistance between Bi2Te3 thin films and metal electrodes via TDTR Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-24 Bing Zhao, Youyang Qu, Weiyun Zhao, Yuan Deng
A challenge on promoting thermoelectric application is the low energy conversion efficiency of thermoelectric devices. Reducing the contact thermal resistance of a thermoelectric device can improve efficiency effectively. However, study on interfacial thermal transport is lack due to the difficulty on contact thermal resistance measurement. Herein, a study on contact thermal resistance between thermoelectric
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Distinct superconducting states in the pressure-induced metallic structures of topological heterostructure BiTe Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-24 Shihao Zhu, Bangshuai Zhu, Cuiying Pei, Qi Wang, Jing Chen, Qinghua Zhang, Tianping Ying, Lin Gu, Yi Zhao, Changhua Li, Weizheng Cao, Mingxin Zhang, Lili Zhang, Jian Sun, Yulin Chen, Juefei Wu, Yanpeng Qi
The (Bi)(BiTe) homologous series possess natural multilayer heterostructure with intriguing physical properties at ambient pressure. Herein, we report the pressure-dependent evolution of the structure and electrical transport of the dual topological insulator BiTe, a member of the (Bi)(BiTe) series. With applied pressure, BiTe exhibits several different crystal structures and distinct superconducting
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Highly efficient spin-orbit torque generation in bilayer WTe2/Fe3GaTe2 heterostructure Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-24 Brahim Marfoua, Jisang Hong
The spin-orbit torque (SOT) phenomenon is crucial for advancing spintronics. Therefore, we explore the SOT efficiency in the WTe/FeGaTe heterostructure. The WTe/FeGaTe heterostructure has a ferromagnetic ground state with a perpendicular magnetic anisotropy. Through the Metropolis Monte Carlo simulations, we find that the WTe/FeGaTe heterostructure has a Curie temperature of 345 K. We also calculate
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Significant enhancement in the photoelectronic properties of SnI4 via pressure-tailored phase engineering Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-24 Ruihong Lu, Zonglun Li, Lei Yue, Liying Song, Sixue Fang, Tingyu Liu, Pengfei Shen, Quanjun Li, Xilian Jin, Bingbing Liu
Constantly developing superior functional materials with fascinating photoelectric properties is crucial for advancing the optoelectronics industry. Here, we demonstrate a feasible strategy to significantly improve the photoelectric properties of SnI through employing high pressure phase engineering. With increasing pressure, the photocurrent response of SnI undergoes sequential enhancement and the
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Embedded-machine learning and soft, flexible sensors for wearable devices - viewing from an AI engineer Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-23 Chi Cuong Vu
Sensor technology, whose primary function is to represent the interaction between humans and the surrounding world, has become a core feature of many electronic products in the past decades. Among them, flexible sensors are attracting many studies because of their superior properties compared to traditional sensors, such as thinness, lightness, or ease of integration on different surfaces. However
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Ionic thermoelectric materials: Innovations and challenges Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-23 Shuanglin Jia, Wanyu Qian, Penglu Yu, Ke Li, Mingxuan Li, Jinle Lan, Yuan-Hua Lin, Xiaoping Yang
As innovative energy materials, ionic thermoelectric materials (i-TEs) possess a distinctive combination of a high Seebeck coefficient and low thermal conductivity. This unique feature positions them as ideal candidates for efficiently harvesting low-grade heat. This review categorizes i-TEs into thermally diffusive type and thermogalvanic type, with a focus on the former due to its higher Seebeck
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Prediction of ambient pressure superconductivity in cubic ternary hydrides with MH6 octahedra Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-22 Feng Zheng, Zhen Zhang, Zepeng Wu, Shunqing Wu, Qiubao Lin, Renhai Wang, Yimei Fang, Cai-Zhuang Wang, Vladimir Antropov, Yang Sun, Kai-Ming Ho
Exploring high-temperature superconducting (high-) material at ambient pressure holds immense significance for physics, chemistry, and materials science. In this study, we perform a high-throughput screening of strong electron-phonon interactions in XMH compounds (X = Li, Na, Mg, Al, K, Ca, Ga, Rb, Sr, and In; M are 3, 4, and 5 transition metals). These compounds have a cubic structure featuring an
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Insight into lightweight MXene/Polyimide aerogel with high-efficient microwave absorption Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-21 Ying Li, Chunlei Dong, Sijia Wang, Peng Zhang, Dongyi Lei, Binbin Yin, Zhichun Chen, Xiaodong He, Chengkan Liu, Jiaxin Liu
Two-dimensional transition metal carbides and nitrides (MXenes) which enriched with surface functional groups, defects, and considerable interlayer spaces, demonstrate promising prospects in microwave absorption due to that significantly contribute to dielectric loss. However, their limited gelation ability in aqueous solutions and propensity for self-stacking restrict their applications. Addressing
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Pressure-induced Lifshitz transition in the type-II Weyl semimetal WP2 Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-15 Zhenhua Chi, Junran Zhang, Zisheng Gong, Feng Peng, Xiangqi Wang, Guohao Dong, Yanchun Li, Youguo Shi, Yongheng Ge, Xin Yang, Zengming Zhang, Gang Xu, Ning Hao, Chao Zhou, Jinggang Qin
We report evidences of a pressure-induced Lifshitz transition in the type-II Weyl semimetal WP via resistance, synchrotron X-ray diffraction, and Raman scattering measurements with the aid of density functional theory calculations up to 50 GPa. The resistance at 2 K and 300 K and residual resistance ratio rise precipitously at ca. 20 GPa. The pristine orthorhombic structure is robust against pressures
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Intelligent estimation of critical current degradation in HTS tapes under repetitive overcurrent cycling for cryo-electric transportation applications Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-15 Alireza Sadeghi, Shahin Alipour Bonab, Wenjuan Song, Mohammad Yazdani-Asrami
Overcurrent cycling refers to the procedure of imposing repetitive overcurrent to superconducting tapes/devices for characterizing their critical current reduction. Characterizing the overcurrent cycling behaviour of Rare Earth Barium Copper Oxide (ReBCO) tapes is a crucial step in the design process of High Temperature Superconducting (HTS) devices. Multiple overcurrent incidents during the operation
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Electromechanically reconfigurable plasmonic nanoslits for efficient nano-opto-electro-mechanical tuning Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-15 Hyeong Seok Yun, Xiu Liu, Hakan Salihoglu, Zhuo Li, Sheng Shen
Plasmonic metamaterials with strong localized surface plasmon resonances (LSPRs) have been improved by incorporating a nano-opto-electro-mechanical system (NOEMS) for tunable optical and electrical responses. However, conventional NOEMS devices suffer from the inefficient free-space coupling due to the limited design of reconfigurable antennas and the low optical tunability due to electrostatic pull-in
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High thermoelectric performance near the Mott–Ioffe–Regel limit in Cu S0.6Te0.4 meta-phases Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-13 Min Zhou, Kunpeng Zhao, Hexige Wuliji, Hong Su, Jingdan Lei, Tian-Ran Wei, Fangfang Xu, Xun Shi
The meta-phase, characterized by crystal-amorphicity duality in the extremely special case, has garnered considerable interests due to its glass-like thermal conductivity and tunable conduction mechanisms for carriers. However, the impact of crystal-amorphicity duality on the electrical and thermal transports remains elusive, and the carrier concentration in the meta-phase is rarely tuned in a wide
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A new noncollinear triangle antiferromagnetic phase in Mn3GaN by Cr doping Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-10 Jingyao Wang, Kewen Shi, Ying Sun, Sihao Deng, Kaiqi Zhang, Jin Cui, Dongmei Hu, Weisheng Zhao, Cong Wang
The study on spintronic materials with noncollinear antiferromagnetic (AFM) structures is a hot research field. Antiperovskite Mn-based compounds MnN with Kagome lattice have attracted extensive attention, which display abundant physical properties. Particularly, some with non-zero Berry curvature can exhibit anomalous Hall effects or spin Hall effects despite their noncollinear AFM structures. They
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Nanoscale observation of heparin-mediated self-assembly of chiral tau enantiomers Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-10 Wei Chen, Yunhao Chen, Yunjiao Wang, Ligang Chen, Shuo Zhou, Dandan Li, Bohua Yin, Zhongbo Yang, Liang Wang, Huabin Wang
Understanding the effects of chirality and cofactors on neuropathogenic protein self-assembly has garnered much attention due to its close relevance with neuro-degenerative diseases. However, hitherto chiral Tau self-assembly and cofactors-mediated chiral Tau self-assembly are unexplored terrains. In this communication, we report the observation of self-assembly of synthesized natural levorotary (L-)
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A/B sites Co-doping in spinel oxide enabled by a high-entropy strategy for enhanced thermal radiation Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-10 Na-Li Chen, Ge-Ting Sun, Cheng-Yu He, Bao-Hua Liu, Hui-Xia Feng, Gang Liu, Xiang-Hu Gao
The introduction of multiple metal atoms into a single-phase structure is a highly desirable strategy to enhance the functional properties of materials. Herein, we report the synthesis of a high-entropy (Cu, Mn)(Co, Fe, Cr)O oxide by simultaneously doped cations into the A and B sites of a spinel structure through a solid-phase synthesis method. Through comprehensive characterization of its microstructure
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Carrier optimization and reduced thermal conductivity leading to enhanced thermoelectric performance in (Mg, S) co-doped AgSbTe2 Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-10 Peramaiyan Ganesan, Chandra Shekar Gantepogu, Sidharth Duraisamy, Suneesh Meledath Valiyaveettil, Wei-Han Tsai, Cheng-Rong Hsing, Kung-Hsuan Lin, Kuei-Hsien Chen, Yang-Yuan Chen, Maw-Kuen Wu
Optimizing materials' electrical and thermal properties takes time and effort to achieve high thermoelectric performance. However, the appropriate dopants based on the solution can mitigate the difficulties and increase the overall thermoelectric performance. We have investigated the influence of (Mg, S) doping on the thermoelectric properties of AgSbMgTeS (x = 0.02, 0.03 and 0.04; y = 0.05, 0.1 and
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Multiple conduction bands with strong valley anisotropy yielding ultrahigh thermoelectric power factors in n-type elemental Ge Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-08 Jingwei Wan, Chenghao Xie, Xiaochen Sun, Sihan Chen, Xinfeng Tang, GangJian Tan
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A MoS2/BAs heterojunction as photodetector Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-08 Guoyu Xiong, Jialin Lu, Ruize Wang, Ziheng Lin, Shenglin Lu, Jianchao Li, Zhaofei Tong, Zhanjun Qiu, Ke Chen, Yong Sun, Fei Tian, Chengxin Wang
With high thermal conductivity and carrier mobility, cubic boron arsenide (BAs) shows huge potential in high-power and high-speed optoelectronic devices. However, researches about BAs-based junction device are rare by now due to preparation difficulties. Herein, by mechanical exfoliation of molybdenum disulfide (MoS) flake and planar transfer technology to a BAs crystalline substrate, a MoS/BAs p-n
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Study on thermoreflectance linear relation of gallium nitride epitaxial structures at above-bandgap wavelength Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-08 Yunliang Ma, Mei Wu, Haochen Zhang, Haiding Sun, Chao Yuan
Increasing attention has been paid to the transducer-less thermoreflectance measurements on gallium-nitride (GaN) semiconductors to reveal their thermal properties as well as channel temperatures of GaN-based devices by employing above-bandgap light sources. However, quantitative studies of the thermoreflectance linearity for GaN-based materials are still challenging. In this work, the thermoreflectance
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Remarkable enhancement of the nonlinear optical absorption of W18O49 by Cu doping Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-08 Miao He, Danil W. Boukhvalov, Hui Li, Xiangyun Gao, Mark G. Humphrey, Chi Zhang, Zhipeng Huang
Advanced nonlinear optical (NLO) materials, such as metal chalcogenides, black phosphorus, and perovskites, have encountered challenges arising from their inherent low chemical and thermal stability. The desirable attributes of chemical and thermal stability are exhibited by promising metal oxides within NLO applications, whereas the NLO response of metal oxides has typically shown modest strength
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Ultra-high thermoelectric performance achieved in only ternary lead sulfide through unconventional halogen element doping Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-07 Wenjun Su, Qian Deng, Lin Gan, Xiaobo Tan, Zhengmin He, Wei Yuan, Canyang Zhao, Xiang An, Bo Liu, Ran Ang
The abundant presence of lead sulfide on Earth, as PbTe and PbSe homologous compounds, has sparked increasing research interest in the field of thermoelectrics. However, the low carrier transport properties and high lattice thermal conductivity of PbS, contributing to its low thermoelectric properties. Conventional doping methods often fail to consider the simultaneous optimization of both aspects
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The tellurium-induced CoSe polyhedral porous nano-structured materials as high-performance cathodes for rechargeable magnesium batteries Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-06 Runjing Xu, Xiao Han, Ya Chen, Xin Gao, Zhiyuan Zhang, Hongchao Sun, Xiaodong Chen, Chengxin Peng, Lifeng Cui
Rechargeable magnesium batteries (RMBs) are cost-effective and dendrite-free, making them desirable for large-scale applications. Nevertheless, the exploration of high-performance cathodes still remains a great challenge in magnesium battery research. Herein, the CoSe porous polyhedra induced by Te heteroatoms (CoSe/Te) are successfully prepared by two-step metal-organic framework (MOF)-template assisted
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Multicolor regulation of trivalent lanthanide ions-codoped boggildite-type phosphor toward superb warm white luminescence for white light-emitting diodes Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-06 Jian-Feng Sun, Yonglei Zhao, Kaiyi Yan, Shijun Ji
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Thermal conductivity reduction in highly-doped cubic SiC by phonon-defect and phonon-electron scattering Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-03 Guijian Pang, Fanchen Meng, Yani Chen, Ankita Katre, Jesús Carrete, Bonny Dongre, Georg K.H. Madsen, Natalio Mingo, Wu Li
We calculate the thermal conductivity () of highly N- and B-doped cubic silicon carbide (SiC) with defect concentrations () from 10 to 10 cm and compare the relative importance of the extrinsic phonon-electron and phonon-defect scattering mechanisms. Whereas phonon-electron scattering dominates over phonon-defect scattering at low up to about 10 cm at room temperature in N-doped SiC, phonon-defect
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Magnetic properties and large low-field cryogenic magnetocaloric effect in the divalent europium borate Eu2B2O5 compound Mater. Today Phys. (IF 11.5) Pub Date : 2024-01-30 Zhaojun Mo, Quanyi Liu, Wexiang Hao, Lingwei Li, Huicai Xie, Qi Fu, Xinqiang Gao, Jun Shen
We herein investigated the divalent europium borate Eu2B2O5 compound regarding its structural, magnetic and magnetocaloric properties by means of experimental determinations and first principal calculations. The Eu2B2O5 compound was found to crystallize in a monoclinic structure (P21/c space group) and order ferromagnetically at ground state. A large cryogenic reversible MCE was observed in the Eu2B2O5
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Achieving visual information encryption employing the asymmetric principle through programmable and challenging-to-clone multicolor-tunable luminescence Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-02 Jingru Wang, Jiaxin Yang, Yanyan Li, Yang Li, Rui Xu, Feng Song
The widespread application of optical encryption materials with difficult imitation, multicolor-tunable emission and simple operation presents a promising strategy for secure communication and authentication of information. Herein, Eu-MOF grafted with coumarin 7 is successfully constructed through self-assembly process and a prismatic three-dimensional hyperbranched structure is formed. At room temperature
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An economic bifunctional electrolyte additive for highly reversible zinc anode Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-02 Chenchen Wei, Yu Zhou, Xiaolong Wang, Huimin Qi, Xiaohui Li, Ting Zou, Wenping Wang, Ze Yang, Ying Yu
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Machine learning as a characterization method for analysis and design of perovskite solar cells Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-02 Yiming Liu, Xinyu Tan, Peng Xiang, Yibo Tu, Tianxiang Shao, Yue Zang, Xiong Li, Wensheng Yan
Device-level characterization is the primary means of testing the performance of a device and identifying the microscale factors that affect its performance. With the accumulation of data on perovskite solar cells (PSCs), machine learning (ML) may become a potential tool for characterizing properties of PSCs. Here, we use ML techniques and 698 sets of rigorously cleaned experimental data to construct
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Accelerating thermal conductivity prediction through machine-learning: Two orders of magnitude reduction in phonon-phonon scattering rates calculation Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-02 Yagyank Srivastava, Ankit Jain
The calculation of phonon-phonon scattering rates is a computational bottleneck in first-principles based phonon thermal conductivity prediction of materials. Here, we report a machine learning approach for phonon scattering rates prediction which is capable of predicting thermal conductivity by employing only 5 % of the total computational cost. We test this approach on more than 200 diverse materials
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Electrostatically self-assembled hierarchical magnetic Co7Fe3@C/Ti3C2Tx nanocomposite for high-efficient microwave absorption Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-02 Huichao Rao, Kai Nan, Wei Wang, Yuankai Zhang, Yan Wang
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Design of a novel Schottky diode-functionalized Z-scheme C-doped BiOI@Bi0 noble-metal-free plasmonic photocatalyst for efficient photo-oxidation of azo dyes and endocrine-disrupting chemical under visible light irradiation Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-01 Cheru Talbachew Haile, Kim Hoong Ng, Chih-Wei Chiu, Naveed Ahmad, Chung-Feng Jeffrey Kuo
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Enhancing thermoelectric properties of ductile Ag2S0.7Te0.3 with trace Ag vacancy Mater. Today Phys. (IF 11.5) Pub Date : 2024-02-01 Dezheng Gao, Sining Wang, Yi Wen, Fei Fang, Yichen Li, Shibo Liu, Yaokun Wang, Hongyao Xie, Yuting Qiu, Li-Dong Zhao
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Surface recrystallization on melt electrowritten scaffolds for acceleration of osteogenic differentiation Mater. Today Phys. (IF 11.5) Pub Date : 2024-01-28 Yingchun Su, Yuge Zhang, Yang Chen, Sara Seidelin Majidi, Mingdong Dong, Menglin Chen
As physical topographical features suggest important effects in bone tissue engineering, an increasing amount of research on surface topographies has been carried out. In this work, melt electrowritten PCL scaffolds (mPCL) with recrystallized surfaces for osteogenic differentiation were constructed. The recrystallized grid PCL scaffolds (rPCL) show strengthened mechanical properties, retained biocompatibility
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Decoration of conjugated polyacene quinone radical (PAQR) with Fe3O4 nanospheres achieving improved impedance matching and electromagnetic wave absorption Mater. Today Phys. (IF 11.5) Pub Date : 2024-01-28 Xiaoping Zhang, Qingyu Wang, Yanan Tang, Guohua Fan, Chuncheng Hao, Yao Liu
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Zr substituted (Nd, Zr)(Fe, Co, Mo)12N compounds with high intrinsic magnetic properties Mater. Today Phys. (IF 11.5) Pub Date : 2024-01-26 Shaohua Fan, Baochun Wu, Hui-Dong Qian, Yuanhua Xia, Hao Li, Guoxin Chen, Qing Xu, Wenyun Yang, Jingzhi Han, Honglin Du, Jinbo Yang, Yingchang Yang
The Fe-rich ThMn12-type compounds show great promise as permanent magnetic materials. In this work, the structure and magnetic properties of (Nd, Zr)(Fe, Co, Mo)12N compounds have been systematically studied. The spherical aberration corrected scanning transmission electron microscopy images and neutron diffraction results confirm that Zr and Mo occupy the 2a and 8i sites, respectively. It is found
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Quantification of switchable thermal conductivity of ferroelectric materials through second-principles calculation Mater. Today Phys. (IF 11.5) Pub Date : 2024-01-26 Jingtong Zhang, Chengwen Bin, Yunhong Zhao, Huazhang Zhang, Sheng Sun, Peng Han, Chang Liu, Tao Xu, Gang Tang, Tong-Yi Zhang, Jie Wang
Materials with tunable thermal properties at room temperature have attracted great attention owing to their applications as solid-state thermal switches for thermal management. As a typical ferroelectric material, barium titanate (BaTiO3) is regarded as promising candidate for thermal switch because its ferroelectric polarization can be switched by external electric field. However, BaTiO3 presents
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Synergistic effects of confined substitution and architecture engineering in CoTe2/Sb2Te3 heterostructures towards durable and fast sodium storage Mater. Today Phys. (IF 11.5) Pub Date : 2024-01-24 Wenbo Fan, Jianlian Huang, Wei Zhang, Weiming Zhao, Lixiang Wang, Jiawei Wu, Gaoyu Wang, Shaoming Huang
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Role of atypical temperature-responsive lattice thermal transport on the thermoelectric properties of antiperovskites Mg3XN (X = P, As, Sb, Bi) Mater. Today Phys. (IF 11.5) Pub Date : 2024-01-24 Jincheng Yue, Yanhui Liu, Wenling Ren, Shuyao Lin, Chen Shen, Harish Kumar Singh, Tian Cui, Terumasa Tadano, Hongbin Zhang
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Up-conversion emission of Yb3+/Tm3+-activated SrNb2O6 lead-free glass-ceramics for optical temperature sensors Mater. Today Phys. (IF 11.5) Pub Date : 2024-01-24 Zhixin Gao, Fei Shang, Guohua Chen
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Recent progress in topological semimetal and its realization in Heusler compounds Mater. Today Phys. (IF 11.5) Pub Date : 2024-01-22 Hongshuang Liu, Jiashuo Liang, Taiyu Sun, Liying Wang
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Contribution of the Seebeck effect to liquid-flow-induced voltage generation in carbon nanotubes Mater. Today Phys. (IF 11.5) Pub Date : 2024-01-17 Shohei Horike, Kaho Kawasaki, Mayuko Nishinaka, Qingshuo Wei, Yasuko Koshiba, Kenji Ishida
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Anomalous temperature dependence of photoluminescence lifetime in CsPbBr3 quantum dot-polymer film for optical thermometry Mater. Today Phys. (IF 11.5) Pub Date : 2024-01-19 Wei Ni Lee, Lai-Hung Lai, Yi-Qi Tu, Yu-Hao Chang, Liang-Yih Chen, Hsuan-Chun Chang, Ching-Chuan Hsieh, Jih-Jen Wu
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A tri-modal tactile sensor based on porous ionic hydrogel for decoupled sensing of temperature and pressure Mater. Today Phys. (IF 11.5) Pub Date : 2024-01-14 Yangfan Liu, Changliu He, Jiahao Fang, Jian Zhou, Kedong Shang, Xiaobo Pu, Linmao Qian, Tingting Yang
Developing simple device configurations to satisfy independent thermal and force sensing is critical for improving the recognition and manipulation capabilities of robotic hands on objects, but it remains a challenge. In this paper, through the composition adjustment of polyvinyl alcohol, KOH, nano-silica, glycerin, and the microporous structure design, the prepared ionic hydrogel sensor has promising
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Pressure-induced superconductivity in a novel germanium allotrope Mater. Today Phys. (IF 11.5) Pub Date : 2024-01-12 Liangzi Deng, Jianbo Zhang, Yuki Sakai, Zhongjia Tang, Moein Adnani, Rabin Dahal, Alexander P. Litvinchuk, James R. Chelikowsky, Marvin L. Cohen, Russell J. Hemley, Arnold Guloy, Yang Ding, Ching-Wu Chu
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Grand herringbone architecture securing the high thermoelectric performance of GeTe Mater. Today Phys. (IF 11.5) Pub Date : 2024-01-08 Yi-Fen Tsai, Pai-Chun Wei, Nien-Ti Tsou, Ying-Chun Chao, Hung-Wei Yen, Jhe-Yu Lin, Kuang-Kuo Wang, Hsin-Jay Wu
This work demonstrates a unique two-stage cooling procedure for synthesizing high-performance thermoelectric (TE) GeTe alloys with a maximum zT value of 2.0 (720 K) without assistance of chemical doping. The efficiency breakthrough stems from the grand herringbone structure resulted from the annealing step intentionally inserted near the phase transition temperature Tc of GeTe when cooling. Compared
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Effectively enhancing red fluorescence strategy and bioimaging applications of carbon dots Mater. Today Phys. (IF 11.5) Pub Date : 2024-01-06 Fanghao Wang, Xuezhe Dong, Yujing Zuo, Zheng Xie, Ruifang Guan