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An Ultrahigh-Linearity moeMS Accelerometer Based on a Self-Traceable Grating Interferometer

IEEE Sensors Journal 2025年第9期25卷 15914-15922页

作者： Chang, Zhikun Song, Song Niu, Pengfei Xiao, Guangxu Lin, Zichao He, Chunling Deng, Xiao Xue, Dongbai Xie, Yuying Cheng, Xinbin Li, Tongbao Institute of Precision Optical Engineering MOE Key Laboratory of Advanced Micro-Structured Materials Shanghai Frontiers Science Center of Digital Optics Shanghai Professional Technical Service Platform for Full-Spectrum and High-Performance Optical Thin Film Devices and Applications School of Physics Science and Engineering Tongji University School of Physics Science and Engineering Shanghai200092 China Zhejiang University of Water Resources and Electric Power School of Computer Science and Technology Hangzhou310018 China Tianjin University State Key Laboratory of Precision Measuring Technology and Instruments Tianjin300072 China

The linearity of the accelerometer directly affects its measurement accuracy and applicability, making it a key metric in the development of high-performance accelerometers. In response, this article proposes an ultrahigh-linearity moeMS accelerometer based on a self-traceable grating (STG) interferometer. The accelerometer integrates an MEMS resonator with an STG interferometer based on chromium (Cr) atom transition frequency 7S3 → 7P4, enabling direct traceability of displacement to the International System of Units (SI) "meter." Specifically, the average pitch of the Cr grating used is (212.781 ± 0.008) nm ( k = 2 ), showing outstanding uniformity and long-term stability. Furthermore, the compact interferometer design gives it an overall size of just 7.5 × 7.5 × 2 cm, facilitating portable measurements in practical applications. Experimental results show that the accelerometer achieves ultrahigh performance with a nonlinearity of 0.04%. The device also demonstrates a sensitivity of 13.77 μm/g within a measurement range of ±1.6 g, with a noise floor of 9.6 × 10-7 g/√Hz. The integration of STG technology with the MEMS resonator offers a scalable solution for high precision, field-deployable accelerometer measurements, greatly improving measurement linearity and traceability. © 2001-2012 IEEE.

关键词： Accelerometers

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Growth of gallium oxide bulk crystals: a review

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The European Physical Journal Special Topics 2025年 1-41页

作者： Huang, Lin Tang, Huili Zhang, Chaoyi Sun, Peng Fang, Qiancheng Wu, Feng Luo, Ping Liu, Bo Xu, Jun MOE Key Laboratory of Advanced Micro-Structure Materials School of Physics Science and Engineering Tongji University Shanghai People’s Republic of China

Gallium oxide (Ga2O3) is a novel ultra-wide bandgap (UWBG) semiconductor material with advantages such as a wide bandgap, high breakdown field strength, fast scintillation decay time, stable physicochemical properties, and the ability to be prepared by the melt growth method. It holds promising applications in semiconductor power devices and scintillation detection systems. The preparation of large-sized, high-quality gallium oxide crystals is of significant research importance for the material's applications. This review summarizes the principles, growth equipment, progress in crystal growth, and the advantages and disadvantages of various melt growth methods for bulk gallium oxide crystals. Significant breakthroughs have been achieved in the field of β-Ga2O3 crystal growth; however, stable p-type doping and low-cost high-quality crystal preparation still face challenges.

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Lead-Free Scintillator Based on a Luminescent Green-Emitting Material Derived from Manganese(II) Chloride for High-Resolution X-Ray Imaging

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Journal of Inorganic and Organometallic Polymers and materials 2025年 1-8页

作者： Zheng, Xiaokang Tao, Peng Wang, Hua Zhang, Lijie Wong, Wai-Yeung MOE Key Laboratory of Interface Science and Engineering in Advanced Materials Taiyuan University of Technology Taiyuan030024 China Department of Applied Biology and Chemical Technology and Research Institute for Smart Energy The Hong Kong Polytechnic University Hung Hom Hong Kong The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen518057 China College of Textile Engineering Taiyuan University of Technology Jinzhong030600 China Zhejiang International Joint Laboratory of Optical Functional Materials Wenzhou University Wenzhou325000 China

Manganese(II) halides have attracted significant research attention because of their unique zero-dimensional structures, low toxicity, structural diversity, and tunable photoluminescent properties. However, the development of neutral manganese(II) chlorides has lagged behind their manganese(II) bromide counterparts in X-ray imaging applications. Herein, we report a green-emitting neutral monodentate manganese(II) chloride complex (H-Cl) by introducing the cyclohexyldiphenylphosphine oxide as the ligand, which could be synthesized via a simple room-temperature solvent evaporation method. Complex H-Cl exhibits bright photoluminescence with an emission peak at 516 nm with a full-width at half-maximum (FWHM) of 61 nm, and achieves a photoluminescence quantum yield (PLQY) of 16.69%, surpassing most reported neutral monodentate manganese(II) chlorides. As an X-ray scintillator, complex H-Cl realizes a detection limit of 1.581 µGy/s, which is much lower than that of the standard for X-ray medical diagnostics. It also shows a high spatial resolution exceeding 9.6 lp/mm, highlighting its potential for advanced scintillator design and high-resolution X-ray imaging technology. © The Author(s) 2025.

关键词： Scintillation counters

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Local-orbital tomography with depth-dependent interactions

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Physical Review B 2025年第6期111卷 064116-064116页

作者： Liangze Mao Jizhe Cui School of Materials Science and Engineering Tsinghua University Beijing 100084 China MOE Key Laboratory of Advanced Materials Tsinghua University Beijing 100084 China and State Key Laboratory of New Ceramics and Fine Processing Tsinghua University Beijing 100084 China

Three-dimensional reconstruction of atomic structure, known as atomic electron tomography (AET), has found increasing applications in materials science. The AET has been limited to objects of very small size due to the challenges of obtaining accurate atomic positions for large objects, for which the projection approximation generally assumed in AET is no longer valid due to the evolution of the electron probe along the beam direction. To address these challenges, we have developed a method that represents atoms as local orbitals and implements a depth-dependent probe-object interaction. Compared to conventional tomographic methods, the accuracy of atomic positions is improved by more than a factor of three and provides a solution for the tomographic reconstruction of large objects.

关键词： Atoms

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Recent progress on surface chemistryⅡ:Property and characterization

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Chinese Chemical Letters 2025年第1期36卷 8-57页

作者： Xin Li Zhen Xu Donglei Bu Jinming Cai Huamei Chen Qi Chen Ting Chen Fang Cheng Lifeng Chi Wenjie Dong Zhenchao Dong Shixuan Du Qitang Fan Xing Fan Qiang Fu Song Gao Jing Guo Weijun Guo Yang He Shimin Hou Ying Jiang Huihui Kong Baojun Li Dengyuan Li Jie Li Qing Li Ruoning Li Shuying Li Yuxuan Lin Mengxi Liu Peinian Liu Yanyan Liu Jingtao Lü Chuanxu Ma Haoyang Pan JinLiang Pan Minghu Pan Xiaohui Qiu Ziyong Shen Qiang Sun Shijing Tan Bing Wang Dong Wang Li Wang Lili Wang Tao Wang Xiang Wang Xingyue Wang Xueyan Wang Yansong Wang Yu Wang Kai Wu Wei Xu Na Xue Linghao Yan Fan Yang Zhiyong Yang Chi Zhang Xue Zhang Yang Zhang Yao Zhang Xiong Zhou Junfa Zhu Yajie Zhang Feixue Gao Yongfeng Wang Center for Carbon-based Electronics and Key Laboratory for the Physics and Chemistry of Nanodevices School of ElectronicsPeking UniversityBeijing 100871China Spin-X Institute School of MicroelectronicsSouth China University of TechnologyGuangzhou 511442China School of Materials and Energy Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage DevicesGuangdong University of TechnologyGuangzhou 510006China Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093China i-Lab CAS Key Laboratory of Nanophotonic Materials and DevicesSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China CAS Key Laboratory of Molecular Nanostructure and Nanotechnology CAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of SciencesBeijing 100190China State Key Laboratory for Organic Electronics and Information Displays&Jiangsu Key Laboratory for Biosensors Institute of Advanced MaterialsJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing University of Posts and TelecommunicationsNanjing 210023China Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123China Hefei National Research Center for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China Institute of Physics&University of Chinese Academy of Sciences Beijing 100190China State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China College of Chemistry Beijing Normal UniversityBeijing 100875China Beijing National Laboratory for Molecular Sciences(BNLMS) College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China School

Surface with well-defined components and structures possesses unique electronic,magnetic,optical and chemical *** a result,surface chemistry research plays a crucial role in various fields such as catalysis,energy,materials,quantum,and *** science mainly investigates the correspondence between surface property and *** probe microscopy(SPM)techniques are important tools to characterize surface properties because of the capability of atomic-scale imaging,spectroscopy and manipulation at the single-atom *** this review,we summarize recent advances in surface electronic,magnetic and optical properties characterized mainly by SPM-based *** focus on elucidating theπ-magnetism in graphene-based nanostructures,construction of spin qubits on surfaces,topology properties of surface organic structures,STM-based light emission,tip-enhanced Raman spectroscopy and integration of machine learning in SPM studies.

关键词： Surface chemistry Scanning probe microscopy π-Magnetism Spin qubits Tip-enhanced Raman spectroscopy

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Anion-induced electrolyte chemistry enables high energy density primary battery for ultralow-temperature conditions

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science China Chemistry 2025年第5期 2051-2058页

作者： Zi-Hang Xue Hao-Jie Liang Yong-Li Heng Jia-Lin Yang Edison Huixiang Ang Hong-Yan Lü Hong Yu Dongmei Dai Dai-Huo Liu Chuan-Yu Zheng Wei Guo Xing-Long Wu Department of Chemistry Northeast Normal University MOE Key Laboratory for UV Light-Emitting Materials and Technology Northeast Normal University Natural Sciences and Science Education National Institute of EducationNanyang Technological University State Key Laboratory of Solidification Processing Center of Advanced Lubrication and Seal MaterialsNorthwestern Polytechnical University School of Chemistry and Chemical Engineering Henan Normal University Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province Gannan Normal University

Lithium/fluorinated-carbon（Li/CFx） primary batteries are widely used in defense and military fields due to their stable discharge plateau,low self-discharge rate,and adaptability across a wide temperature ***,enhancing their overall energy density and discharge capacity at low temperatures remains a critical ***,we report a strategically designed LiBF4-based sulfite/carboxylate electrolyte,where the anion-involved solvation structure significantly enhances electrochemical kinetics by reducing the desolvation ***,it introduces a radical reaction mechanism that contributes to additional *** a result,the Li/CFxprimary batteries with this formulated electrolyte deliver a specific capacity of 2,257.15 mAh g-1at 25 ℃.More importantly,when operating at -40 ℃,the batteries exhibit an exceptionally high discharge capacity of 1,549.4 mAh g-1and an energy density of 2,868.6 Wh *** at -60 ℃,the Li/CFxcells achieve a specific capacity of 444.3 mAh g-1and an energy density of 821.8 Wh kg-1at 0.1 C,significantly outperforming previously reported organic-based liquid *** work offers a viable strategy for enhancing the specific capacity and energy density of primary batteries in extreme environments,providing valuable insights for future developments.

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Superior long-term compact energy storage enabled by dense three-dimensional Ti3C2Tx/MoS2 hybrid monoliths with high volumetric performance

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Journal of Energy Storage 2025年 124卷

作者： Xiao, Chuanyang Wei, Cheng Qin, Laifen Cao, Hailiang Yang, Liangtao Deng, Wei Qin, Chen Wang, Jun Guo, Junjie Key Laboratory of Interface Science and Engineering in Advanced Materials Ministry of Education College of Materials Science and Engineering Taiyuan University of Technology Taiyuan030024 China Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Shenzhen518055 China Guangdong Provincial Key Laboratory of Energy Materials for Electric Power School of Innovation and Entrepreneurship Southern University of Science and Technology Shenzhen518055 China

Developing high volumetric capacity anode materials for lithium-ion batteries (LIBs) or sodium-ion batteries (SIBs) is crucial to meet the growing demand for high energy storage. Although two-dimensional (2D) materials, such as MXenes and MoS2, attract significant interest as anode materials for alkali-metal ion batteries, the extremely low packing density hinders practical applications. Here we report a facile synthesis strategy for achieving high-density three-dimensional (3D) hierarchical electrodes, i.e. MoS2 nanosheets grown in-situ on Ti3C2Tx MXene monoliths (H-MX/MoS2), with packing density as high as 2.0 g cm−3. Such a porous 3D hierarchical architecture provides buffer space for volume expansion and fast ion/electron conductive pathways, resulting in high volumetric capacity, improved cycling and rate performance. Specifically, as an anode material for LIBs, the H-MX/MoS2 hybrid delivers high gravimetric capacity (946 mAh g−1), volumetric capacity (1892 mAh cm−3), and excellent cycle life (1480 mAh cm−3 at 0.1 A g−1 after 1000 cycles). Moreover, the high volumetric capacity (1142 mAh cm−3) and impressive rate capability (483 mAh cm−3 at 2 A g−1) are also achieved for SIBs. Remarkably, full LIBs and SIBs cells with the H-MX/MoS2 anode show excellent electrochemical performances. This work paves the way for innovative designs of dense 2D materials suitable for compact energy storage. © 2025

关键词： Sodium-ion batteries

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High-photoresponse mixed-dimensional CuOx/WSe2 p-type phototransistor with van der Waals interface

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Applied Physics Reviews 2025年第2期12卷

作者： Jiang, Wengui Wu, Yonghuang Ye, Huanyu Zhou, Liang Xin, Zeqin Liu, Kai Sun, Yinghui Wang, Rongming Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science The State Key Laboratory for Advanced Metals and Materials School of Mathematics and Physics University of Science and Technology Beijing Beijing100083 China State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University Beijing100084 China

Mixed-dimensional heterostructures, which utilize the complementary advantages of diverse materials, hold great promise for high-performance photodetectors. However, p-type photodetection is constrained by the scarcity of suitable photosensitive materials and challenges in interface engineering, particularly over-coupling at the hetero-interface, which significantly impacts detection performance. In this work, we present a p-type CuOx/WSe2 phototransistor that achieves both high responsivity and broad bandwidth. Using CuOx nanoparticles with abundant copper vacancies for broadband light absorption and two-dimensional WSe2 as a high-mobility channel, this device demonstrates an exceptional responsivity of up to 1.8 × 105 A/W across wavelengths from 365 to 810 nm. The high performance originates from hole injection from defect-rich CuOx into WSe2, combined with electron trapping in vacancy states. The weak van der Waals interaction at the interface effectively decouples the optical absorption (in CuOx) from charge transport (in WSe2), enabling high gain without sacrificing response speed. © 2025 Author(s).

关键词： Van der Waals forces

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Hydrophobic Pbat/Sio2 Composite Films for Food Packaging

SSRN

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SSRN 2025年

作者： Gao, Jian Zhang, Jie Guo, Honghui Liang, Ziyu Liu, Fuyong Xiao, Kaiyuan Li, Wei Yan, Hong Guo, Ruijie College of Materials Science and Engineering Taiyuan University of Technology Taiyuan030024 China Key Laboratory of Interface Science and Engineering in Advanced Materials Ministry of Education Taiyuan University of Technology Taiyuan030024 China

SiO2 was hydrophobically modified using vinyltrimethoxysilane (VTMO), then modified SiO2 NPs were grafted onto poly(butylene adipate-co-terephthalate) (PBAT) matrix. The modified PBAT composite films were prepared by the solvent evaporation method. FTIR and XPS analyses were performed to study the chemical structure of the modified films. The hydrophobic surface morphology was studied by SEM. The effects of the hydrophobically modified SiO2 on the hydrophobicity, mechanical properties, barrier properties, and antibacterial adhesion properties of PBAT were investigated. Results showed that optimum performance was achieved when the SiO2 content was 1%. The contact angle increased from 66° to 139°, with a tensile strength of 13.40 MPa and an elongation at break of 835%. The barrier properties were also improved. The inhibition rates for E. coli and S. aureus reached 99%. All the results proved that the modified PBAT-based films could be used as food packaging films. © 2025, The Authors. All rights reserved.

关键词： Tensile strength

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Hydrophobic PBAT/SiO2 Composite Films for Food Packaging

SSRN

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SSRN 2025年

作者： Gao, Jian Zhang, Jie Guo, Honghui Liang, Ziyu Xiao, Kaiyuan Liu, Fuyong Li, Wei Yan, Hong Guo, Ruijie College of Materials Science and Engineering Taiyuan University of Technology Taiyuan030024 China Key Laboratory of Interface Science and Engineering in Advanced Materials Ministry of Education Taiyuan University of Technology Taiyuan030024 China

关键词： Tensile strength

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