检索结果-内蒙古大学图书馆

IEEE SENSORS

作者： Ruoyao Huang Tingxuan Chen Ling Zhu Kwai Hei Li School of Microelectronics Southern University of Science and Technology Shenzhen China State Key Laboratory of Radio Frequency Heterogeneous Integration (Shenzhen University) Shenzhen China Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen China

ISBN: (数字)9798350363517

ISBN: (纸本)9798350363524

A compact dual-axis tilt sensor utilizing chip-scale GaN optoelectronics is presented. The sensor comprises a cross-shaped optoelectronic device enclosed in a glass sphere, employing mineral oil as a liquid pendulum. The device integrates a light emitter and four independent detectors, designed to detect changes in the air-oil interface induced by dual-axis angular tilts. The sensor exhibits a linear response to an angle range of ±80° on both X- and Y-axes, with sensitivities of 40 nA/° and 37 nA/° respectively. It also demonstrates negligible inter-axis crosstalk, a resolution of up to 0.10, fast response, and high stability. Owing to its compact dimensions, the sensor facilitates integration into detection targets, rendering it an ideal candidate for real-time monitoring applications.

关键词： Liquids Oils Glass Robot sensing systems Optical crosstalk Light emitting diodes Minerals Optical sensors Substrates Testing

来源：评论

学校读者我要写书评

暂无评论

Thermal stability of magnetron sputtering Ge-Ga-S films

引用

Chinese Physics B 2020年第8期29卷 485-488页

作者： Lei Niu Yimin Chen Xiang Shen Tiefeng Xu Laboratory of Infrared Materials and Devices&Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province Research Institute of Advanced TechnologyNingbo UniversityNingbo 315211China Department of Microelectronic Science and Engineering School of Physical Science and TechnologyNingbo UniversityNingbo 315211China

Ge-Ga-S thin films were deposited by magnetron sputtering with mean coordination number(MCN)ranging from 2.46 to *** physical properties of the Ge-Ga-S films,including optical band gap,refractive index,and thickness,vary with the time of heat *** on the analysis of the topology model,it is concluded that the Ge-Ga-S thin films with components close to the stoichiometric ratio can form the most Ga-S bonds and Ga-S bonds,and the physical properties of the Ge27.3Ga6.3S66.3(MCN=2.62)film are the most *** is an important reference for thin film photonic devices.

关键词： chalcogenide thin films refractive index optical band gap thermal stability

来源：评论

学校读者我要写书评

暂无评论

Obtaining Ultra-High Hardness in Spark Plasma Sintered Ge40As40Se20 Bulk Glass

SSRN

引用

SSRN 2024年

作者： Xie, Shuangquan Gu, Jierong Jia, Guang Liu, Zijun Gu, Chenjie Gao, Yixiao Zheng, Wenfeng Liu, Ziqiang Shen, Xiang Chen, Yimin Laboratory of Infrared Material and Devices Advanced Technology Research Institute Ningbo University Ningbo315211 China Ningbo Institute of Oceanography Ningbo315832 China Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province Zhejiang Ningbo315211 China Department of Microelectronic Science and Engineering School of Physical Science and Technology Ningbo University Ningbo315211 China

We performed mechanical milling and Spark Plasma Sintering technology to fabricate a high Ge content chalcogenide glass, the Ge40As40Se20 glass, which locates outside the Ge-As-Se glass-forming domain. By using the optimal ball milling time of 50 h and sintering stress of 37.5 MPa, the large size Ge40As40Se20 bulk glasses were obtained, which possesses both large Vickers hardness of 369 Hv and relative high optical transmission of 43% (@5 and 9 μm). Moreover, it was found there are pores in the sintered glasses more or less, and the pore size and number significantly affect transmission, i.e., the optimal Ge40As40Se20 bulk glasses were demonstrated has the smallest and least pores. The combination of mechanical milling and low-temperature sintering methods has been confirmed to improve the glass formability and then obtain the high Ge content component with a potential high hardness glass to break through the limited mechanical property of chalcogenides. © 2024, The Authors. All rights reserved.

关键词： Milling (machining)

来源：评论

学校读者我要写书评

暂无评论

Highly Sensitive Humidity Sensor Based on Strontium-Doped Lanthanum Ferrite Nanofibers

SSRN

引用

SSRN 2023年

作者： Zhang, Ziyi Li, Fangxin Zheng, Yangong Faculty of Electrical Engineering and Computer Science Ningbo University Ningbo315211 China Key Laboratory of Microelectronic Devices & Integrated Technology Institute of Microelectronics Chinese Academy of Sciences Beijing100029 China

Humidity sensors are the most widely applied sensors. Although some highly sensitive humidity sensors have been explored, devices that can accurately detect low humidity are still required. Improving the adsorption of water molecules by surface regulation is an effective way to enhance humidity sensitivity. In this study, electrospinning prepared a series of lanthanum ferrite samples doped with different concentrations of strontium. For the sample with a surface atomic ratio between strontium and lanthanum was approximately 0.2, there was a 6×104 times change in the resistance of the sensor to 90% relative humidity, and the response was 6.76 for 4% relative humidity. Negligible hysteresis, and excellent stability demonstrate the advantages of the strontium-doped lanthanum ferrite nanofibers. The sensing mechanism was discussed by measuring the change of band gap and work function of samples with different concentrations of strontium doping. Furthermore, suitable doping also decreased the adsorption energy and increased the charge transfer during the adsorption of water molecules on the surface of lanthanum ferrite based on the calculations. This study provides a new perspective for enhancing the sensitivity of humidity sensors via surface regulation. © 2023, The Authors. All rights reserved.

关键词： Electrospinning

来源：评论

学校读者我要写书评

暂无评论

生物启发膜在水系镁离子电池阴极的界面工程

引用

Science China Materials 2024年第8期67卷 2558-2566页

作者：洛古子呷苟倩志罗号燃陈昭宇邓江斌王凯鑫何玉婷李英芳王磊张奔郑玉杰李猛 National Innovation Center for Industry-Education Integration of Energy Storage Technology Xuefeng Mountain Energy Equipment Safety National Observation and Research StationMOE Key Laboratory of Low-Grade Energy Utilization Technologies and SystemsCQU-NUS Renewable Energy Materials&Devices Joint LaboratoryCollege of Energy&Power EngineeringChongqing UniversityChongqing 400044China Chongqing Windmagics Weichu Energy Co. Ltd.Chongqing 401121China Southwest Technology and Engineering Research Institute Chongqing 400039China

受到水合镁离子的高脱溶能垒和不良界面水分解行为的限制,水系镁离子电池通常受制于缓慢的离子传输动力学和严重的阴极溶解.为了克服这些障碍,受细胞膜两亲性结构的启发,我们成功构建了一种由疏水性聚(3,4-乙二氧基噻吩)(PEDOT)和亲水性... 详细信息

受到水合镁离子的高脱溶能垒和不良界面水分解行为的限制,水系镁离子电池通常受制于缓慢的离子传输动力学和严重的阴极溶解.为了克服这些障碍,受细胞膜两亲性结构的启发,我们成功构建了一种由疏水性聚(3,4-乙二氧基噻吩)(PEDOT)和亲水性α-MnO_(2)基底组成的MnO_(2)碳基阴极.结合实验和理论计算结果分析,PEDOT层可以有效提高整体电极的导电性,降低水合Mg^(2+)的脱溶能垒,并抑制阴极溶解,从而提高复合电极的性能.因此,本文所制备的复合电极表现出优越的速率性能(58.4mA hg^(-1),3Ag^(-1))和增强的长期循环稳定性(1000个循环后85.92mA hg^(-1),2Ag^(-1)),优于原始的α-MnO_(2)阴极.这项基于生物启发设计理念的工作将为水合镁离子电池的发展提供创新方向.

关键词：镁离子电池复合电极生物启发传输动力学循环稳定性界面工程脱溶能垒

来源：评论

学校读者我要写书评

暂无评论

Phase quasi-random squares spiral zone plates with single-focus diffraction

引用

Journal of the Optical Society of America A 2025年第6期42卷 834-841页

作者： Huakui Hu Weifeng Wu Huajie Xu Guoping Shi Jiangtao Ding Hailiang Li Research Center of Integrated Circuits Design and Semiconductor Processing Material Chizhou College Chizhou 247000 China Anhui Research Center of Semiconductor Industry Generic Technology Chizhou 247000 China College of Mechanical and Electrical Engineering Chizhou College Chizhou 247000 China Key Laboratory of Microelectronic Devices and Integrated Technology Institute of Microelectronics Chinese Academy of Sciences Beijing 100029 China

Due to the existence of orbital angular momentum, an optical vortex generated from spiral zone plates is an important approach for studying physics and detecting matter. However, the unneeded high-order diffraction inherent in traditional spiral zone plates will add background noise, leading to complication in subsequent analysis. In this paper, a single-focus spiral zone plate with an approximately sinusoidal transmittance, called phase quasi-random squares spiral zone plates (PQRSZPs), is designed. The key idea of the PQRSZPs is to transform the three-dimensional sinusoidal structure of the sinusoidal spiral zone plates into a three-dimensional square structure with a phase difference of ${2}\pi$ , making it easy to fabricate. Theoretical analysis and experimental results confirm that the PQRSZPs can effectively remove high-order diffraction and increase the diffraction intensity of the wanted order. Moreover, the helical phase structure with multiple topological charges of the output beams is also demonstrated. Due to this unique property, there are widespread applications in astrophysics and imaging.

关键词： Diffractive optical elements Optical elements Optical vortex beams Phase plates Spatial light modulators Zone plates

来源：评论

学校读者我要写书评

暂无评论

Light quark energy loss in the flavor-dependent systems from holography

arXiv

引用

arXiv 2025年

作者： Zhang, Le Yin, Lu Zhou, Guo-Dong Fan, Chao-Jie Chen, Xun College of Physics and Electronic Science Hubei Normal University Huangshi435002 China Hubei Engineering Research Center for Micronano Optoelectronic Devices and Integration Huangshi435002 China Hubei Key Laboratory of Optoelectronic Conversion Materials and Devices Huangshi435002 China School of Nuclear Science and Technology University of South China Hengyang421001 China

Using the holographic model of finite-endpoint-momentum shooting string approach, we study the instantaneous energy loss of light quarks for the flavor-dependent systems with Nf = 0, Nf = 2, and Nf = 2 + 1 in the Einstein-Maxwell-dilaton (EMD) framework. In particular, we investigate for the first time the impact of the flavor content of the strongly coupled QGP medium on the instantaneous energy loss of light quarks. It turns out that the instantaneous energy loss of light quarks is smallest for Nf = 0, and adding u(d) quarks and s quark in the system increases this energy loss. In addition, we found that the instantaneous energy loss in the strongly coupled plasma is minimal near the critical temperature, but it increases as the system moves away from the critical endpoint due to rising temperature or chemical potential. Copyright © 2025, The Authors. All rights reserved.

关键词：

来源：评论

学校读者我要写书评

暂无评论

MXenes with functional N terminal group offer a covalent bond storage mechanism for anions

引用

Physical Review B 2024年第15期110卷 155401页

作者： Yingfang Li Jizhou Jiang Xiufang Li Meng Li Yujie Zheng Kuan Sun National Innovation Center for Industry-Education Integration of Energy Storage Technology MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems CQU-NUS Renewable Energy Materials & Devices Joint Laboratory School of Energy & Power Engineering School of Environmental Ecology and Biological Engineering Key Laboratory of Green Chemical Engineering Process of Ministry of Education Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education Novel Catalytic Materials of Hubei Engineering Research Center State Key Laborator of Biobased Materialand Green Papermaking Shandong Provincial Key Laboratory of Microbial Engineering Department of Bioengineering

Two-dimensional (2D) MXenes have made great achievements as electrodes and functional protective layers for alkali and alkaline earth metal ion batteries. However, their application in rechargeable anion batteries is lethally limited by the electrostatic repulsion between anions and surface terminal groups. Here, first-principles calculations were employed to investigate the effects and mechanism of MXenes surface terminal groups (OH, C, O, N, and P) on the storage of chloride anion and the electrochemical performance of their corresponding battery. Cl− can be successfully stored on the surface of N-terminated MXenes (Ti3C2N2) because a covalent bond can be formed between N and Cl. At the same time, Ti3C2N2 has a satisfactory theoretical capacity and open-circuit voltage of 1095mAhg−1 and 1.11 V, respectively, and meets the stringent requirements for rapid ion migration (1.15 eV) and high energy density (1215Whg−1) for cathode materials in anion batteries. Moreover, the N-terminal functional group of MXenes exhibits excellent performance on all halogen anion batteries. Even when the metallic element Ti is replaced with other metallic elements, these N-terminated MXenes show superior ability to store anions. Therefore, the N-terminal group is expected to bring spring to the application of MXenes in halogen anion batteries.

关键词： Electrochemical properties Energy materials Energy storage Surface states

来源：评论

学校读者我要写书评

暂无评论

Collective Transport for Nonlinear Current-Voltage Characteristics of Doped Conducting Polymers

引用

Physical Review Letters 2023年第17期130卷 177001-177001页

作者： Jiawei Wang Dongyang Liu Lishuai Yu Feilong Liu Jiebin Niu Guanhua Yang Congyan Lu Nianduan Lu Ling Li Ming Liu Key Laboratory of Microelectronic Devices and Integrated Technology Institute of Microelectronics of Chinese Academy of Sciences Beijing 100029 China University of Chinese Academy of Sciences Beijing 100049 China South China Academy of Advanced Optoelectronics South China Normal University Guangzhou 510006 People’s Republic of China

Origin of nonlinear transport phenomena in conducting polymers has long been a topic of intense controversies. Most previous knowledge has attributed the macroscopic nonlinear I−V characteristics to individual behaviors of elementary resistors in the network. In this Letter, we show via a systematic dimensionality-dependent transport investigation, that understanding the nonlinear transport in conducting polymers must include the collective transport effect in a percolation network. The possible mediation of percolation threshold pc by controlling the samples’ dimensionality unveiled the collective effect in growth of percolation paths driven by electric field, enabling us to draw a smooth connection between two typically observed nonlinear phenomena, dissipative tunnelinglike and threshold-limited transport, which have been controversial for years. The possible microscopic origins of the collective transport are discussed within the Coulomb blockade theory.

关键词： Electrical conductivity Percolation Conducting polymers

来源：评论

学校读者我要写书评

暂无评论

Opto-Electrical Decoupling of Phototransistors via Light-Induced Ferroelectric Depolarization for In-Sensor Computing

引用

ACS nano 2025年第22期19卷 2025 May 28页

作者： Guangcheng Wu Fenghao Yu Jiali Yi Huawei Liu Xiulian Fan Cheng Li Chenguang Zhu Xingxia Sun Yong Liu Qin Shuai Tanghao Xie Shengman Li Yu Zhou Dong Li Anlian Pan Key Laboratory for Micro-Nano Physics and Technology of Hunan Province State Key Laboratory of Chemo/Biosensing and Chemometrics Hunan Institute of Optoelectronic Integration College of Materials Science and Engineering Hunan University Changsha 410082 China. School of Information Science and Engineering Hunan University Changsha 410082 China. School of Physics Hunan Key Laboratory of Nanophotonics and Devices Central South University Changsha Hunan 410083 China. School of Physics and Electronics Hunan Normal University Changsha Hunan 410081 China.

Highly sensitive sensors are critical for in-sensor computing, an ultrafast and low-power machine vision technology. However, capturing sharp images without motion blur in low-light and high-speed situations remains challenging due to weak photoresponse. Here, we present a heterostructure ferroelectric phototransistor leveraging opto-electrical decoupling for fast perception and in-sensor computing. The channel is preprogrammed to a low-resistance state via ferroelectric polarization, while light modulates the drain current through light-induced ferroelectric depolarization. This mechanism enables a record-high MoTe-based photoresponsivity of 3.05×10 A/W by optimizing the balance between depolarization and screening fields. The sensors can perceive light pulses as short as 200 μs, achieving an operating frequency of 5 kHz and an energy consumption of 74 fJ. Utilizing a light-programmable neutral point, a 3 × 3 sensor array was developed as the optical kernel for scene-specific in-sensor computing, achieving a license plate recognition accuracy of 92.4% with significantly reduced motion blur. These results demonstrate the potential of this technology for high-speed, low-light machine vision applications.

关键词： CuInP2S6 ferroelectric In-sensor computing light-induced ferroelectric depolarization opto-electrical decoupling phototransistor

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：