Sensors and Actuators A-physical最新文献_第7页

Customized bending of pneumatic soft robotic arms based on cylinder balloons and constraint tapes 基于气瓶气球和约束带的气动软机械臂定制弯曲

IF 4.9 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical

Pub Date : 2025-12-23 DOI: 10.1016/j.sna.2025.117422

Yingli Li , Xuehai Liu , Song Yao , Yong Peng , Dong Shu

Pneumatic soft robotic arm has garnered significant attention due to its simple operation, lightweight design, and flexible control. The existing pneumatic soft arms achieve bidirectional or complex bending typically through multi-chamber assembling or complex cavity geometries. In order to achieve customized bending and avoid the complicated fabrication of air cavities, this study introduces an easy-to-manufacture and low cost pneumatic soft robotic arm (PSRA) composed of a cylindrical balloon attached with constraint tapes, inspired by the magical balloon. Under pneumatic actuation, this PSRA can easily achieve 360° bending in the plane, and it is capable of continuously extending in a helical form in space as its length increases. Moreover, various gripping modes and obstacle avoidance functions can be achieved by adjusting the size and location of the constraint tapes on the soft robotic arm. Despite lightweight (1.8 g), it demonstrates exceptional load-bearing capacity, with a load-bearing ratio of 333.3 times to its own weight. Through theoretical, simulation, and experimental investigations, this work systematically analyzes the bending behavior of the PSRA. Additionally, the winding, grasping and obstacle avoidance functions of the PSRA when employing straight and helical constraint tapes, either individually or in combination, are explored. The exceptional deformation capability of the PSRA enables it to be easily adapted for various functions, such as the detection of narrow confined spaces. This study provides a novel approach and guidance for the design of pneumatic soft robotic arms.

气动软机械臂因其操作简单、设计轻便、控制灵活等优点而受到广泛关注。现有的气动软臂通常通过多腔装配或复杂腔几何形状来实现双向或复杂弯曲。为了实现定制弯曲，避免气腔的复杂制造，本研究以神奇气球为灵感，介绍了一种易于制造和低成本的气动柔性机械臂（PSRA），该机械臂由圆柱形气球连接约束带组成。在气动驱动下，该PSRA可以在平面上轻松实现360°弯曲，并且随着其长度的增加，它能够在空间上以螺旋形式连续延伸。此外，通过调整柔性机械臂上约束带的大小和位置，可以实现各种抓取方式和避障功能。尽管重量轻（1.8 g），但它表现出了卓越的承载能力，其承载比为自身重量的333.3倍。通过理论、模拟和实验研究，系统地分析了PSRA的弯曲行为。此外，当使用直线和螺旋约束带时，无论是单独还是组合，都探索了PSRA的缠绕，抓取和避障功能。PSRA的特殊变形能力使其能够轻松适应各种功能，例如检测狭窄的密闭空间。该研究为气动柔性机械臂的设计提供了新的思路和指导。

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引用次数: 0

Single band ratiometric luminescence thermometry based on Eu3+-doped KY3F10 and RbY2F7 nanoparticles 基于Eu3+掺杂KY3F10和RbY2F7纳米颗粒的单波段比例发光测温

IF 4.9 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical

Pub Date : 2025-12-22 DOI: 10.1016/j.sna.2025.117417

Mikhail A. Kurochkin , Kirill S. Prichisly , Nikita A. Bogachev , Andrey S. Mereshchenko , Ilya E. Kolesnikov

Luminescence thermometry has been widely recognized as one of the most promising techniques for remote temperature sensing, particularly in scenarios where traditional contact methods are impractical. Currently, many scientific groups are searching for novel materials and approaches to improve the performance of the proposed luminescence thermometers. Here, Eu³⁺-doped fluoride nanoparticles, namely KY₃F₁₀ and RbY₂F₇, have been successfully used for temperature sensing based on the single band ratiometric method. The chosen approach can be realized with simpler equipment compared to the widely spread standard ratiometric method based on two emission lines, which is crucial for real application. The results obtained show that both Eu³⁺-doped sensors provide a reliable temperature sensing over a wide thermal range of 298–873 K. The best relative thermal sensitivity was found to be 1.48 % K⁻¹@298 K (KY₃F₁₀:Eu³⁺), while the temperature resolution was 1.27 K (RbY₂F₇:Eu³⁺).

发光测温已被广泛认为是最有前途的远程温度传感技术之一，特别是在传统接触方法不切实际的情况下。目前，许多科学团体正在寻找新的材料和方法来改善所提出的发光温度计的性能。本研究成功地将Eu3+掺杂的氟纳米颗粒KY3F10和RbY2F7用于基于单波段比例法的温度传感。与广泛采用的基于两条发射线的标准比率法相比，所选方法可以用更简单的设备实现，这对实际应用至关重要。结果表明，这两种掺杂Eu3+的传感器在298-873 K的宽热范围内提供了可靠的温度传感。最佳相对热敏度为1.48 % K−1@298 K (KY3F10:Eu3+)，温度分辨率为1.27 K （RbY2F7:Eu3+）。

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引用次数: 0

Liquid metal-based whisker sensor with self-healing interfaces for underwater instantaneous contact localization 具有自修复接口的液体金属晶须传感器，用于水下瞬时接触定位

IF 4.9 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical

Pub Date : 2025-12-22 DOI: 10.1016/j.sna.2025.117420

Tianrun Wang , Tangzhen Guan , Zinan Guo , Changle Miao , Xingfu Wan , Hao Jin , Yuanzheng Li , Xiaotong Gu , Jianhua Liu , Peng Xu

Underwater sensing technologies face significant challenges due to environmental noise, water turbidity, and multipath interference that can hinder reliable data acquisition. To overcome these limitations, we present a novel Liquid Metal-Based Whisker Sensor (LMWS), whose design is inspired by the vibrissae of sea lions. The sensor incorporates a liquid metal-embedded elastomer (LMEE) that acts as an advanced triboelectric material. This design offers outstanding flexibility, intrinsic self-healing properties, and reliable performance under extreme conditions, including subzero temperatures (-7°C) and high hydrostatic pressures (up to 3 MPa at 300 m depth). Our experimental evaluations demonstrate an electrical self-repair efficiency of 88.7 %, a sensitivity of 0.25 V/mm, and a signal-to-noise ratio of 19.6 dB. In addition to mimicking biological detection mechanisms, the LMWS provides a robust solution for improving underwater sensing capabilities. Its integration into remotely operated vehicles (ROVs) shows promise for enhanced navigation and obstacle detection in challenging deep-sea environments, paving the way for future developments in marine exploration and environmental monitoring. These advances represent a significant leap in underwater sensor technology.

由于环境噪声、水浊度和多径干扰会阻碍可靠的数据采集，水下传感技术面临着重大挑战。为了克服这些限制，我们提出了一种新型的基于液态金属的须传感器（LMWS），其设计灵感来自海狮的触须。该传感器集成了液态金属嵌入弹性体（LMEE），作为一种先进的摩擦电材料。这种设计具有出色的灵活性、内在的自愈特性，以及在极端条件下的可靠性能，包括零下温度（-7°C）和高静水压力（300 m深，高达3 MPa）。我们的实验评估表明，电自修复效率为88.7 %，灵敏度为0.25 V/mm，信噪比为19.6 dB。除了模拟生物探测机制外，LMWS还为提高水下传感能力提供了强大的解决方案。将其集成到远程操作车辆（rov）中，有望在具有挑战性的深海环境中增强导航和障碍物检测，为海洋勘探和环境监测的未来发展铺平道路。这些进步代表了水下传感器技术的重大飞跃。

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引用次数: 0

High-performance piezoelectric nanogenerator based on PVDF/2D layered Mo₃AlC₂ composites for sustainable energy harvesting applications 基于PVDF/2D层状Mo₃AlC₂复合材料的高性能压电纳米发电机用于可持续能量收集应用

IF 4.9 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical

Pub Date : 2025-12-19 DOI: 10.1016/j.sna.2025.117415

Komal Kukreja , Shewli Pratihar , Prasanta K. Panda , Prasanna Kumar S Mural

With advancements in science and nanotechnology, smart wearables have emerged as a promising research area due to their ability to harvest energy by converting waste mechanical energy into electrical energy using nanogenerators. These devices find applications in sensors, batteries, supercapacitors, and electronic textiles. Smart wearables can be fabricated using piezoelectric polymers, among which polyvinylidene fluoride (PVDF) is widely recognized for its electroactive β-phase, responsible for generating voltage potential in the presence of an external electric field. In this work, PVDF-based piezoelectric nanogenerators comprised with Molybdenum Aluminum Carbide (Mo₃AlC₂) are fabricated. Molybdenum Aluminum Carbide (Mo₃AlC₂), a two-dimensional (2D) ternary carbide and nitride, has a distinct set of ceramic and metallic characteristics. Pure PVDF and composites were then characterized to compare their structural, thermal, and electrical properties, such as dielectric, ferroelectric, and piezoelectric behaviors. Among the prepared samples, the PVDF composite with 5 wt% Mo₃AlC₂ particles (5 % PMAC) exhibited the best performance for energy harvesting. The 5 % PMAC composite showed a piezoelectric coefficient (d₃₃) of about 23 pm/V and a polar phase fraction of 76.4 %, whereas the pure PVDF showed a d₃₃ value of about 12 pm/V and a polar phase fraction of 66.8 %. Under a 25 N periodic mechanical force at a frequency of 15 Hz, the 5 % PMAC-based composite generated a peak voltage and current of 13.8 V and 1.2 µA, respectively, whereas the pure PVDF film generated 4.84 V and 0.7 µA under the same applied force. The 5 % PMAC composite with the optimal percent attained the highest power output of 1.76 µW and successfully powered capacitors, lit up LEDs, and facilitated real-time monitoring of human motion. These results demonstrate the promise of PVDF/Mo₃AlC₂ composites for a variety of applications, such as harvesting human motion energy and energizing low-energy electronic devices.

随着科学和纳米技术的进步，智能可穿戴设备已经成为一个有前途的研究领域，因为它们能够通过使用纳米发电机将废弃的机械能转化为电能来收集能量。这些设备在传感器、电池、超级电容器和电子纺织品中都有应用。智能可穿戴设备可以使用压电聚合物制造，其中聚偏氟乙烯（PVDF）因其具有电活性的β相而被广泛认可，该β相负责在外电场存在下产生电压电位。在这项工作中，制作了由钼铝碳化物（Mo₃AlC₂）组成的pvdf基压电纳米发电机。钼铝碳化物（Mo₃AlC₂）是一种二维（2D）三元碳化物和氮化物，具有独特的陶瓷和金属特性。然后对纯PVDF和复合材料进行表征，比较它们的结构、热学和电学性能，如介电、铁电和压电行为。在制备的样品中，含有5 wt% Mo₃AlC₂颗粒（5 % PMAC）的PVDF复合材料的能量收集性能最好。5 % PMAC复合材料的压电系数（d₃₃）约为23 pm/V，极性相分数为76.4 %，而纯PVDF的d₃₃值约为12 pm/V，极性相分数为66.8 %。在频率为15 Hz、频率为25 N的周期性机械力作用下，5 % pmac基复合材料产生的峰值电压和电流分别为13.8 V和1.2 µa，而纯PVDF膜在相同的力作用下产生的峰值电压和电流分别为4.84 V和0.7 µa。5 %的PMAC复合材料达到了1.76 µW的最高输出功率，并成功地为电容器供电，点亮led，并促进了对人体运动的实时监控。这些结果证明了PVDF/Mo₃AlC₂复合材料在各种应用中的前景，例如收集人体运动能量和为低能量电子设备供电。

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引用次数: 0

Development of wideband bolometer based on polymer nanocomposite for microwave field-distribution mapping 基于聚合物纳米复合材料的微波场分布测绘宽带测热计研制

IF 4.9 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical

Pub Date : 2025-12-19 DOI: 10.1016/j.sna.2025.117416

Abhishek Anand Ukey, C.V. Krishnamurthy, V. Subramanian

A wideband microwave bolometer array is presented that employs an in-house developed microwave absorber with a commercial thermistor as the sensing element. The array generates a temperature map by absorbing the incident microwave energy, enabling the determination of spatial energy distribution by scanning the incident microwave field. Material synthesis and characteristics of the microwave absorber are described. The characteristics of the thermistor, the construction of the sensor array system, and the resistance-temperature mapping are presented. The microwave responsivity and noise of the composite sensor pixels are evaluated for a frequency range of 8–40 GHz. The performance of the array is demonstrated by mapping the unperturbed and perturbed spatial energy distributions across a waveguide aperture that operates in the TE₁₀ mode at a low input power of 10 mW, exhibiting strong agreement with simulations. The proposed array offers a passive solution for characterizing complex microwave fields.

提出了一种宽带微波辐射热计阵列，该阵列采用自主研制的微波吸收体和商用热敏电阻作为传感元件。阵列通过吸收入射微波能量生成温度图，通过扫描入射微波场确定空间能量分布。介绍了微波吸收材料的合成及其特性。介绍了热敏电阻的特性、传感器阵列系统的结构和电阻-温度映射。在8-40 GHz频率范围内对复合传感器像素的微波响应度和噪声进行了评估。在TE10模式下，在10 mW的低输入功率下，通过绘制无扰动和受扰动的波导孔径空间能量分布来证明该阵列的性能，显示出与模拟的强烈一致性。该阵列为复杂微波场的表征提供了无源解决方案。

引用次数: 0

Design of soft glove for stroke patient rehabilitation using pretrained SMA actuators 基于预训练SMA致动器的脑卒中患者康复软手套设计

IF 4.9 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical

Pub Date : 2025-12-19 DOI: 10.1016/j.sna.2025.117414

Venkatesan Vellaiyan , Abdul Manan Khan , Vishwanath Bijalwan , Yogesh Singh , Buhyun Shin , Youngshik Kim

In this research, we design and develop a soft glove for post-stroke hand rehabilitation that incorporates a sinusoidal-pattern Shape Memory Alloy (SMA) actuators. We employ a finger-opening mechanism to address clenched position finger rehabilitation. The system is designed to meet the force and displacement requirements for finger rehabilitation while remaining lightweight, compliant, and compact. Two key structural parameters of the sinusoidal pattern, the actuator width and placement length, are investigated to determine the configuration that can produces the maximum force and displacement. Finally, the selected actuator is integrated into an exoskeleton prototype, and its performance is experimentally verified in terms of force and displacement. The developed actuator is suitable for post-stroke hand rehabilitation training, as it can generate a maximum force of 23 N. A Proportional Integral Derivative (PID) controller is adopted to demonstrate the control capability of the soft glove.

在这项研究中，我们设计并开发了一种用于中风后手部康复的软手套，该手套包含一个正弦模式形状记忆合金（SMA）致动器。我们采用手指打开机制来解决握紧位置手指的康复。该系统旨在满足手指康复的力和位移要求，同时保持轻巧、柔顺和紧凑。研究了正弦模式的两个关键结构参数，即执行器宽度和放置长度，以确定能够产生最大力和位移的配置。最后，将所选择的驱动器集成到外骨骼原型中，并在力和位移方面对其性能进行了实验验证。所开发的执行器适用于中风后手部康复训练，最大可产生23 n的力。采用比例积分导数（PID）控制器来演示软手套的控制能力。

引用次数: 0

A tactile sensing capsule endoscope employing force sensing cantilevers for tumor diagnosis in the GI tract 采用力传感悬臂梁的触觉传感胶囊内窥镜用于胃肠道肿瘤诊断

IF 4.9 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical

Pub Date : 2025-12-18 DOI: 10.1016/j.sna.2025.117391

Furkan Peker , Ö. Gökalp Akcan , Dila Atak , Ibrahim H. Ozata , Derya S. Uymaz , Emre Balik , Müjdat Zeybel , Hamdi Torun , Onur Ferhanoğlu

The correlation between tissue elasticity and histopathological diagnosis has brought attention to the development of biomedical devices for in-vivo measurement of tissue biomechanical properties. Towards this aim, we have developed a tactile sensing capsule endoscope to measure tissue Young’s modulus, in situ. Inspired by force microscopy, the capsule comprises four cantilevers that probe the walls of the GI tract using a single miniaturized actuator. The force exerted on the cantilever tip by the tissue is measured using the piezoelectric layer integrated on the cantilevers. The tactile-based modulus sensing capsule was initially tested on ex-vivo animal tissue, followed by healthy and cancerous human specimens. The results clearly delineate the differences in mechanical properties, with a Young’s modulus of 11.3

\pm

2.3 kPa for healthy and 26.8

\pm

4.6 kPa for cancerous tissue. Overall, in the realm of tactile-based modulus sensing of tissues, our technology uniquely combines localized, quantitative Young’s modulus measurements with the capability to perform multiple measurements throughout the GI tract wall in a single procedure. Moreover, the developed sensor has a compact form factor, in accordance with the capsule dimensions, and simple manufacturing steps using stereolithography. With further improvements, the developed medical device can be utilized as a non-invasive diagnostic tool in the clinic.

组织弹性与组织病理学诊断之间的相关性引起了人们对生物医学设备的关注，这些设备用于体内测量组织的生物力学特性。为了实现这一目标，我们开发了一种触觉传感胶囊内窥镜来原位测量组织杨氏模量。受力显微镜的启发，胶囊由四个悬臂组成，使用一个微型驱动器探测胃肠道壁。利用集成在悬臂梁上的压电层测量组织施加在悬臂顶端的力。这种基于触觉的模量传感胶囊首先在离体动物组织上进行了测试，然后在健康和癌变的人体样本上进行了测试。结果清楚地描述了力学性能的差异，健康组织的杨氏模量为11.3±2.3 kPa，癌组织的杨氏模量为26.8±4.6 kPa。总的来说，在基于触觉的组织模量传感领域，我们的技术独特地结合了局部、定量的杨氏模量测量，以及在一次手术中对整个胃肠道壁进行多次测量的能力。此外，开发的传感器具有紧凑的外形因素，与胶囊尺寸一致，并且使用立体光刻技术的制造步骤简单。经进一步改进，所研制的医疗器械可作为临床无创诊断工具使用。

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引用次数: 0

Design of all-optical logic gates based on Eu³⁺-doped rare-earth luminescent materials 基于Eu³+掺杂稀土发光材料的全光逻辑门设计

IF 4.9 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical

Pub Date : 2025-12-18 DOI: 10.1016/j.sna.2025.117410

Mingzhe Zhang , Quanwang Niu , Xiyuan Chen , Xiaohong Yan , Xiangfu Wang

All-optical logic gates eliminate the signal loss associated with electro–optical conversion and provide an effective pathway toward high-speed and low-power information processing. In this work, we design all-optical logic gates based on the photoluminescence response of Eu^3 + -doped Na_0.5Gd_1.5SbTiO₇. The switching states of 257 nm and 275 nm light sources with fixed luminous intensities are used as logic gate inputs. The gate outputs are defined by the ratios of red (R) and orange (O) emission intensities relative to the excitation light and their R/O intensity ratios. By setting suitable intensity thresholds, basic logic functions such as “AND” and “OR” gates can be realized. Building on this, temperature and doping concentration are incorporated as additional input variables. Through the combination of threshold settings and the observed changes in luminescence, more complex logic functions including “XNOR”, “OR”, and “AND” gates are realized. Furthermore, by integrating the designed “XNOR” and “AND” logic gates, the functions of a half-adder and half-subtractor are successfully demonstrated, based on the principles of digital logic computation. This work illustrates the application potential of Eu³⁺ ion-doped composite oxide photoluminescent materials in the fundamental modules of optical computing and offers novel insights into achieving functional integration and stable performance in high-efficiency optical logic devices.

全光逻辑门消除了与电光转换相关的信号损耗，为实现高速低功耗信息处理提供了有效途径。在这项工作中，我们基于Eu3 +掺杂Na0.5Gd1.5SbTiO7的光致发光响应设计了全光逻辑门。采用固定发光强度的257 nm和275 nm光源的开关状态作为逻辑门输入。栅极输出由红色(R)和橙色(O)发射强度相对于激发光的比值及其R/O强度比来定义。通过设置合适的强度阈值，实现与门、或门等基本逻辑功能。在此基础上，将温度和掺杂浓度作为额外的输入变量。通过阈值设置与观测到的发光变化相结合，实现了“异或”、“或”、“与”门等更复杂的逻辑功能。此外，基于数字逻辑计算原理，通过集成所设计的“XNOR”和“and”逻辑门，成功地演示了半加法器和半减法器的功能。这项工作说明了Eu3+离子掺杂复合氧化物光致发光材料在光学计算基础模块中的应用潜力，并为实现高效光学逻辑器件的功能集成和稳定性能提供了新的见解。

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引用次数: 0

High sensitivity and low temperature crosstalk alpha-fetoprotein detection using tunable dispersion turning point microfiber through optimized hydrofluoric acid etching process 采用优化的氢氟酸蚀刻工艺，利用可调色散拐点微光纤进行高灵敏度低温串扰甲胎蛋白检测

IF 4.9 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical

Pub Date : 2025-12-18 DOI: 10.1016/j.sna.2025.117403

Jiajia Shi , Yun Peng , Conghai Ge , Guangyu Song , Yong Zhao , IEEE Member

A tunable dispersion turning point (DTP) microfiber sensor was fabricated through a three-step process involving discharge-melting, fiber tapering, and hydrofluoric acid (HF) etching. The DTP was finely adjusted by controlling both the refractive index (RI) of the etching solution and the etching duration, enabling optimization for biomarker detection. The sensor exhibited a high RI sensitivity of up to 21652 nm/RIU. Experimental results for alpha-fetoprotein (AFP) detection indicated that the DTP biosensor has a linear concentration range from 1 × 10⁻⁹ μg/mL to 1 × 10⁻² μg/mL (R² = 0.996), with an AFP detection sensitivity of 2.039 nm/log(μg/mL). The limit of detection (LOD) for AFP in phosphate-buffered saline (PBS) was determined to be 3.04 × 10⁻¹⁰ μg/mL. Owing to its high sensitivity, low LOD, broad linear detection range, minimal temperature interference, and compatibility with in situ detection, the sensor demonstrates strong potential for trace-level AFP analysis. This platform offers a cost-effective and highly sensitive approach for early-stage liver cancer diagnosis and disease monitoring, thereby contributing to the broader implementation of early cancer screening strategies.

采用放电熔化、光纤变细和氢氟酸蚀刻三步法制备了可调谐色散拐点（DTP）微光纤传感器。通过控制蚀刻溶液的折射率（RI）和蚀刻时间，可以精细地调整DTP，从而优化生物标志物的检测。该传感器具有较高的RI灵敏度，最高可达21652 nm/RIU。甲胎蛋白（AFP）检测实验结果表明，DTP生物传感器在1 × 10−9 μg/mL ~ 1 × 10−2 μg/mL范围内呈线性关系（R2 = 0.996），检测灵敏度为2.039 nm/log（μg/mL）。测定磷酸缓冲盐水（PBS）中AFP的检出限（LOD）为3.04 × 10−10 μg/mL。由于其高灵敏度、低LOD、宽线性检测范围、最小温度干扰以及与原位检测的兼容性，该传感器显示出痕量AFP分析的强大潜力。该平台为早期肝癌诊断和疾病监测提供了一种具有成本效益和高灵敏度的方法，从而有助于更广泛地实施早期癌症筛查策略。

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引用次数: 0

ZnO/Ti3C2Tx MXene nanocomposites prepared by magnetic filtration cathode vacuum arc deposition for triethylamine sensors 磁过滤阴极真空电弧沉积制备三乙胺传感器用ZnO/Ti3C2Tx MXene纳米复合材料

IF 4.9 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical

Pub Date : 2025-12-18 DOI: 10.1016/j.sna.2025.117388

Jiangfeng Ren , Hao Sheng , Zeyu Yin , Sen Chen , Shaohua Zhang , Yangbin Liu , Shuai Wu , Wenjiao Zhang , Bin Liao , Xiao Ouyang , Qingyan Hou , Xiaoping Ouyang

In the past, the monitoring system of toxic and harmful gases such as triethylamine (TEA) in the industrial environment was not perfect enough, and with the development of human society, the requirements for environmental friendliness and sustainable development are constantly improving, so the development of a simple, effective and ideal performance of a new TEA gas sensor has become an urgent problem to be solved. In this study, ZnO/Ti₃C₂T_x gas sensor was prepared by magnetic filtration cathode vacuum arc (FCVA) deposition method for TEA detection. Gas-sensing measurements demonstrated that the response of the present gas sensor is 44.3 for 100 ppm TEA gas at 160°C, and the detection limit is as low as 5 ppm. Moreover, it showed remarkable selectivity and long-term stability. The excellent gas sensing performance can be attributed to the abundant electron transport channels of ZnO/Ti₃C₂T_x and the formation of heterojunctions. This work provides a new way to prepare gas sensors at low temperatures, which is of great significance for solving the problem of air pollution.

过去工业环境中对三乙胺（TEA）等有毒有害气体的监测系统不够完善，而随着人类社会的发展，对环境友好和可持续发展的要求也在不断提高，因此开发一种简单、有效、性能理想的新型TEA气体传感器成为迫切需要解决的问题。本研究采用磁过滤阴极真空电弧（FCVA）沉积法制备了用于TEA检测的ZnO/Ti3C2Tx气体传感器。气敏测量表明，该气体传感器在160℃下对100 ppm TEA气体的响应为44.3，检测限低至5 ppm。此外，它还具有显著的选择性和长期稳定性。优异的气敏性能可归因于ZnO/Ti3C2Tx丰富的电子传递通道和异质结的形成。本工作为低温下制备气体传感器提供了一条新途径，对解决大气污染问题具有重要意义。

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引用次数: 0