A Flexible Pressure Sensor Based on Low-Cost Electroplated-Ni Film Induced Cracking for Wearable Devices Application

Shi, Jianhao; Li, Hongfang; Sun, Bin; Zhao, Xiaolin; Ding, Guifu; Yang, Zhuoqing

doi:10.1109/nems.2018.8556914

Cited by 6 publications

(7 citation statements)

References 9 publications

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“…[36] It is worth noticing that Shi et al developed a new method to fabricate piezoelectric pressure sensors by electroplating Ni film on PI (polyimide) matrix. When pressing the sensor, microcracks will occur on the tip of the Ni layer, resulting in the change of resistance [37].…”

Section: Resistive Principlementioning

confidence: 99%

“…that Shi et al developed a new method to fabricate piezoelectric pressure sensors by electroplating Ni film on PI (polyimide) matrix. When pressing the sensor, microcracks will occur on the tip of the Ni layer, resulting in the change of resistance [37]. The optical microscope images of different cracks within PEDOT:PSS−PDMS sensors, which could improve the temperature sensitivity and the application of health detection.…”

Section: Resistive Principlementioning

confidence: 99%

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Wearable Multi-Functional Sensing Technology for Healthcare Smart Detection

Deng

Wen

et al. 2022

Micromachines

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In recent years, considerable research efforts have been devoted to the development of wearable multi-functional sensing technology to fulfill the requirements of healthcare smart detection, and much progress has been achieved. Due to the appealing characteristics of flexibility, stretchability and long-term stability, the sensors have been used in a wide range of applications, such as respiration monitoring, pulse wave detection, gait pattern analysis, etc. Wearable sensors based on single mechanisms are usually capable of sensing only one physiological or motion signal. In order to measure, record and analyze comprehensive physical conditions, it is indispensable to explore the wearable sensors based on hybrid mechanisms and realize the integration of multiple smart functions. Herein, we have summarized various working mechanisms (resistive, capacitive, triboelectric, piezoelectric, thermo-electric, pyroelectric) and hybrid mechanisms that are incorporated into wearable sensors. More importantly, to make wearable sensors work persistently, it is meaningful to combine flexible power units and wearable sensors and form a self-powered system. This article also emphasizes the utility of self-powered wearable sensors from the perspective of mechanisms, and gives applications. Furthermore, we discuss the emerging materials and structures that are applied to achieve high sensitivity. In the end, we present perspectives on the outlooks of wearable multi-functional sensing technology.

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Section: Resistive Principlementioning

confidence: 99%

Section: Resistive Principlementioning

confidence: 99%

Wearable Multi-Functional Sensing Technology for Healthcare Smart Detection

Deng

Wen

et al. 2022

Micromachines

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“…Also, Mg has recently been employed as a contact due to its biocompatibility (Figure 2a). In addition, metal thin films can be easily deposited on flexible substrates through conventional techniques such as electroplating [37][38][39], sputtering [15,23], thermal/e-beam evaporation [9,22,40], and solution methods [19,41,42]. Nevertheless, although these materials are adequate for flexible applications, they are not easily employable in stretchable scenarios in the form of thin films, unless delicate substrate modifications are applied [32,43,44].…”

Section: Metalsmentioning

confidence: 99%

“…The various approaches in fabricating pressure sensors include resistive types [7,21,39,70,95,104,127,136,208,296,[413][414][415][416][417][418][419][420][421][422][423], capacitive types [25,71,146,303,310,321,352,[424][425][426][427], field-effect transistors [9][10][11]193,428], and the piezocapacitive and piezoelectric properties of materials [214,[429][430][431]. Pressure sensors' most important parameters are sensitivity, detection range and response time.…”

Section: Pressure Sensorsmentioning

confidence: 99%

Flexible Sensors—From Materials to Applications

et al. 2019

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Flexible sensors have the potential to be seamlessly applied to soft and irregularly shaped surfaces such as the human skin or textile fabrics. This benefits conformability dependant applications including smart tattoos, artificial skins and soft robotics. Consequently, materials and structures for innovative flexible sensors, as well as their integration into systems, continue to be in the spotlight of research. This review outlines the current state of flexible sensor technologies and the impact of material developments on this field. Special attention is given to strain, temperature, chemical, light and electropotential sensors, as well as their respective applications.

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“…Flexible sensors convert external deformation signals into electrical signals. MEMS sensors can achieve almost all sensory functions of the human body, including vision, hearing, taste, smell (such as the Honeywell electronic nose) and touch, which play an important role in health monitoring, motion monitoring, swallowing speech monitoring and intelligent rehabilitation [23][24][25][26][27][28][29]. With the development of micro coils, people can directly obtain certain body information in a convenient, fast, and friendly way.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in the Preparation Technologies for Micro Metal Coils

et al. 2022

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The recent development of micro-fabrication technologies has provided new methods for researchers to design and fabricate micro metal coils, which will allow the coils to be smaller, lighter, and have higher performance than traditional coils. As functional components of electromagnetic equipment, micro metal coils are widely used in micro-transformers, solenoid valves, relays, electromagnetic energy collection systems, and flexible wearable devices. Due to the high integration of components and the requirements of miniaturization, the preparation of micro metal coils has received increasing levels of attention. This paper discusses the typical structural types of micro metal coils, which are mainly divided into planar coils and three-dimensional coils, and the characteristics of the different structures of coils. The specific preparation materials are also summarized, which provides a reference for the preparation process of micro metal coils, including the macro-fabrication method, MEMS (Micro-Electro-Mechanical System) processing technology, the printing process, and other manufacturing technologies. Finally, perspectives on the remaining challenges and open opportunities are provided to help with future research, the development of the Internet of Things (IoTs), and engineering applications.

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A Flexible Pressure Sensor Based on Low-Cost Electroplated-Ni Film Induced Cracking for Wearable Devices Application

Cited by 6 publications

References 9 publications

Wearable Multi-Functional Sensing Technology for Healthcare Smart Detection

Wearable Multi-Functional Sensing Technology for Healthcare Smart Detection

Flexible Sensors—From Materials to Applications

Recent Progress in the Preparation Technologies for Micro Metal Coils

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