Inkjet-printed flexible sensors: From function materials, manufacture process, and applications perspective

Wang, Xuepei; Zhang, Mengjie; Zhang, Luwei; Xu, Jinchao; Xiao, Xinqing; Zhang, Xiaoshuan

doi:10.1016/j.mtcomm.2022.103263

Cited by 81 publications

(53 citation statements)

References 198 publications

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“…This work provides a research avenue for the practical application of flexible DMPS in the fruit field. 60 As assessed earlier, the prepared flexible DMPS has sufficient flexibility and pressure sensing capability. To verify the potential of its piezocapacitive properties in practical applications, it was immobilized on the finger to sense the grip of different fruits (Figure 5a).…”

Section: Resultsmentioning

confidence: 76%

“…ADS1115 provides four channels, 16-bit resolution, and programmable gain adjustment, while the MCU integrates a low-energy Bluetooth module, which does not require an external wireless transceiver, to provide remote monitoring of fruit ripeness grading. This work provides a research avenue for the practical application of flexible DMPS in the fruit field …”

Section: Resultsmentioning

confidence: 99%

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Flexible Dual-Mechanism Pressure Sensor Based on Ag Nanowire Electrodes for Nondestructive Grading and Quality Monitoring of Fruits

Xia

Wang

Kong

et al. 2022

ACS Appl. Nano Mater.

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To extend the application range of flexible pressure sensors and to be widely used as an economical and convenient way, researchers have made efforts toward high sensitivity, wide detection range, and low power consumption. However, most sensors can only work based on a single mechanism, thus limiting the sensing range and applicability. In view of this, we developed a dual-mechanism pressure sensor (DMPS) based on Ag nanowire/PDMS electrodes and ZnO nanoparticle-based force-sensitive membranes, which has a sandwich structure and complete flexibility under the effect of chemical bonding. It can simultaneously sense high-frequency dynamic pressure as well as static load by integrating piezoelectric and piezocapacitive effects, thereby complementing the inability of conventional piezoelectric-type sensors to continuously detect static pressure. The prepared flexible DMPS containing 20 wt % ZnO nanofiller has a pressure frequency-independent electrical output of about 2 V under 20 N force conditions and also has a long-term stability of more than 5000 pressure cycles. Moreover, it exhibits good linearity, repeatability, and stability in the 0–100 kPa detection range in the piezocapacitive mode. On the basis of multimechanism and modularity, the flexible DMPS was demonstrated for fruit quality monitoring, including avocado ripeness grading, tactile sensory gloves, and moisture loss assessment, indicating its promising applications in intelligent agricultural machines and wearable sensing systems.

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Section: Resultsmentioning

confidence: 76%

Section: Resultsmentioning

confidence: 99%

Flexible Dual-Mechanism Pressure Sensor Based on Ag Nanowire Electrodes for Nondestructive Grading and Quality Monitoring of Fruits

Xia

Wang

Kong

et al. 2022

ACS Appl. Nano Mater.

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“…The electrically functionalized textile substrate of different forms ranging from fiber/filament to fabric/garment can be achieved via different approaches, i.e., coating (dip-coating [65,66], spray coating [67,68], ultrasonic coating [69,70], knife coating [71,72], spin coating [73,74], etc. ), printing (screen printing [75,76], inkjet printing [77,78], extrusion printing [79,80], gravure printing [81,82], laser printing [83,84], stencil printing [85,86], 3D printing [87,88], etc. ), electrospinning (melt spinning [89,90], dry spinning [91,92], wet spinning [93,94], etc.…”

Section: Introductionmentioning

confidence: 99%

Advances in the Robustness of Wearable Electronic Textiles: Strategies, Stability, Washability and Perspective

Sadi

Kumpikaitė

2022

Nanomaterials

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Flexible electronic textiles are the future of wearable technology with a diverse application potential inspired by the Internet of Things (IoT) to improve all aspects of wearer life by replacing traditional bulky, rigid, and uncomfortable wearable electronics. The inherently prominent characteristics exhibited by textile substrates make them ideal candidates for designing user-friendly wearable electronic textiles for high-end variant applications. Textile substrates (fiber, yarn, fabric, and garment) combined with nanostructured electroactive materials provide a universal pathway for the researcher to construct advanced wearable electronics compatible with the human body and other circumstances. However, e-textiles are found to be vulnerable to physical deformation induced during repeated wash and wear. Thus, e-textiles need to be robust enough to withstand such challenges involved in designing a reliable product and require more attention for substantial advancement in stability and washability. As a step toward reliable devices, we present this comprehensive review of the state-of-the-art advances in substrate geometries, modification, fabrication, and standardized washing strategies to predict a roadmap toward sustainability. Furthermore, current challenges, opportunities, and future aspects of durable e-textiles development are envisioned to provide a conclusive pathway for researchers to conduct advanced studies.

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“… 6 As a non-smooth and memoryless phenomenon, hysteresis is a common problem in the humidity sensor application based on adsorption and desorption, and it is particularly prominent in the humidity measurement. 7 , 8 When the hysteresis exists in measuring systems, the inputs of sensors become unknow in practice since the sensors are usually used to measure various output signals. As a result, the system usually exhibits undesirable inaccuracies or even instability.…”

Section: Introductionmentioning

confidence: 99%

“…Humidity sensors, as a device to sense humidity and convert it into an output signal according to certain rules, have been widely used in various fields including industrial production, environmental monitoring, precision agriculture, health care, wearable devices, and internet of things . As a non-smooth and memoryless phenomenon, hysteresis is a common problem in the humidity sensor application based on adsorption and desorption, and it is particularly prominent in the humidity measurement. , When the hysteresis exists in measuring systems, the inputs of sensors become unknow in practice since the sensors are usually used to measure various output signals. As a result, the system usually exhibits undesirable inaccuracies or even instability .…”

Section: Introductionmentioning

confidence: 99%

Hysteresis Dynamic Modeling and Analysis of Flexible Nano Silver–Polyvinyl Alcohol Humidity Sensor Based on the Microscopic Process and Langmuir–Fick Theory

Xia

Wang

et al. 2022

ACS Omega

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In recent years, advances in materials science and manufacturing technologies have facilitated the development of flexible sensors. However, there are still performance gaps between emerging flexible sensors and traditional silicon-based rigid sensors, especially lacking dynamic modeling and optimization analysis for addressing above challenges. This paper describes a hysteresis dynamic modeling method for flexible humidity sensors. Through inkjet printing and coating methods, the polyvinyl alcohol (PVA) sensitive layer and nano silver interdigital electrode are fabricated on flexible polyethylene naphthalate substrates. The performance characterization results show that the sensitivity and maximum hysteresis within the range of 12–98% relative humidity (RH) are −0.02167 MΩ/% RH and 2.7% RH, respectively. The sensor also has outstanding dynamic response ability and stability in a wide range of humidity variation. The hysteresis mechanism of flexible humidity sensors is theoretically analyzed from microscopic hysteresis processes, Langmuir monomolecular adsorption dynamic modeling, and Fick diffusion dynamic modeling. These hysteresis models provide a path for the hysteresis optimization of flexible PVA humidity sensors. Further exploration of the diffusion rate of water molecules and the proportion of PVA in ink represents promising hysteresis optimization directions of flexible humidity sensors based on PVA-sensitive material.

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Inkjet-printed flexible sensors: From function materials, manufacture process, and applications perspective

Cited by 81 publications

References 198 publications

Flexible Dual-Mechanism Pressure Sensor Based on Ag Nanowire Electrodes for Nondestructive Grading and Quality Monitoring of Fruits

Flexible Dual-Mechanism Pressure Sensor Based on Ag Nanowire Electrodes for Nondestructive Grading and Quality Monitoring of Fruits

Advances in the Robustness of Wearable Electronic Textiles: Strategies, Stability, Washability and Perspective

Hysteresis Dynamic Modeling and Analysis of Flexible Nano Silver–Polyvinyl Alcohol Humidity Sensor Based on the Microscopic Process and Langmuir–Fick Theory

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