Recent Advances in the Development of Flexible Sensors: Mechanisms, Materials, Performance Optimization, and Applications

Qin, Yitong; Wang, Zhen; Chen, Yu; Ge, Zhixing

doi:10.1007/s11664-022-09922-y

Cited by 18 publications

(12 citation statements)

References 339 publications

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“…With the rapid development of modern science and technology, electronic skin, − human–computer interaction, − human motion monitoring, and health monitoring − have gradually become a concern of discussion and study. The sensors used in human body monitoring need to have good flexibility, wide sensing range, reasonable sensitivity, and high stability, and also have economic advantages such as low cost, microvolume, and easy formation. In the relevant reports so far, flexible strain sensors have been widely used, including resistive, − capacitive, , piezoelectric, , and triboelectric , sensors.…”

Section: Introductionmentioning

confidence: 99%

Strain Sensors Made of MXene, CNTs, and TPU/PSF Asymmetric Structure Films with Large Tensile Recovery and Applied in Human Health Monitoring

Cui,

Miao,

et al. 2023

ACS Appl. Mater. Interfaces

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Section: Introductionmentioning

confidence: 99%

Strain Sensors Made of MXene, CNTs, and TPU/PSF Asymmetric Structure Films with Large Tensile Recovery and Applied in Human Health Monitoring

Cui,

Miao,

et al. 2023

ACS Appl. Mater. Interfaces

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“…Their distinctive properties offer new possibilities for innovation and growth. 12,13 Water-level sensors play a crucial role in various industrial applications such as bidets, boilers, and tanks, where precise liquid-level measurement is essential for optimal performance. These sensors play a vital role in detecting precise liquid levels, facilitating the timely refilling or utilization of liquid based on the desired level.…”

Section: ■ Introductionmentioning

confidence: 99%

“…This is attributable to their compact form factor, energy efficiency, and scalability, making TFTs an ideal choice for sensor applications requiring miniaturization, low power consumption, and adaptability. − Consequently, the significance of TFTs is steadily rising in the realm of emerging technologies, notably, flexible electronics, medical devices, and wearable technology. Their distinctive properties offer new possibilities for innovation and growth. , …”

Section: Introductionmentioning

confidence: 99%

Integrated Water-Level Sensor Using Thin-Film Transistor Technology

Moon,

Han,

Hwang

et al. 2023

ACS Omega

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A low-cost water-level sensor was developed utilizing a capacitive sensor design with only one thin-film transistor (TFT). The integration of the a-IGZO TFT process facilitated the complete integration of the water-level sensor on a substrate, including essential components, such as the transistor, capacitor, wires, and sensing electrode. This integration eliminates the need for a separate mounting process, resulting in a robust sensor assembly. To comprehensively assess the performance of the developed water-level sensor, rigorous evaluations were conducted using both MOSFET and TFT integration. In the case of the water-level sensor featuring a-IGZO TFT integration, a voltage output of 4.2 V was measured when the tank was empty, while a voltage output of 0.9 V was measured when the tank was full. Notably, the integrated sensor system demonstrated a higher output voltage compared with the MOSFET sensor, primarily due to the significantly reduced parasitic capacitance of the TFT. The use of a-IGZO TFT in the integrated sensor system contributes to enhanced sensitivity and accuracy. The lower parasitic capacitance inherent in TFT technology allows for improved voltage measurement precision, resulting in more reliable and precise water-level sensing capability. The development of this integrated water-level sensor holds immense potential for a wide range of applications that require a combination of cost-effectiveness, accurate monitoring, and flexibility in form factor. With its affordability, the sensor is accessible for various industries and applications.

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“…Wearable pressure sensors [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ] have attracted much attention in human surface motion detection, biomedical detection, and electronic skin. Traditionally, there are three categories of pressure sensors: piezoelectric, piezoresistive, and pressure-capacitance.…”

Section: Introductionmentioning

confidence: 99%

Underwater Highly Pressure-Sensitive Fabric Based on Electric-Induced Alignment of Graphene

Zhang

Liu

et al. 2023

Materials

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Wearable pressure sensors have received widespread attention owing to their potential applications in areas such as medical diagnosis and human–computer interaction. However, current sensors cannot adapt to extreme environments (e.g., wet and underwater) or show moderate sensitivity. Herein, a highly sensitive and superhydrophobic fabric sensor is reported based on graphene/PDMS coating. This wearable sensor exhibits great superhydrophobicity (water contact angle of 153.9°) due to the hydrophobic alkyl long chains and rough structure introduced by the Ar plasma. Owing to the network structure created by the electric-induced alignment of graphene sheets, an enhanced sensitivity (ΔI/I0 of 55) and fast response time (~100 ms) are observed. Due to its superhydrophobicity and sensitivity, this wearable sensor demonstrates efficient and stable monitoring of various underwater activities, including pressure, blowing, and tapping. Our approach provides an alternative idea for highly sensitive wearable sensors while broadening the practical application scope.

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Recent Advances in the Development of Flexible Sensors: Mechanisms, Materials, Performance Optimization, and Applications

Cited by 18 publications

References 339 publications

Strain Sensors Made of MXene, CNTs, and TPU/PSF Asymmetric Structure Films with Large Tensile Recovery and Applied in Human Health Monitoring

Strain Sensors Made of MXene, CNTs, and TPU/PSF Asymmetric Structure Films with Large Tensile Recovery and Applied in Human Health Monitoring

Integrated Water-Level Sensor Using Thin-Film Transistor Technology

Underwater Highly Pressure-Sensitive Fabric Based on Electric-Induced Alignment of Graphene

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