Ultra‐Wide Range, High Sensitivity Piezoresistive Sensor Based on Triple Periodic Minimum Surface Construction

Li, Zhong‐Ming; Feng, Dong; Li, Bin; Zhao, Wenbo; Xie, Delong; Mei, Yi

doi:10.1002/smll.202301378

Cited by 14 publications

(6 citation statements)

References 57 publications

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“…Simultaneously, this also indicates that the spacer layer within our sensor plays a crucial role in cyclic testing. Figure 3e illustrates the unique advantages of our prepared sensor compared with others, further confirming its excellent performance [1,[30][31][32][33][34][35].…”

Section: Performance Of Pressure Sensorsupporting

confidence: 63%

A Dual-Mode Pressure and Temperature Sensor

Chai,

Wang,

et al. 2024

Micromachines

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The emerging field of flexible tactile sensing systems, equipped with multi-physical tactile sensing capabilities, holds vast potential across diverse domains such as medical monitoring, robotics, and human–computer interaction. In response to the prevailing challenges associated with the limited integration and sensitivity of flexible tactile sensors, this paper introduces a versatile tactile sensing system capable of concurrently monitoring temperature and pressure. The temperature sensor employs carbon nanotube/graphene conductive paste as its sensitive material, while the pressure sensor integrates an ionic gel containing boron nitride as its sensitive layer. Through the application of cost-effective screen printing technology, we have successfully manufactured a flexible dual-mode sensor with exceptional performance, featuring high sensitivity (804.27 kPa−1), a broad response range (50 kPa), rapid response time (17 ms), and relaxation time (34 ms), alongside exceptional durability over 5000 cycles. Furthermore, the resistance temperature coefficient of the sensor within the temperature range of 12.5 °C to 93.7 °C is −0.17% °C−1. The designed flexible dual-mode tactile sensing system enables the real-time detection of pressure and temperature information, presenting an innovative approach to electronic skin with multi-physical tactile sensing capabilities.

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Section: Performance Of Pressure Sensorsupporting

confidence: 63%

A Dual-Mode Pressure and Temperature Sensor

Chai,

Wang,

et al. 2024

Micromachines

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“…This ordered microchannel architecture in the sensor leads to a decrease in the resistance of carbon nanofiber/MX-1 under compression, thereby affecting the sensitivity of the carbon nanofiber/MX-1 piezoresistive sensor. The sensitivity of carbon nanofiber/MX-1 remained stable after 5000 cycles of 50% strain compression, with a detection limit as low as 5 Pa and a sensitivity of up to 65/kPa for external pressures below 8 Pa. Li et al [89] introduced a flexible pressure sensor based on a triply periodic minimal surface (TPMS) and hybrid MXene/MWCNTs material (Figure 11b). By embedding the hybrid MXene/MWCNTs filler into porous TPU and integrating it with a TPMS structure, the resultant porous TPU/MXene/MWCNTs (TMM) composite sensor could achieve continuous variation in the contact area under external pressure, endowing the TMM pressure sensor with outstanding piezoresistive sensing characteristics.…”

Section: Carbon Nanomaterials-basedmentioning

confidence: 99%

Advancements in MXene Composite Materials for Wearable Sensors: A Review

Shao,

Chen,

Chen

et al. 2024

Sensors

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In recent years, advancements in the Internet of Things (IoT), manufacturing processes, and material synthesis technologies have positioned flexible sensors as critical components in wearable devices. These developments are propelling wearable technologies based on flexible sensors towards higher intelligence, convenience, superior performance, and biocompatibility. Recently, two-dimensional nanomaterials known as MXenes have garnered extensive attention due to their excellent mechanical properties, outstanding electrical conductivity, large specific surface area, and abundant surface functional groups. These notable attributes confer significant potential on MXenes for applications in strain sensing, pressure measurement, gas detection, etc. Furthermore, polymer substrates such as polydimethylsiloxane (PDMS), polyurethane (PU), and thermoplastic polyurethane (TPU) are extensively utilized as support materials for MXene and its composites due to their light weight, flexibility, and ease of processing, thereby enhancing the overall performance and wearability of the sensors. This paper reviews the latest advancements in MXene and its composites within the domains of strain sensors, pressure sensors, and gas sensors. We present numerous recent case studies of MXene composite material-based wearable sensors and discuss the optimization of materials and structures for MXene composite material-based wearable sensors, offering strategies and methods to enhance the development of MXene composite material-based wearable sensors. Finally, we summarize the current progress of MXene wearable sensors and project future trends and analyses.

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“…212,213 The challenge lies in effectively separating dual signals using a single integrated device when overlapping mixes presented. 214 Promising sensing technologies, such as piezoresistive 215,216 and thermal sensing, 217 which respond to resistance changes, currently offer solutions. Leveraging their commonality enables dual-channel signal perception and decoupling, overcoming the design limitations of multimodal sensors.…”

Section: Flexible Wearable Sensorsmentioning

confidence: 99%

Boosting flexible electronics with integration of two‐dimensional materials

Hou,

Zhang,

Liu

et al. 2024

InfoMat

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Flexible electronics has emerged as a continuously growing field of study. Two‐dimensional (2D) materials often act as conductors and electrodes in electronic devices, holding significant promise in the design of high‐performance, flexible electronics. Numerous studies have focused on harnessing the potential of these materials for the development of such devices. However, to date, the incorporation of 2D materials in flexible electronics has rarely been summarized or reviewed. Consequently, there is an urgent need to develop comprehensive reviews for rapid updates on this evolving landscape. This review covers progress in complex material architectures based on 2D materials, including interfaces, heterostructures, and 2D/polymer composites. Additionally, it explores flexible and wearable energy storage and conversion, display and touch technologies, and biomedical applications, together with integrated design solutions. Although the pursuit of high‐performance and high‐sensitivity instruments remains a primary objective, the integrated design of flexible electronics with 2D materials also warrants consideration. By combining multiple functionalities into a singular device, augmented by machine learning and algorithms, we can potentially surpass the performance of existing wearable technologies. Finally, we briefly discuss the future trajectory of this burgeoning field. This review discusses the recent advancements in flexible sensors made from 2D materials and their applications in integrated architecture and device design.

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Ultra‐Wide Range, High Sensitivity Piezoresistive Sensor Based on Triple Periodic Minimum Surface Construction

Cited by 14 publications

References 57 publications

A Dual-Mode Pressure and Temperature Sensor

A Dual-Mode Pressure and Temperature Sensor

Advancements in MXene Composite Materials for Wearable Sensors: A Review

Boosting flexible electronics with integration of two‐dimensional materials

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