Printable and Stretchable Temperature-Strain Dual-Sensing Nanocomposite with High Sensitivity and Perfect Stimulus Discriminability

Li, Fengchao; Liu, Yang; Shi, Xiaohui; Liu, Hongpeng; Wang, Conghui; Zhang, Quan; Ma, Rujun; Liang, Jiajie

doi:10.1021/acs.nanolett.0c02519

Cited by 106 publications

(94 citation statements)

References 50 publications

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“…To the best of our knowledge, the strain sensitivity of the BP@LEG strain sensor is outstanding compared to the state-of-the-art strain sensors. [4,6,7,10,12,16,42] ( Table 2 and Figure S12b, Supporting Information). The performance of the BP@LEG hybrid sensor was subsequently examined for values of strain ranging from 2 to 20%, as indicated in Figure 5d.…”

Section: (9 Of 14)mentioning

confidence: 99%

Black Phosphorus@Laser‐Engraved Graphene Heterostructure‐Based Temperature–Strain Hybridized Sensor for Electronic‐Skin Applications

Chhetry

Sharma

Barman

et al. 2020

Adv Funct Materials

113

119

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Smart electronic skin (e‐skin) requires the easy incorporation of multifunctional sensors capable of mimicking skin‐like perception in response to external stimuli. However, efficient and reliable measurement of multiple parameters in a single functional device is limited by the sensor layout and choice of functional materials. The outstanding electrical properties of black phosphorus and laser‐engraved graphene (BP@LEG) demonstrates a new paradigm for a highly sensitive dual‐modal temperature and strain sensor platform to modulate e‐skin sensing functionality. Moreover, the unique hybridized sensor design enables efficient and accurate determination of each parameter without interfering with each other. The cationic polymer passivated BP@LEG composite material on polystyrene‐block‐poly(ethylene‐ran‐butylene)‐block‐polystyrene (SEBS) substrate outperforms as a positive temperature coefficient material, exhibiting a high thermal index of 8106 K (25–50 °C) with high strain sensitivity (i.e., gauge factor, GF) of up to 2765 (>19.2%), ultralow strain resolution of 0.023%, and longer durability (>18 400 cycles), satisfying the e‐skin requirements. Looking forward, this technique provides unique opportunities for broader applications, such as e‐skin, robotic appendages, and health monitoring technologies.

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Section: (9 Of 14)mentioning

confidence: 99%

Black Phosphorus@Laser‐Engraved Graphene Heterostructure‐Based Temperature–Strain Hybridized Sensor for Electronic‐Skin Applications

Chhetry

Sharma

Barman

et al. 2020

Adv Funct Materials

113

119

View full text Add to dashboard Cite

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“…With the increasing demand for artificial intelligence and the internet of things, the potential of flexible and wearable sensors in human-machine interaction, soft robots, and health monitoring applications have received great attention [1][2][3][4][5] . According to the sensing mechanism, the flexible sensors are divided into four types: resistive-type [6][7][8][9][10] , capacitive-type [11][12][13] , piezoelectrictype [14][15][16] , and triboelectric-type 5,17,18 . Among them, capacitive sensors have been intensively investigated owing to their characteristics of simple fabrication, good anti-interference, and excellent long-term stability [11][12][13]19 .…”

Section: Introductionmentioning

confidence: 99%

Microstructured capacitive sensor with broad detection range and long-term stability for human activity detection

Liu

Shen

et al. 2021

npj Flex Electron

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In recent years, flexible stress sensors capable of monitoring diverse body movements and physiological signals have been attracting great attention in the fields of healthcare systems, human–machine interfaces, and wearable electronics. Inspired by the structure of natural eggshell inner membrane (ESIM), we developed a pressure sensor based on MXene (Ti3C2Tx)/Ag NWs (silver nanowires) composite electrodes and the micro-structured dielectric layer to meet the application requirements of wide detection range and long-term stability for the sensors. In the light of the nanoscale-microarray of the dielectric layer and the rough surface of electrode materials, this pressure sensor is expected to allow great and persistent deformation during the loading process. As a result, the device is characterized by an improved sensitivity, fast response (in the millisecond range), wide detection range (0–600 kPa), and long-term stability. The outstanding performance of the proposed sensor makes it possible to detect various human activities, such as speaking, air blowing, clenching, walking, finger/knee/elbow bending, and striking, demonstrating its good application prospects in wearable and flexible electronic devices.

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Section: Wearable Self‐powered System Based On Thermoelectric Modulesmentioning

confidence: 99%

“…II) The decoupled sensing mechanism of the sensor when coupled strain and temperature stimuli are applied simultaneously. Reproduced with permission [47]. Copyright 2020, American Chemical Society.…”

mentioning

confidence: 99%

Wearable Thermoelectric Materials and Devices for Self‐Powered Electronic Systems

et al. 2021

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Because of their readiness and high power bandwidth, batteries are the preeminent source of power supply for portable electronics, but are subject to periodic recharging and replacement. Hence, a key challenge is to design suitable and sustainable power sources for portable electronic devices. Harvesting energy from the human body is suitable for providing consistent and uninterrupted energy for wearable electronic devices. The daily activities of a 68-kg adult can generate over 100 W of power, through breathing, heating, blood transport, and walking. [3] Thus, converting 1% of the power generated by the human body may be enough to support the work of most portable electronics. Various energy-harvesting technologies, such as, triboelectric nanogenerators (TENGs), [4][5][6] piezoelectric nanogenerators, [7] and thermoelectric generators (TEGs), [8] have been developed to convert human energy (from human motion and body heat) into electricity. In line with recent developments in wearable electronics and e-skins, the use of a self-powered direct-current (DC) electric power supplier is inevitable for activating human body-adjustable electronic systems. [9] Among the various energy-autonomous devices, [10] only TEGs can permanently produce DC electric power without complex power managing components, and they are maintenance free. Moreover, solar energy and vibration-based energy harvesters areThe emergence of artificial intelligence and the Internet of Things has led to a growing demand for wearable and maintenance-free power sources. The continual push toward lower operating voltages and power consumption in modern integrated circuits has made the development of devices powered by body heat finally feasible. In this context, thermoelectric (TE) materials have emerged as promising candidates for the effective conversion of body heat into electricity to power wearable devices without being limited by environmental conditions. Driven by rapid advances in processing technology and the performance of TE materials over the past two decades, wearable thermoelectric generators (WTEGs) have gradually become more flexible and stretchable so that they can be used on complex and dynamic surfaces. In this review, the functional materials, processing techniques, and strategies for the device design of different types of WTEGs are comprehensively covered. Wearable self-powered systems based on WTEGs are summarized, including multi-function TE modules, hybrid energy harvesting, and all-in-one energy devices. Challenges in organic TE materials, interfacial engineering, and assessments of device performance are discussed, and suggestions for future developments in the area are provided. This review will promote the rapid implementation of wearable TE materials and devices in self-powered electronic systems.The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adma.202102990.

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Printable and Stretchable Temperature-Strain Dual-Sensing Nanocomposite with High Sensitivity and Perfect Stimulus Discriminability

Cited by 106 publications

References 50 publications

Black Phosphorus@Laser‐Engraved Graphene Heterostructure‐Based Temperature–Strain Hybridized Sensor for Electronic‐Skin Applications

Black Phosphorus@Laser‐Engraved Graphene Heterostructure‐Based Temperature–Strain Hybridized Sensor for Electronic‐Skin Applications

Microstructured capacitive sensor with broad detection range and long-term stability for human activity detection

Wearable Thermoelectric Materials and Devices for Self‐Powered Electronic Systems

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