Molybdenum-carbide-graphene composites for paper-based strain and acoustic pressure sensors

Long, Yu; He, Peisheng; Xu, Renxiao; Hayasaka, Tomoaki; Shao, Zhichun; Zhong, Junwen; Liu, Lin

doi:10.1016/j.carbon.2019.10.083

Cited by 49 publications

(24 citation statements)

References 30 publications

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“…It is worth noting that the AMP‐based sensor in this work delivers a more considerable GF value and a wider working range. Compared to the reported strain sensors based on different substrates (hydrogel, [ 28 ] paper, [ 29 ] PDMS, [ 30 ] or Ecoflex [ 31 ] ), our sensor with the PDMS/Ecoflex combined substrate simultaneously endows a large working range and a high sensitivity in one device.…”

Section: Resultsmentioning

confidence: 99%

Microstructure Engineering of Stretchable Resistive Strain Sensors with Discrimination Capabilities in Transverse and Longitudinal Directions

Shen

Zhang

Liang

et al. 2021

Macro Materials & Eng

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Featuring simple device structure, high sensitivity, and excellent reliability, stretchable resistive sensors have developed rapidly due to the high demand for flexible and wearable electronics. Nevertheless, it remains critically challenging to evaluate external stimuli using one simple device for diverse application scenarios. Here, a microstructure is engineered for a stretchable sensor by a facile replication/transferring and a prestretching/releasing process, enabling the device to have discrimination capabilities in the transverse direction (X‐axis) and longitudinal direction (Y‐axis). Consisting of silver nanowires (Ag NWs)/transition metal carbides (MXene)/poly(3,4‐ethylenedioxythiophene):poly (styrene‐sulfonate) (PEDOT:PSS) conducting layer and polydimethylsiloxane (PDMS)/Ecoflex elastomer, the microstructured sensor has a broad strain range of 120% along the X‐axis and a large gauge factor (GF) of 37.44 along the Y‐axis, and shows good stability during 1000 stretching/releasing cycles along two directions, indicating the excellent interfacial connection between the sensing layer and elastomer. As a result, taking advantages of distinct performance along two directions, the proposed stretchable sensor is demonstrated to monitor a variety of human movements and physical stimuli as a wearable and flexible device, revealing its promising potential in diverse application scenarios.

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Section: Resultsmentioning

confidence: 99%

Microstructure Engineering of Stretchable Resistive Strain Sensors with Discrimination Capabilities in Transverse and Longitudinal Directions

Shen

Zhang

Liang

et al. 2021

Macro Materials & Eng

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“…121 The SWNT/tissue sensor exhibited excellent pressure response performances and was successfully used to detect human vital physiological signals, such as radial artery pulse and muscle motion. In another work reported by Long et al , 110 piezo-resistivity pressure/strain sensors were fabricated by introducing molybdenum carbide–graphene (MCG) composites with porous and stacking micro-structures on paper substrates via a direct laser writing method. The working mechanism of the pressure/strain sensors was discussed in detail (Fig.…”

Section: Cellulose-based Papermentioning

confidence: 99%

The gorgeous transformation of paper: from cellulose paper to inorganic paper to 2D paper materials with multifunctional properties

Dai

Guo

2022

J. Mater. Chem. A

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“…Compared with the aforementioned contact sensing, non-contact acoustic detection is more challenging. A paper-based sensor with porous microstructure and stacked microstructure prepared by direct laser writing strategy was developed to act as an acoustic strain sensor [ 20 ]. As a strain sensor, this device could detect the amplitude and frequency of the applied strain and detect the direction of tensile and compressive deformations.…”

Section: Paper-based Sensors For Physical Factors Sensingmentioning

confidence: 99%

“…pressure --2020 [20] current Low pressure reduces the gap between the PVP layer containing conductive carbon nanotubes and the interdigital electrodes, resulting in a resistance decrease. While high pressure reduces the gap between the conductive carbon nanotubes inside the PVP layer to reduce the sensor's resistance, leading to an increased current.…”

Section: Introductionmentioning

confidence: 99%

Hospitals and Laboratories on Paper-Based Sensors: A Mini Review

Zhang

Xia

Feng

et al. 2021

Sensors

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With characters of low cost, portability, easy disposal, and high accuracy, as well as bulky reduced laboratory equipment, paper-based sensors are getting increasing attention for reliable indoor/outdoor onsite detection with nonexpert operation. They have become powerful analysis tools in trace detection with ultra-low detection limits and extremely high accuracy, resulting in their great popularity in medical detection, environmental inspection, and other applications. Herein, we summarize and generalize the recently reported paper-based sensors based on their application for mechanics, biomolecules, food safety, and environmental inspection. Based on the biological, physical, and chemical analytes-sensitive electrical or optical signals, extensive detections of a large number of factors such as humidity, pressure, nucleic acid, protein, sugar, biomarkers, metal ions, and organic/inorganic chemical substances have been reported via paper-based sensors. Challenges faced by the current paper-based sensors from the fundamental problems and practical applications are subsequently analyzed; thus, the future directions of paper-based sensors are specified for their rapid handheld testing.

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Molybdenum-carbide-graphene composites for paper-based strain and acoustic pressure sensors

Cited by 49 publications

References 30 publications

Microstructure Engineering of Stretchable Resistive Strain Sensors with Discrimination Capabilities in Transverse and Longitudinal Directions

Microstructure Engineering of Stretchable Resistive Strain Sensors with Discrimination Capabilities in Transverse and Longitudinal Directions

The gorgeous transformation of paper: from cellulose paper to inorganic paper to 2D paper materials with multifunctional properties

Hospitals and Laboratories on Paper-Based Sensors: A Mini Review

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