Smart fabric strain sensor comprising reduced graphene oxide with structure-based negative piezoresistivity

Hong, Xinghua; Yu, Rufang; Hou, Min; Jin, Zhijun; Dong, Yubing; Zhu, Chunhua; Wan, Junmin; Li, Yongqiang

doi:10.1007/s10853-021-06365-4

Cited by 19 publications

(9 citation statements)

References 51 publications

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“…On the one hand, when the strain be applied, the conductive materials of the conductive network are misaligned or separated, and the contact points between them decrease sharply, resulting in the increment of relative resistance in Figure 5(d), which is corresponding to negative piezo-resistance behavior, as well as prior works reported. 4,55 On the other hand, the applied strain usually derived from the stress, and the contact points can increase sharply under stress, resulting in the reduction of relative resistance in Figure 5(b, c, f, g), which is corresponding to positive piezo-resistance behavior, as well as prior works reported. 54…”

Section: Resultssupporting

confidence: 78%

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Manganese waste liquid derived MnFe₂O₄/RGO fabric for microwave blocking, high stable strain and temperature sensing

Hong

Sun

Tao

et al. 2022

Journal of Industrial Textiles

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Herein, a MnFe2O4/RGO knitted fabric derived from manganese waste was constructed by a simple in-situ assembled coating method, involving the incorporation of Graphene Oxide (GO) and manganese ferrite nanoparticles on polyester fabric, followed reducing by hydrazine hydrate. The reuse of manganese waste from the preparation of GO can reduce chemical waste emissions and endow the absorption performance. The coated particles possess certain magnetism can be attracted and securely collected in seconds, which is convenient for recycling. This fabric gives well microwave absorption with the maximum reflection loss (RL) of −58.6 dB at 9.1 GHz by a thickness of 1.9 mm. In addition, this fabric presents high stable strain sensing under 1000 stretching and bending cycles. Meanwhile, the resistance-deformation-velocity relationship is provided based on the structure, for the analysis of electromechanical behaviors. Moreover, the fabric has the capability for temperature sensing (TCR=−0.738%/°C), and fire alarm. As such, this fabric can be promising alternatives for a wide application on motion and temperature sensing, microwave blocking.

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Section: Resultssupporting

confidence: 78%

“…converting strain into electrical signals based on the piezoresistivity. 4 Functional textiles capable of electromagnetic shielding, 5 radiation protection, 6 far infrared 7 and sensing 8 are widely needed in various fields.…”

Section: Introductionmentioning

confidence: 99%

Manganese waste liquid derived MnFe₂O₄/RGO fabric for microwave blocking, high stable strain and temperature sensing

Hong

Sun

Tao

et al. 2022

Journal of Industrial Textiles

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“…(a) Complete tensile resistance response, which can be divided into three stages, shows a wide-ranging sensitivity. (b) Comparison of the performance of tension sensors of different mechanisms. − ,− The color blocks represent the response range of the sensor based on graphene. (c and d) Performance of the sensor under 3000 cycles of tensile loading in the X -direction and Y -direction, respectively.…”

Section: Resultsmentioning

confidence: 99%

Understanding the Origin of Tensile Response in a Graphene Textile Strain Sensor with Negative Differential Resistance

et al. 2022

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The flexible strain sensors based on the textile substrate have natural flexibility, high sensitivity, and wide-range tensile response. However, the textile’s complex and anisotropic substructure leads to a negative differential resistance (NDR) response, lacking a deeper understanding of the mechanism. Therefore, we examined a graphene textile strain sensor with a conspicuous NDR tensile response, providing a requisite research platform for mechanism investigation. The pioneering measurement of single fiber bundles confirmed the existence of the NDR effect on the subgeometry scale. Based on the in situ characterization of tensile morphology and measurement, we conducted quantitative behavior analyses to reveal the origin of tensile electrical responses in the full range comprehensively. The results showed that the dominant factor in generating the NDR effect is the relative displacement of fibers within the textile bundles. Based on the neural spiking-like tensile response, we further demonstrated the application potential of the textile strain sensor in threshold detection and near-sensor signal processing. The proposed NDR behavior model would provide a reference for the design and application of wearable intelligent textiles.

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“…In recent years, wearable electronic sensors have shown great application potential in personal medical health monitoring, human motion state detection, human–computer interaction, and information transmission, and they have been integrated gradually into modern lifestyles. − To satisfy the urgent needs of emerging technologies and biological integration, wearable electronic devices must have certain mechanical adaptability, portability, and light weight . However, most of the traditional conductive sensing devices are based on metal wires and intrinsically conductive polymers of instinctive stiffness and poor flexibility, which greatly limit their application in the direction of flexible wearable electronic devices. − Textile materials, which possess inherent properties such as softness and durability, provide an ideal choice as the base material. Particularly, as an important part of textiles, fibers can be seamlessly connected to the user’s clothing or accessories, so that fiber-based sensors can complete the collection of relevant signals without affecting the user’s normal activities; thus they have been warmly welcomed in the wearable electronic device field …”

Section: Introductionmentioning

confidence: 99%

Flexible Pressure Sensor Decorated with MXene and Reduced Graphene Oxide Composites for Motion Detection, Information Transmission, and Pressure Sensing Performance

Yang

Liu

Yin

et al. 2022

ACS Appl. Mater. Interfaces

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Although fiber-based flexible piezoresistive pressure sensors have received extensive attention because of their simple fabrication and easy integration, the common practice of using a single material as the sensing layer often leads to unsatisfactory sensitivity and a limited sensing range. Herein, we exploit the combination of reduced graphene oxide (rGO) and two-dimensional transition-metal carbides and nitrides (MXene), use a polyester filament (PET) as the fiber matrix, and fabricate an MX/ rGO PET-based flexible pressure sensor using the "dipping-drying" method. A systematic study is conducted concerning the effect of the dip-coating sequence and material combination on the sensor's resistance and sensitivity, which reveals that MX/rGO PET has the smallest resistance and the highest sensitivity (1.24 kPa −1 ). A series of tests are conducted to evaluate the pressure sensing characteristics of the MX/rGO PET-based pressure sensor, confirming its good linearity, fast response speed, low detection limit, and stable performance. In addition, the sensor has been successfully used to monitor various human joint activities and physiological signals such as breathing, demonstrating great application potential in the field of personal health care. To further enhance the practical utility, an APP has been designed to analyze and display the collected signals, and the constructed sensor network also provides an ingenious method for information encryption and transmission via pressure sensing. In all, the MX/rGO PET-based pressure sensor proposed in this work is expected to provide a competitive scheme for wearable flexible electronic devices in information transmission and human−computer interaction in the future.

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Smart fabric strain sensor comprising reduced graphene oxide with structure-based negative piezoresistivity

Cited by 19 publications

References 51 publications

Manganese waste liquid derived MnFe₂O₄/RGO fabric for microwave blocking, high stable strain and temperature sensing

Manganese waste liquid derived MnFe₂O₄/RGO fabric for microwave blocking, high stable strain and temperature sensing

Understanding the Origin of Tensile Response in a Graphene Textile Strain Sensor with Negative Differential Resistance

Flexible Pressure Sensor Decorated with MXene and Reduced Graphene Oxide Composites for Motion Detection, Information Transmission, and Pressure Sensing Performance

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Smart fabric strain sensor comprising reduced graphene oxide with structure-based negative piezoresistivity

Cited by 19 publications

References 51 publications

Manganese waste liquid derived MnFe2O4/RGO fabric for microwave blocking, high stable strain and temperature sensing

Manganese waste liquid derived MnFe2O4/RGO fabric for microwave blocking, high stable strain and temperature sensing

Understanding the Origin of Tensile Response in a Graphene Textile Strain Sensor with Negative Differential Resistance

Flexible Pressure Sensor Decorated with MXene and Reduced Graphene Oxide Composites for Motion Detection, Information Transmission, and Pressure Sensing Performance

Contact Info

Product

Resources

About

Manganese waste liquid derived MnFe₂O₄/RGO fabric for microwave blocking, high stable strain and temperature sensing

Manganese waste liquid derived MnFe₂O₄/RGO fabric for microwave blocking, high stable strain and temperature sensing