A wearable 3D pressure sensor based on electrostatic self-assembly MXene/chitosan sponge and insulating PVP spacer
© 2023 IOP Publishing Ltd..
It has been shown that flexible pressure sensors may be used in many different contexts, including human-machine interaction, intelligent robots, and health monitoring. In this work, we create a 3D sponge piezoresistive pressure sensor using MXene, chitosan, polyurethane sponge, and polyvinyl pyrrolidone (MXene/CS/PU sponge/PVP), with the well-conductive MXene nanosheet serving as the force sensitive material. In particular, the mechanical strength and endurance of the sensor are enhanced by electrostatic self-assembly between the negatively charged MXene nanosheets and the positively charged CS/PU composite sponge skeleton. The insulating PVP nanowires (PVP-NWs) also decreases the device's initial current, increasing the sensor's sensitivity. These characteristics allow the pressure sensor to simultaneously have a high sensitivity (50.27 kPa-1for pressure below 7 kPa and 13.3 kPa-1for pressure between 7 and 16 kPa), a quick response time (160 ms), a short recovery time (130 ms), and excellent cycling stability (5000 cycles). Moreover, the sensor exhibits a waterproof performance, where the force-sensitive layer still works normally after cleaning. In practice, the sensor could detect a variety of human actions as well as the distribution of spatial pressure due to the above superior device performance.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:34 |
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| Enthalten in: |
Nanotechnology - 34(2023), 45 vom: 22. Aug. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Liu, Zerui [VerfasserIn] |
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| Links: |
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| Themen: |
Electrostatic self-assembly |
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| Anmerkungen: |
Date Revised 22.08.2023 published: Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1088/1361-6528/acdde7 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM358130980 |
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| 520 | |a © 2023 IOP Publishing Ltd. | ||
| 520 | |a It has been shown that flexible pressure sensors may be used in many different contexts, including human-machine interaction, intelligent robots, and health monitoring. In this work, we create a 3D sponge piezoresistive pressure sensor using MXene, chitosan, polyurethane sponge, and polyvinyl pyrrolidone (MXene/CS/PU sponge/PVP), with the well-conductive MXene nanosheet serving as the force sensitive material. In particular, the mechanical strength and endurance of the sensor are enhanced by electrostatic self-assembly between the negatively charged MXene nanosheets and the positively charged CS/PU composite sponge skeleton. The insulating PVP nanowires (PVP-NWs) also decreases the device's initial current, increasing the sensor's sensitivity. These characteristics allow the pressure sensor to simultaneously have a high sensitivity (50.27 kPa-1for pressure below 7 kPa and 13.3 kPa-1for pressure between 7 and 16 kPa), a quick response time (160 ms), a short recovery time (130 ms), and excellent cycling stability (5000 cycles). Moreover, the sensor exhibits a waterproof performance, where the force-sensitive layer still works normally after cleaning. In practice, the sensor could detect a variety of human actions as well as the distribution of spatial pressure due to the above superior device performance | ||
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| 700 | 1 | |a Zhang, Yulin |e verfasserin |4 aut | |
| 700 | 1 | |a Song, Yuxiang |e verfasserin |4 aut | |
| 700 | 1 | |a Lu, Yong |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Ting |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Jicai |e verfasserin |4 aut | |
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