Smart Driving Hardware Augmentation by Flexible Piezoresistive Sensor Matrices with Grafted‐on Anticreep Composites
Abstract Signal drift and hysteresis of flexible piezoresistive sensors pose significant challenges against the widespread applications in emerging fields such as electronic skin, wearable equipment for metaverse and human‐AI (artificial intelligence) interfaces. To address the creep and relaxation...
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| Format: | Article |
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Wiley
2025-01-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202408313 |
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| author | Kaifeng Chen Hua Yang Ang Wang Linsen Tang Xin Zha Ndeutala Selma Iita Hong Zhang Zhuoxuan Li Xinyu Wang Wei Yang Shaoxing Qu Zongrong Wang |
| author_facet | Kaifeng Chen Hua Yang Ang Wang Linsen Tang Xin Zha Ndeutala Selma Iita Hong Zhang Zhuoxuan Li Xinyu Wang Wei Yang Shaoxing Qu Zongrong Wang |
| author_sort | Kaifeng Chen |
| collection | DOAJ |
| description | Abstract Signal drift and hysteresis of flexible piezoresistive sensors pose significant challenges against the widespread applications in emerging fields such as electronic skin, wearable equipment for metaverse and human‐AI (artificial intelligence) interfaces. To address the creep and relaxation issues associated with pressure‐sensitive materials, a highly stable piezoresistive composite is proposed, using polyamide‐imide (PAI) fibers as the matrix and in situ grafted‐polymerized polyaniline (PANI) as the semi‐conducting layer. The PAI with large rigid fluorenylidene groups exhibits a high glass transition temperature of 372 °C (PAI 5‐5), which results in an extremely long relaxation time at room temperature and consequently offers outstanding anti‐creep/relaxation performances. The enhancement of PAI‐PANI interfacial bonding through in situ grafting improves the sensor reliably. The sensor presents high linear sensitivity of 35.3 kPa−1 over a pressure range of 0.2–20 kPa, outstanding repeatability, and excellent dynamic stability with only a 3.8% signal deviation through ≈10 000 cycles. Real‐time visualization of pressure distribution is realized by sensor matrices, which demonstrate the capability of tactile gesture recognition on both flat and curved surfaces. The recognition of sitting postures is achieved by two 12 × 12 matrices facilitated by machine learning, which prompts the potential for the augmentation of smart driving. |
| format | Article |
| id | doaj-art-9de630bf602044bd997c4930ed266dd3 |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-9de630bf602044bd997c4930ed266dd32025-01-20T13:04:18ZengWileyAdvanced Science2198-38442025-01-01123n/an/a10.1002/advs.202408313Smart Driving Hardware Augmentation by Flexible Piezoresistive Sensor Matrices with Grafted‐on Anticreep CompositesKaifeng Chen0Hua Yang1Ang Wang2Linsen Tang3Xin Zha4Ndeutala Selma Iita5Hong Zhang6Zhuoxuan Li7Xinyu Wang8Wei Yang9Shaoxing Qu10Zongrong Wang11Huanjiang Laboratory School of Aeronautics and Astronautics Zhejiang University Hangzhou 310027 ChinaHuanjiang Laboratory School of Aeronautics and Astronautics Zhejiang University Hangzhou 310027 ChinaInstitute of Thermal Science and Technology Shandong University Jinan 250061 ChinaHuanjiang Laboratory School of Aeronautics and Astronautics Zhejiang University Hangzhou 310027 ChinaHuanjiang Laboratory School of Aeronautics and Astronautics Zhejiang University Hangzhou 310027 ChinaState Key Laboratory of Silicon and Advanced Semiconductor Materials School of Materials Science and Engineering Zhejiang University Hangzhou 310027 ChinaHuanjiang Laboratory School of Aeronautics and Astronautics Zhejiang University Hangzhou 310027 ChinaHuanjiang Laboratory School of Aeronautics and Astronautics Zhejiang University Hangzhou 310027 ChinaInstitute of Thermal Science and Technology Shandong University Jinan 250061 ChinaCenter for X‐Mechanics Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province School of Aeronautics and Astronautics Zhejiang University Hangzhou 310027 ChinaHuanjiang Laboratory School of Aeronautics and Astronautics Zhejiang University Hangzhou 310027 ChinaHuanjiang Laboratory School of Aeronautics and Astronautics Zhejiang University Hangzhou 310027 ChinaAbstract Signal drift and hysteresis of flexible piezoresistive sensors pose significant challenges against the widespread applications in emerging fields such as electronic skin, wearable equipment for metaverse and human‐AI (artificial intelligence) interfaces. To address the creep and relaxation issues associated with pressure‐sensitive materials, a highly stable piezoresistive composite is proposed, using polyamide‐imide (PAI) fibers as the matrix and in situ grafted‐polymerized polyaniline (PANI) as the semi‐conducting layer. The PAI with large rigid fluorenylidene groups exhibits a high glass transition temperature of 372 °C (PAI 5‐5), which results in an extremely long relaxation time at room temperature and consequently offers outstanding anti‐creep/relaxation performances. The enhancement of PAI‐PANI interfacial bonding through in situ grafting improves the sensor reliably. The sensor presents high linear sensitivity of 35.3 kPa−1 over a pressure range of 0.2–20 kPa, outstanding repeatability, and excellent dynamic stability with only a 3.8% signal deviation through ≈10 000 cycles. Real‐time visualization of pressure distribution is realized by sensor matrices, which demonstrate the capability of tactile gesture recognition on both flat and curved surfaces. The recognition of sitting postures is achieved by two 12 × 12 matrices facilitated by machine learning, which prompts the potential for the augmentation of smart driving.https://doi.org/10.1002/advs.202408313grafted‐on compositespiezoresistive sensorspressure sensor matricespressure visualizationssmart‐driving augmentations |
| spellingShingle | Kaifeng Chen Hua Yang Ang Wang Linsen Tang Xin Zha Ndeutala Selma Iita Hong Zhang Zhuoxuan Li Xinyu Wang Wei Yang Shaoxing Qu Zongrong Wang Smart Driving Hardware Augmentation by Flexible Piezoresistive Sensor Matrices with Grafted‐on Anticreep Composites Advanced Science grafted‐on composites piezoresistive sensors pressure sensor matrices pressure visualizations smart‐driving augmentations |
| title | Smart Driving Hardware Augmentation by Flexible Piezoresistive Sensor Matrices with Grafted‐on Anticreep Composites |
| title_full | Smart Driving Hardware Augmentation by Flexible Piezoresistive Sensor Matrices with Grafted‐on Anticreep Composites |
| title_fullStr | Smart Driving Hardware Augmentation by Flexible Piezoresistive Sensor Matrices with Grafted‐on Anticreep Composites |
| title_full_unstemmed | Smart Driving Hardware Augmentation by Flexible Piezoresistive Sensor Matrices with Grafted‐on Anticreep Composites |
| title_short | Smart Driving Hardware Augmentation by Flexible Piezoresistive Sensor Matrices with Grafted‐on Anticreep Composites |
| title_sort | smart driving hardware augmentation by flexible piezoresistive sensor matrices with grafted on anticreep composites |
| topic | grafted‐on composites piezoresistive sensors pressure sensor matrices pressure visualizations smart‐driving augmentations |
| url | https://doi.org/10.1002/advs.202408313 |
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