Conjugated Polymer-Based Nanocomposites for Pressure Sensors
Flexible sensors are the essential foundations of pressure sensing, microcomputer sensing systems, and wearable devices. The flexible tactile sensor can sense stimuli by converting external forces into electrical signals. The electrical signals are transmitted to a computer processing system for ana...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/28/4/1627 |
| _version_ | 1797619108373594112 |
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| author | Qin-Teng Lai Qi-Jun Sun Zhenhua Tang Xin-Gui Tang Xin-Hua Zhao |
| author_facet | Qin-Teng Lai Qi-Jun Sun Zhenhua Tang Xin-Gui Tang Xin-Hua Zhao |
| author_sort | Qin-Teng Lai |
| collection | DOAJ |
| description | Flexible sensors are the essential foundations of pressure sensing, microcomputer sensing systems, and wearable devices. The flexible tactile sensor can sense stimuli by converting external forces into electrical signals. The electrical signals are transmitted to a computer processing system for analysis, realizing real-time health monitoring and human motion detection. According to the working mechanism, tactile sensors are mainly divided into four types—piezoresistive, capacitive, piezoelectric, and triboelectric tactile sensors. Conventional silicon-based tactile sensors are often inadequate for flexible electronics due to their limited mechanical flexibility. In comparison, polymeric nanocomposites are flexible and stretchable, which makes them excellent candidates for flexible and wearable tactile sensors. Among the promising polymers, conjugated polymers (CPs), due to their unique chemical structures and electronic properties that contribute to their high electrical and mechanical conductivity, show great potential for flexible sensors and wearable devices. In this paper, we first introduce the parameters of pressure sensors. Then, we describe the operating principles of resistive, capacitive, piezoelectric, and triboelectric sensors, and review the pressure sensors based on conjugated polymer nanocomposites that were reported in recent years. After that, we introduce the performance characteristics of flexible sensors, regarding their applications in healthcare, human motion monitoring, electronic skin, wearable devices, and artificial intelligence. In addition, we summarize and compare the performances of conjugated polymer nanocomposite-based pressure sensors that were reported in recent years. Finally, we summarize the challenges and future directions of conjugated polymer nanocomposite-based sensors. |
| first_indexed | 2024-03-11T08:22:27Z |
| format | Article |
| id | doaj.art-a3bcae76ab4b4d1596ec5af78030e66e |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-11T08:22:27Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-a3bcae76ab4b4d1596ec5af78030e66e2023-11-16T22:21:04ZengMDPI AGMolecules1420-30492023-02-01284162710.3390/molecules28041627Conjugated Polymer-Based Nanocomposites for Pressure SensorsQin-Teng Lai0Qi-Jun Sun1Zhenhua Tang2Xin-Gui Tang3Xin-Hua Zhao4School of Physics and Optoelectric Engineering, Guangdong University of Technology, Guangzhou 511400, ChinaSchool of Physics and Optoelectric Engineering, Guangdong University of Technology, Guangzhou 511400, ChinaSchool of Physics and Optoelectric Engineering, Guangdong University of Technology, Guangzhou 511400, ChinaSchool of Physics and Optoelectric Engineering, Guangdong University of Technology, Guangzhou 511400, ChinaDepartment of Chemistry, South University of Science and Technology of China, Shenzhen 518060, ChinaFlexible sensors are the essential foundations of pressure sensing, microcomputer sensing systems, and wearable devices. The flexible tactile sensor can sense stimuli by converting external forces into electrical signals. The electrical signals are transmitted to a computer processing system for analysis, realizing real-time health monitoring and human motion detection. According to the working mechanism, tactile sensors are mainly divided into four types—piezoresistive, capacitive, piezoelectric, and triboelectric tactile sensors. Conventional silicon-based tactile sensors are often inadequate for flexible electronics due to their limited mechanical flexibility. In comparison, polymeric nanocomposites are flexible and stretchable, which makes them excellent candidates for flexible and wearable tactile sensors. Among the promising polymers, conjugated polymers (CPs), due to their unique chemical structures and electronic properties that contribute to their high electrical and mechanical conductivity, show great potential for flexible sensors and wearable devices. In this paper, we first introduce the parameters of pressure sensors. Then, we describe the operating principles of resistive, capacitive, piezoelectric, and triboelectric sensors, and review the pressure sensors based on conjugated polymer nanocomposites that were reported in recent years. After that, we introduce the performance characteristics of flexible sensors, regarding their applications in healthcare, human motion monitoring, electronic skin, wearable devices, and artificial intelligence. In addition, we summarize and compare the performances of conjugated polymer nanocomposite-based pressure sensors that were reported in recent years. Finally, we summarize the challenges and future directions of conjugated polymer nanocomposite-based sensors.https://www.mdpi.com/1420-3049/28/4/1627conjugated polymersflexible pressure sensorshealthcareelectronic skinartificial intelligence |
| spellingShingle | Qin-Teng Lai Qi-Jun Sun Zhenhua Tang Xin-Gui Tang Xin-Hua Zhao Conjugated Polymer-Based Nanocomposites for Pressure Sensors Molecules conjugated polymers flexible pressure sensors healthcare electronic skin artificial intelligence |
| title | Conjugated Polymer-Based Nanocomposites for Pressure Sensors |
| title_full | Conjugated Polymer-Based Nanocomposites for Pressure Sensors |
| title_fullStr | Conjugated Polymer-Based Nanocomposites for Pressure Sensors |
| title_full_unstemmed | Conjugated Polymer-Based Nanocomposites for Pressure Sensors |
| title_short | Conjugated Polymer-Based Nanocomposites for Pressure Sensors |
| title_sort | conjugated polymer based nanocomposites for pressure sensors |
| topic | conjugated polymers flexible pressure sensors healthcare electronic skin artificial intelligence |
| url | https://www.mdpi.com/1420-3049/28/4/1627 |
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