A Highly Sensitive Piezoresistive Pressure Sensor Based on Graphene Oxide/Polypyrrole@Polyurethane Sponge
In this work, polyurethane sponge is employed as the structural substrate of the sensor. Graphene oxide (GO) and polypyrrole (PPy) are alternately coated on the sponge fiber skeleton by charge layer-by-layer assembly (LBL) to form a multilayer composite conductive layer to prepare the piezoresistive...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-02-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/20/4/1219 |
| _version_ | 1817993547807195136 |
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| author | Bing Lv Xingtong Chen Chunguo Liu |
| author_facet | Bing Lv Xingtong Chen Chunguo Liu |
| author_sort | Bing Lv |
| collection | DOAJ |
| description | In this work, polyurethane sponge is employed as the structural substrate of the sensor. Graphene oxide (GO) and polypyrrole (PPy) are alternately coated on the sponge fiber skeleton by charge layer-by-layer assembly (LBL) to form a multilayer composite conductive layer to prepare the piezoresistive sensors. The 2D GO sheet is helpful for the formation of the GO layers, and separating the PPy layer. The prepared GO/PPy@PU (polyurethane) conductive sponges still had high compressibility. The unique fragmental microstructure and synergistic effect made the sensor reach a high sensitivity of 0.79 kPa<sup>−1</sup>. The sensor could detect as low as 75 Pa, exhibited response time less than 70 ms and reproducibility over 10,000 cycles, and could be used for different types of motion detection. This work opens up new opportunities for high-performance piezoresistive sensors and other electronic devices for GO/PPy composites. |
| first_indexed | 2024-04-14T01:40:18Z |
| format | Article |
| id | doaj.art-48f422d8c0d54429994ace9db40a923b |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T01:40:18Z |
| publishDate | 2020-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-48f422d8c0d54429994ace9db40a923b2022-12-22T02:19:46ZengMDPI AGSensors1424-82202020-02-01204121910.3390/s20041219s20041219A Highly Sensitive Piezoresistive Pressure Sensor Based on Graphene Oxide/Polypyrrole@Polyurethane SpongeBing Lv0Xingtong Chen1Chunguo Liu2Roll-Forging Research Institute, College of Materials Science and Engineering, Jilin University, Changchun 130025, ChinaRoll-Forging Research Institute, College of Materials Science and Engineering, Jilin University, Changchun 130025, ChinaRoll-Forging Research Institute, College of Materials Science and Engineering, Jilin University, Changchun 130025, ChinaIn this work, polyurethane sponge is employed as the structural substrate of the sensor. Graphene oxide (GO) and polypyrrole (PPy) are alternately coated on the sponge fiber skeleton by charge layer-by-layer assembly (LBL) to form a multilayer composite conductive layer to prepare the piezoresistive sensors. The 2D GO sheet is helpful for the formation of the GO layers, and separating the PPy layer. The prepared GO/PPy@PU (polyurethane) conductive sponges still had high compressibility. The unique fragmental microstructure and synergistic effect made the sensor reach a high sensitivity of 0.79 kPa<sup>−1</sup>. The sensor could detect as low as 75 Pa, exhibited response time less than 70 ms and reproducibility over 10,000 cycles, and could be used for different types of motion detection. This work opens up new opportunities for high-performance piezoresistive sensors and other electronic devices for GO/PPy composites.https://www.mdpi.com/1424-8220/20/4/1219pressure-sensitivelayer-by-layer assemblymultilayer structurespiezoresistive sensors |
| spellingShingle | Bing Lv Xingtong Chen Chunguo Liu A Highly Sensitive Piezoresistive Pressure Sensor Based on Graphene Oxide/Polypyrrole@Polyurethane Sponge Sensors pressure-sensitive layer-by-layer assembly multilayer structures piezoresistive sensors |
| title | A Highly Sensitive Piezoresistive Pressure Sensor Based on Graphene Oxide/Polypyrrole@Polyurethane Sponge |
| title_full | A Highly Sensitive Piezoresistive Pressure Sensor Based on Graphene Oxide/Polypyrrole@Polyurethane Sponge |
| title_fullStr | A Highly Sensitive Piezoresistive Pressure Sensor Based on Graphene Oxide/Polypyrrole@Polyurethane Sponge |
| title_full_unstemmed | A Highly Sensitive Piezoresistive Pressure Sensor Based on Graphene Oxide/Polypyrrole@Polyurethane Sponge |
| title_short | A Highly Sensitive Piezoresistive Pressure Sensor Based on Graphene Oxide/Polypyrrole@Polyurethane Sponge |
| title_sort | highly sensitive piezoresistive pressure sensor based on graphene oxide polypyrrole polyurethane sponge |
| topic | pressure-sensitive layer-by-layer assembly multilayer structures piezoresistive sensors |
| url | https://www.mdpi.com/1424-8220/20/4/1219 |
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