A Fast Response−Recovery 3D Graphene Foam Humidity Sensor for User Interaction
Humidity sensors allow electronic devices to convert the water content in the environment into electronical signals by utilizing material properties and transduction techniques. Three-dimensional graphene foam (3DGF) can be exploited in humidity sensors due to its convenient features including low-m...
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MDPI AG
2018-12-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/18/12/4337 |
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| author | Yu Yu Yating Zhang Lufan Jin Zhiliang Chen Yifan Li Qingyan Li Mingxuan Cao Yongli Che Junbo Yang Jianquan Yao |
| author_facet | Yu Yu Yating Zhang Lufan Jin Zhiliang Chen Yifan Li Qingyan Li Mingxuan Cao Yongli Che Junbo Yang Jianquan Yao |
| author_sort | Yu Yu |
| collection | DOAJ |
| description | Humidity sensors allow electronic devices to convert the water content in the environment into electronical signals by utilizing material properties and transduction techniques. Three-dimensional graphene foam (3DGF) can be exploited in humidity sensors due to its convenient features including low-mass density, large specific surface area, and excellent electrical. In this paper, 3DGF with super permeability to water enables humidity sensors to exhibit a broad relative humidities (RH) range, from 0% to 85.9%, with a fast response speed (response time: ~89 ms, recovery time: ~189 ms). To interpret the physical mechanism behind this, we constructed a 3DGF model decorated with water to calculate the energy structure and we carried out the CASTEP as implemented in Materials Studio 8.0. This can be ascribed to the donor effect, namely, the electronic donation of chemically adsorbed water molecules to the 3DGF surface. Furthermore, this device can be used for user interaction (UI) with unprecedented performance. These high performances support 3DGF as a promising material for humidity sensitive material. |
| first_indexed | 2024-04-14T02:14:16Z |
| format | Article |
| id | doaj.art-2f402ddd510e4732842e7f1fbd19f531 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T02:14:16Z |
| publishDate | 2018-12-01 |
| publisher | MDPI AG |
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| series | Sensors |
| spelling | doaj.art-2f402ddd510e4732842e7f1fbd19f5312022-12-22T02:18:19ZengMDPI AGSensors1424-82202018-12-011812433710.3390/s18124337s18124337A Fast Response−Recovery 3D Graphene Foam Humidity Sensor for User InteractionYu Yu0Yating Zhang1Lufan Jin2Zhiliang Chen3Yifan Li4Qingyan Li5Mingxuan Cao6Yongli Che7Junbo Yang8Jianquan Yao9Department of Electrical and Electronic Engineering, South University of Science and Technology of China, Shenzhen 518055, ChinaDepartment of Electrical and Electronic Engineering, South University of Science and Technology of China, Shenzhen 518055, ChinaDepartment of Electrical and Electronic Engineering, South University of Science and Technology of China, Shenzhen 518055, ChinaDepartment of Electrical and Electronic Engineering, South University of Science and Technology of China, Shenzhen 518055, ChinaDepartment of Electrical and Electronic Engineering, South University of Science and Technology of China, Shenzhen 518055, ChinaDepartment of Electrical and Electronic Engineering, South University of Science and Technology of China, Shenzhen 518055, ChinaDepartment of Electrical and Electronic Engineering, South University of Science and Technology of China, Shenzhen 518055, ChinaDepartment of Electrical and Electronic Engineering, South University of Science and Technology of China, Shenzhen 518055, ChinaCenter of Material Science, National University of Defense Technology, Changsha 410073, ChinaDepartment of Electrical and Electronic Engineering, South University of Science and Technology of China, Shenzhen 518055, ChinaHumidity sensors allow electronic devices to convert the water content in the environment into electronical signals by utilizing material properties and transduction techniques. Three-dimensional graphene foam (3DGF) can be exploited in humidity sensors due to its convenient features including low-mass density, large specific surface area, and excellent electrical. In this paper, 3DGF with super permeability to water enables humidity sensors to exhibit a broad relative humidities (RH) range, from 0% to 85.9%, with a fast response speed (response time: ~89 ms, recovery time: ~189 ms). To interpret the physical mechanism behind this, we constructed a 3DGF model decorated with water to calculate the energy structure and we carried out the CASTEP as implemented in Materials Studio 8.0. This can be ascribed to the donor effect, namely, the electronic donation of chemically adsorbed water molecules to the 3DGF surface. Furthermore, this device can be used for user interaction (UI) with unprecedented performance. These high performances support 3DGF as a promising material for humidity sensitive material.https://www.mdpi.com/1424-8220/18/12/4337three-dimensional graphene foamshumidity sensorfast responseuser interaction |
| spellingShingle | Yu Yu Yating Zhang Lufan Jin Zhiliang Chen Yifan Li Qingyan Li Mingxuan Cao Yongli Che Junbo Yang Jianquan Yao A Fast Response−Recovery 3D Graphene Foam Humidity Sensor for User Interaction Sensors three-dimensional graphene foams humidity sensor fast response user interaction |
| title | A Fast Response−Recovery 3D Graphene Foam Humidity Sensor for User Interaction |
| title_full | A Fast Response−Recovery 3D Graphene Foam Humidity Sensor for User Interaction |
| title_fullStr | A Fast Response−Recovery 3D Graphene Foam Humidity Sensor for User Interaction |
| title_full_unstemmed | A Fast Response−Recovery 3D Graphene Foam Humidity Sensor for User Interaction |
| title_short | A Fast Response−Recovery 3D Graphene Foam Humidity Sensor for User Interaction |
| title_sort | fast response recovery 3d graphene foam humidity sensor for user interaction |
| topic | three-dimensional graphene foams humidity sensor fast response user interaction |
| url | https://www.mdpi.com/1424-8220/18/12/4337 |
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