Fabrication and performance of capacitive humidity and strain sensors that incorporate 3D-printed nanocomposite electrodes
This work reports on advances in capacitive humidity and strain sensor technologies through the development of state-of-the-art 3D-printed Interdigitated Electrodes (IDEs) coated with a unique GO/ PVA coating. These IDEs are constructed using a novel composite filament of MWCNTs and polylactic acid...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2024-01-01
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| Series: | Sensors International |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666351123000463 |
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| author | Stefanos Matsalis George Paterakis Nikos Koutroumanis George Anagnostopoulos Costas Galiotis |
| author_facet | Stefanos Matsalis George Paterakis Nikos Koutroumanis George Anagnostopoulos Costas Galiotis |
| author_sort | Stefanos Matsalis |
| collection | DOAJ |
| description | This work reports on advances in capacitive humidity and strain sensor technologies through the development of state-of-the-art 3D-printed Interdigitated Electrodes (IDEs) coated with a unique GO/ PVA coating. These IDEs are constructed using a novel composite filament of MWCNTs and polylactic acid (PLA) that offer superior flexural strength and electrical properties compared to conventional polymer matrices.We show that the GO/ PVA coating appears to be sensitive over the full range of relative humidity (RH) from 0% to 100%, with a remarkable capacitance change of 300 pF/%RH. Fast response and recovery times of 60 and 42 s, respectively, have been measured outperforming existing works that utilize metal electrodes. Regarding temperature dependence, the coatings endure conditions ranging from ambient to −25 °C, even in the presence of ice. Furthermore, at 50% RH, the sensors are shown to achieve a maximum sensitivity of 34.2 within a strain range of up to 2%.In conclusion, this work represents a significant advancement in cutting-edge sensor technologies, offering unprecedented capabilities for humidity and strain sensing performance for a wide range of applications. |
| format | Article |
| id | doaj-art-b1313d90b43e4e7a88b949bf7246f40a |
| institution | Kabale University |
| issn | 2666-3511 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Sensors International |
| spelling | doaj-art-b1313d90b43e4e7a88b949bf7246f40a2025-01-04T04:57:07ZengKeAi Communications Co., Ltd.Sensors International2666-35112024-01-015100272Fabrication and performance of capacitive humidity and strain sensors that incorporate 3D-printed nanocomposite electrodesStefanos Matsalis0George Paterakis1Nikos Koutroumanis2George Anagnostopoulos3Costas Galiotis4Department of Chemical Engineering, University of Patras, 26504, Patra, Greece; Institute for Chemical Engineering Sciences, Foundation for Research and Technology Hellas, Platani, 26504, Patra, GreeceDepartment of Chemical Engineering, University of Patras, 26504, Patra, Greece; Institute for Chemical Engineering Sciences, Foundation for Research and Technology Hellas, Platani, 26504, Patra, GreeceInstitute for Chemical Engineering Sciences, Foundation for Research and Technology Hellas, Platani, 26504, Patra, GreeceInstitute for Chemical Engineering Sciences, Foundation for Research and Technology Hellas, Platani, 26504, Patra, Greece; Corresponding author.Department of Chemical Engineering, University of Patras, 26504, Patra, Greece; Institute for Chemical Engineering Sciences, Foundation for Research and Technology Hellas, Platani, 26504, Patra, Greece; Corresponding author. Department of Chemical Engineering, University of Patras, 26504, Patra, Greece.This work reports on advances in capacitive humidity and strain sensor technologies through the development of state-of-the-art 3D-printed Interdigitated Electrodes (IDEs) coated with a unique GO/ PVA coating. These IDEs are constructed using a novel composite filament of MWCNTs and polylactic acid (PLA) that offer superior flexural strength and electrical properties compared to conventional polymer matrices.We show that the GO/ PVA coating appears to be sensitive over the full range of relative humidity (RH) from 0% to 100%, with a remarkable capacitance change of 300 pF/%RH. Fast response and recovery times of 60 and 42 s, respectively, have been measured outperforming existing works that utilize metal electrodes. Regarding temperature dependence, the coatings endure conditions ranging from ambient to −25 °C, even in the presence of ice. Furthermore, at 50% RH, the sensors are shown to achieve a maximum sensitivity of 34.2 within a strain range of up to 2%.In conclusion, this work represents a significant advancement in cutting-edge sensor technologies, offering unprecedented capabilities for humidity and strain sensing performance for a wide range of applications.http://www.sciencedirect.com/science/article/pii/S2666351123000463Graphene oxideInterdigitated electrodesHumidityStrainSensing |
| spellingShingle | Stefanos Matsalis George Paterakis Nikos Koutroumanis George Anagnostopoulos Costas Galiotis Fabrication and performance of capacitive humidity and strain sensors that incorporate 3D-printed nanocomposite electrodes Sensors International Graphene oxide Interdigitated electrodes Humidity Strain Sensing |
| title | Fabrication and performance of capacitive humidity and strain sensors that incorporate 3D-printed nanocomposite electrodes |
| title_full | Fabrication and performance of capacitive humidity and strain sensors that incorporate 3D-printed nanocomposite electrodes |
| title_fullStr | Fabrication and performance of capacitive humidity and strain sensors that incorporate 3D-printed nanocomposite electrodes |
| title_full_unstemmed | Fabrication and performance of capacitive humidity and strain sensors that incorporate 3D-printed nanocomposite electrodes |
| title_short | Fabrication and performance of capacitive humidity and strain sensors that incorporate 3D-printed nanocomposite electrodes |
| title_sort | fabrication and performance of capacitive humidity and strain sensors that incorporate 3d printed nanocomposite electrodes |
| topic | Graphene oxide Interdigitated electrodes Humidity Strain Sensing |
| url | http://www.sciencedirect.com/science/article/pii/S2666351123000463 |
| work_keys_str_mv | AT stefanosmatsalis fabricationandperformanceofcapacitivehumidityandstrainsensorsthatincorporate3dprintednanocompositeelectrodes AT georgepaterakis fabricationandperformanceofcapacitivehumidityandstrainsensorsthatincorporate3dprintednanocompositeelectrodes AT nikoskoutroumanis fabricationandperformanceofcapacitivehumidityandstrainsensorsthatincorporate3dprintednanocompositeelectrodes AT georgeanagnostopoulos fabricationandperformanceofcapacitivehumidityandstrainsensorsthatincorporate3dprintednanocompositeelectrodes AT costasgaliotis fabricationandperformanceofcapacitivehumidityandstrainsensorsthatincorporate3dprintednanocompositeelectrodes |