Water‐Based Solution Processing and Wafer‐Scale Integration of All‐Graphene Humidity Sensors
Abstract One of the main advantages of 2D materials for various applications is that they can be prepared in form of water‐based solutions. The high yield and cost‐effectiveness of this method make them of great interest for printed electronics, composites, and bio‐ and healthcare technologies. Howe...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-08-01
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| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.201802318 |
| _version_ | 1811322276085235712 |
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| author | Elias Torres Alonso Dong‐Wook Shin Gopika Rajan Ana I. S. Neves Saverio Russo Monica F. Craciun |
| author_facet | Elias Torres Alonso Dong‐Wook Shin Gopika Rajan Ana I. S. Neves Saverio Russo Monica F. Craciun |
| author_sort | Elias Torres Alonso |
| collection | DOAJ |
| description | Abstract One of the main advantages of 2D materials for various applications is that they can be prepared in form of water‐based solutions. The high yield and cost‐effectiveness of this method make them of great interest for printed electronics, composites, and bio‐ and healthcare technologies. However, once deposited on a substrate, etching away these solution‐processed materials is a difficult task, yet crucial for pattern definition and thus device fabrication. In particular, the realization of micrometer‐sized patterns requires mesh and paste optimization when screen‐printed or solvent‐engineered and surface functionalization when inkjet‐printed, both usually involving additional postdeposition steps. These constraints are holding back the integration of these 2D materials in devices and applications. In this work, a method for the fabrication of micrometer‐sized well‐defined patterns in water‐based 2D materials is presented, with an extensive characterization of the films and patterns obtained. The method is ultimately used to create humidity sensors with performance comparable to that of commercial ones. These sensor devices are fabricated onto a 4′ silicon and polyethylene terephthalate (PET) wafers to create all‐graphene humidity sensors that are flexible, transparent, and compatible with current complementary metal–oxide–semiconductor (CMOS) and roll‐to‐roll workflows. |
| first_indexed | 2024-04-13T13:33:32Z |
| format | Article |
| id | doaj.art-2403700181ac4c6d88f40adfaca0663f |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-04-13T13:33:32Z |
| publishDate | 2019-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-2403700181ac4c6d88f40adfaca0663f2022-12-22T02:44:53ZengWileyAdvanced Science2198-38442019-08-01615n/an/a10.1002/advs.201802318Water‐Based Solution Processing and Wafer‐Scale Integration of All‐Graphene Humidity SensorsElias Torres Alonso0Dong‐Wook Shin1Gopika Rajan2Ana I. S. Neves3Saverio Russo4Monica F. Craciun5Centre for Graphene Science, College of Engineering, Mathematics and Physical Sciences University of Exeter EX4 4QF Exeter UKCentre for Graphene Science, College of Engineering, Mathematics and Physical Sciences University of Exeter EX4 4QF Exeter UKCentre for Graphene Science, College of Engineering, Mathematics and Physical Sciences University of Exeter EX4 4QF Exeter UKCentre for Graphene Science, College of Engineering, Mathematics and Physical Sciences University of Exeter EX4 4QF Exeter UKCentre for Graphene Science, College of Engineering, Mathematics and Physical Sciences University of Exeter EX4 4QF Exeter UKCentre for Graphene Science, College of Engineering, Mathematics and Physical Sciences University of Exeter EX4 4QF Exeter UKAbstract One of the main advantages of 2D materials for various applications is that they can be prepared in form of water‐based solutions. The high yield and cost‐effectiveness of this method make them of great interest for printed electronics, composites, and bio‐ and healthcare technologies. However, once deposited on a substrate, etching away these solution‐processed materials is a difficult task, yet crucial for pattern definition and thus device fabrication. In particular, the realization of micrometer‐sized patterns requires mesh and paste optimization when screen‐printed or solvent‐engineered and surface functionalization when inkjet‐printed, both usually involving additional postdeposition steps. These constraints are holding back the integration of these 2D materials in devices and applications. In this work, a method for the fabrication of micrometer‐sized well‐defined patterns in water‐based 2D materials is presented, with an extensive characterization of the films and patterns obtained. The method is ultimately used to create humidity sensors with performance comparable to that of commercial ones. These sensor devices are fabricated onto a 4′ silicon and polyethylene terephthalate (PET) wafers to create all‐graphene humidity sensors that are flexible, transparent, and compatible with current complementary metal–oxide–semiconductor (CMOS) and roll‐to‐roll workflows.https://doi.org/10.1002/advs.201802318complementary metal–oxide–semiconductors (CMOSs)graphene oxidepatterningroll‐to‐rollsensorswater‐exfoliated graphene |
| spellingShingle | Elias Torres Alonso Dong‐Wook Shin Gopika Rajan Ana I. S. Neves Saverio Russo Monica F. Craciun Water‐Based Solution Processing and Wafer‐Scale Integration of All‐Graphene Humidity Sensors Advanced Science complementary metal–oxide–semiconductors (CMOSs) graphene oxide patterning roll‐to‐roll sensors water‐exfoliated graphene |
| title | Water‐Based Solution Processing and Wafer‐Scale Integration of All‐Graphene Humidity Sensors |
| title_full | Water‐Based Solution Processing and Wafer‐Scale Integration of All‐Graphene Humidity Sensors |
| title_fullStr | Water‐Based Solution Processing and Wafer‐Scale Integration of All‐Graphene Humidity Sensors |
| title_full_unstemmed | Water‐Based Solution Processing and Wafer‐Scale Integration of All‐Graphene Humidity Sensors |
| title_short | Water‐Based Solution Processing and Wafer‐Scale Integration of All‐Graphene Humidity Sensors |
| title_sort | water based solution processing and wafer scale integration of all graphene humidity sensors |
| topic | complementary metal–oxide–semiconductors (CMOSs) graphene oxide patterning roll‐to‐roll sensors water‐exfoliated graphene |
| url | https://doi.org/10.1002/advs.201802318 |
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