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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Coclite, Anna Maria
University of Bari Aldo Moro
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Icephobic Gradient Polymer Coatings Coupled with Electromechanical De-icing Systems: A Promising Ice Repellent Hybrid Systemcitations
- 2024Functionalizing Surfaces by Physical Vapor Deposition To Measure the Degree of Nanoscale Contact Using FRET
- 2023Capillary-Driven Water Transport by Contrast Wettability-Based Durable Surfacescitations
- 2023Advances in surface modification and functionalization for tailoring the characteristics of thin films and membranes via chemical vapor deposition techniquescitations
- 2023Chemical vapor deposition of carbohydrate-based polymerscitations
- 2022Tuning the Porosity of Piezoelectric Zinc Oxide Thin Films Obtained from Molecular Layer-Deposited “Zincones”citations
- 2022Tuning the Porosity of Piezoelectric Zinc Oxide Thin Films Obtained from Molecular Layer-Deposited “Zincones”citations
- 2022Shedding light on the initial growth of ZnO during plasma-enhanced atomic layer deposition on vapor-deposited polymer thin filmscitations
- 2022Measurements of Temperature and Humidity Responsive Swelling of Thin Hydrogel Films by Interferometry in an Environmental Chambercitations
- 2022Humidity Responsive Reflection Grating Made by Ultrafast Nanoimprinting of a Hydrogel Thin Filmcitations
- 2021Multiresponsive Soft Actuators Based on a Thermoresponsive Hydrogel and Embedded Laser-Induced Graphenecitations
- 2021Oxidative Chemical Vapor Deposition of Conducting Polymer Films on Nanostructured Surfaces for Piezoresistive Sensor Applicationscitations
- 2020Fast optical humidity sensor based on nanostructured hydrogels
- 2020Conformal Coating of Powder by Initiated Chemical Vapor Deposition on Vibrating Substratecitations
- 2020Solvent-Free Powder Synthesis and Thin Film Chemical Vapor Deposition of a Zinc Bipyridyl-Triazolate Frameworkcitations
- 2020Initiated Chemical Vapor Deposition of Crosslinked Organic Coatings for Controlling Gentamicin Deliverycitations
- 2019Fast Optical Humidity Sensor Based on Hydrogel Thin Film Expansion for Harsh Environmentcitations
- 2017Simple method for the quantitative analysis of thin copolymer films on substrates by infrared spectroscopy using direct calibrationcitations
- 2016Deposition kinetics and characterization of stable ionomers from hexamethyldisiloxane and methacrylic acid by plasma enhanced chemical vapor depositioncitations
Places of action
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article
Fast Optical Humidity Sensor Based on Hydrogel Thin Film Expansion for Harsh Environment
Abstract
With the application of a recently developed deposition method called initiated chemical vapor deposition (iCVD), responsive hydrogel thin films in the order of a few hundred nanometers were created. When in contact with humid air, the hydrogel layer increases its thickness considerably. The measurement of the thickness change was realized interferometrically with a laser and a broadband light source in two different implementations. The relative change in thickness with respect to humidity can be described with the Flory–Huggins theory. The required Flory–Huggins interaction parameter was determined for the actual hydrogel composition. The setup was designed without electric components in the vicinity of the active sensor layer and is therefore applicable in harsh environments such as explosive or corrosive ones. The implemented sensor prototype delivered reproducible relative humidity ( RH ) values and the achieved response time for an abrupt change of the humidity τ63≤2.5 s was about three times faster compared to one of the fastest commercially available sensors on the market.