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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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Priimagi, Arri
Tampere University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024Strategies to control humidity sensitivity of azobenzene isomerisation kinetics in polymer thin filmscitations
- 2022Multistage Reversible Tg Photomodulation and Hardening of Hydrazone-Containing Polymerscitations
- 2021Multistage Reversible Tg Photomodulation and Hardening of Hydrazone-Containing Polymerscitations
- 2020Fluorination of pyrene-based organic semiconductors enhances the performance of light emitting diodes and halide perovskite solar cellscitations
- 2020Fluorination of pyrene-based organic semiconductors enhances the performance of light emitting diodes and halide perovskite solar cellscitations
- 2019Low-dimensional formamidinium lead perovskite architectures via controllable solvent intercalationcitations
- 2019Eco-friendly and low-cost phenothiazine-based hole-transporting material for high performance perovskite solar cells
- 2018Programming Photoresponse in Liquid Crystal Polymer Actuators with Laser Projectorcitations
- 2018Thermal Isomerization of Hydroxyazobenzenes as a Platform for Vapor Sensingcitations
- 2017Self-Regulating Iris Based on Light-Actuated Liquid Crystal Elastomercitations
- 2017Crystallisation-enhanced bulk hole mobility in phenothiazine-based organic semiconductorscitations
- 2016Photoresponsive liquid-crystalline polymer films bilayered with an inverse opal structurecitations
- 2015From partial to complete optical erasure of azobenzene-polymer gratings effect of molecular weightcitations
- 2013Photoinduced surface patterning of azobenzene-containing supramolecular dendrons, dendrimers and dendronized polymerscitations
Places of action
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article
Thermal Isomerization of Hydroxyazobenzenes as a Platform for Vapor Sensing
Abstract
<p>Photoisomerization of azobenzene derivatives is a versatile tool for devising light-responsive materials for a broad range of applications in photonics, robotics, microfabrication, and biomaterials science. Some applications rely on fast isomerization kinetics, while for others, bistable azobenzenes are preferred. However, solid-state materials where the isomerization kinetics depends on the environmental conditions have been largely overlooked. Herein, an approach to utilize the environmental sensitivity of isomerization kinetics is developed. It is demonstrated that thin polymer films containing hydroxyazobenzenes offer a conceptually novel platform for sensing hydrogen-bonding vapors in the environment. The concept is based on accelerating the thermal cis-trans isomerization rate through hydrogen-bond-catalyzed changes in the thermal isomerization pathway, which allows for devising a relative humidity sensor with high sensitivity and quick response to relative humidity changes. The approach is also applicable for detecting other hydrogen-bonding vapors such as methanol and ethanol. Employing isomerization kinetics of azobenzenes for vapor sensing opens new intriguing possibilities for using azobenzene molecules in the future.</p>