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Abstract
This paper explores strategies to control the humidity sensitivity of azobenzene isomerisation kinetics in polymer thin films for optical humidity sensing. The research investigates how water absorption properties of the polymer, azobenzene content, and azobenzene chemical structure affect humidity sensitivity. A library of tautomerizable azobenzenes is studied, and simple strategies for optimizing azobenzene-based optical humidity sensors are proposed, aiming to improve sensor design and commercial viability.
Publisher
Communications Materials
Published On
Oct 02, 2024
Authors
Sami Vesamäki, Henning Meteling, Roshan Nasare, Antti Siiskonen, Jani Patrakka, Nelmary Roas-Escalona, Markus Linder, Matti Virkki, Arri Priimagi
Tags
azobenzene
humidity sensing
polymer films
isomerisation kinetics
sensor optimization
water absorption
chemical structure

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