Selective in-plane Fabry-Pérot gas sensor functionalized with polymer

Abstract

Smell is one of the last senses still not completely replicated. Artificial gas sensors do manage to reach enough sensitivity but selectivity is still an issue. However, it is essential to several industries and smart cities. In this work, the selectivity of a previously reported optical gas sensor is demonstrated using three polymers for functionalization. Different sensitivities are obtained for toluene, 1-butanol, limonene and valeric acid.