Preparation of laser induced periodic surface structures for gas sensing thin films and gas sensing verification of a NiO based sensor structure

Hotovy, Ivan; Zehetner, Johann; Rehacek, Vlastimil; Mikolasek, Miroslav; Kostic, Ivan; Serecunova, Stanislava; Seyringer, Dana; Dohnal, Fadi

doi:10.2478/jee-2024-0004

Abstract

This study presents different approaches to increase the sensing area of NiO based semiconducting metal oxide gas sensors. Micro- and nanopatterned laser induced periodic surface structures (LIPSS) are generated on silicon and Si/SiO₂ substrates. The surface morphologies of the fabricated samples are examined by FE SEM. We select the silicon samples with an intermediate Si₃N₄ layer due to its superior isolation quality over the thermal oxide for evaluating the hydrogen and acetone sensitivity of a NiO based test sensor.

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Preparation of laser induced periodic surface structures for gas sensing thin films and gas sensing verification of a NiO based sensor structure

Abstract

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