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Nanocrystalline TiO2 Sensitive Layer for Plasmonic Hydrogen Sensing.

Authors
  • Gazzola, Enrico1
  • Cittadini, Michela2
  • Angiola, Marco2
  • Brigo, Laura2
  • Guglielmi, Massimo2
  • Romanato, Filippo1, 3
  • Martucci, Alessandro2, 4
  • 1 Department of Physics and Astronomy "G. Galilei", University of Padova, Via Marzolo 8, 35131 Padova, Italy. , (Italy)
  • 2 Department of Industrial Engineering, University of Padova, Via Marzolo 9, 35131 Padova, Italy. , (Italy)
  • 3 Institute for Materials Manufacturing, CNR, Area Science Park, Strada Statale 14 Km 163.5, 34149 Trieste, Italy. , (Italy)
  • 4 Istituto di Fotonica e Nanotecnologie, CNR, via Trasea 7, 35131 Padova, Italy. , (Italy)
Type
Published Article
Journal
Nanomaterials
Publisher
MDPI AG
Publication Date
Jul 29, 2020
Volume
10
Issue
8
Identifiers
DOI: 10.3390/nano10081490
PMID: 32751278
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Solution processed TiO2 anatase film was used as sensitive layer for H2 detection for two plasmonic sensor configurations: A grating-coupled surface plasmon resonance sensor and a localized surface plasmon resonance sensor with gold nanoparticles. The main purpose of this paper is to elucidate the different H2 response observed for the two types of sensors which can be explained considering the hydrogen dissociation taking place on TiO2 at high temperature and the photocatalytic activity of the gold nanoparticles.

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