Ozone Sensing by In(2)O(3) Films Modified with Rh: Dimension Effect

We considered the effect of coverage of the surface of In(2)O(3) films with rhodium on the sensitivity of their electrophysical properties to ozone (1 ppm). The surface coverage with rhodium varied in the range of 0–0.1 ML. The In(2)O(3) films deposited by spray pyrolysis had a thickness of 40–50 nm...

Descripción completa

Detalles Bibliográficos
Autores principales: Korotcenkov, Ghenadii, Nehasil, Vaclav
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7962652/
https://www.ncbi.nlm.nih.gov/pubmed/33800333
http://dx.doi.org/10.3390/s21051886
_version_ 1783665504707149824
author Korotcenkov, Ghenadii
Nehasil, Vaclav
author_facet Korotcenkov, Ghenadii
Nehasil, Vaclav
author_sort Korotcenkov, Ghenadii
collection PubMed
description We considered the effect of coverage of the surface of In(2)O(3) films with rhodium on the sensitivity of their electrophysical properties to ozone (1 ppm). The surface coverage with rhodium varied in the range of 0–0.1 ML. The In(2)O(3) films deposited by spray pyrolysis had a thickness of 40–50 nm. The sensor response to ozone depends on the degree of rhodium coverage. This dependence has a pronounced maximum at a coverage of ~0.01 ML of Rh. An explanation is given for this effect. It is concluded that the observed changes are associated with the transition from the atomically dispersed state of rhodium to a 3D cluster state.
format Online
Article
Text
id pubmed-7962652
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-79626522021-03-17 Ozone Sensing by In(2)O(3) Films Modified with Rh: Dimension Effect Korotcenkov, Ghenadii Nehasil, Vaclav Sensors (Basel) Article We considered the effect of coverage of the surface of In(2)O(3) films with rhodium on the sensitivity of their electrophysical properties to ozone (1 ppm). The surface coverage with rhodium varied in the range of 0–0.1 ML. The In(2)O(3) films deposited by spray pyrolysis had a thickness of 40–50 nm. The sensor response to ozone depends on the degree of rhodium coverage. This dependence has a pronounced maximum at a coverage of ~0.01 ML of Rh. An explanation is given for this effect. It is concluded that the observed changes are associated with the transition from the atomically dispersed state of rhodium to a 3D cluster state. MDPI 2021-03-08 /pmc/articles/PMC7962652/ /pubmed/33800333 http://dx.doi.org/10.3390/s21051886 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Korotcenkov, Ghenadii
Nehasil, Vaclav
Ozone Sensing by In(2)O(3) Films Modified with Rh: Dimension Effect
title Ozone Sensing by In(2)O(3) Films Modified with Rh: Dimension Effect
title_full Ozone Sensing by In(2)O(3) Films Modified with Rh: Dimension Effect
title_fullStr Ozone Sensing by In(2)O(3) Films Modified with Rh: Dimension Effect
title_full_unstemmed Ozone Sensing by In(2)O(3) Films Modified with Rh: Dimension Effect
title_short Ozone Sensing by In(2)O(3) Films Modified with Rh: Dimension Effect
title_sort ozone sensing by in(2)o(3) films modified with rh: dimension effect
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7962652/
https://www.ncbi.nlm.nih.gov/pubmed/33800333
http://dx.doi.org/10.3390/s21051886
work_keys_str_mv AT korotcenkovghenadii ozonesensingbyin2o3filmsmodifiedwithrhdimensioneffect
AT nehasilvaclav ozonesensingbyin2o3filmsmodifiedwithrhdimensioneffect

Ejemplares similares