Electrical and Gas Sensor Properties of Nb(V) Doped Nanocrystalline β-Ga(2)O(3)

A flame spray pyrolysis (FSP) technique was applied to obtain pure and Nb(V)-doped nanocrystalline β-Ga(2)O(3), which were further studied as gas sensor materials. The obtained samples were characterized with XRD, XPS, TEM, Raman spectroscopy and BET method. Formation of GaNbO(4) phase is observed a...

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Autores principales: Andreev, Matvei, Topchiy, Maxim, Asachenko, Andrey, Beltiukov, Artemii, Amelichev, Vladimir, Sagitova, Alina, Maksimov, Sergey, Smirnov, Andrei, Rumyantseva, Marina, Krivetskiy, Valeriy
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9781856/
https://www.ncbi.nlm.nih.gov/pubmed/36556720
http://dx.doi.org/10.3390/ma15248916
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author Andreev, Matvei
Topchiy, Maxim
Asachenko, Andrey
Beltiukov, Artemii
Amelichev, Vladimir
Sagitova, Alina
Maksimov, Sergey
Smirnov, Andrei
Rumyantseva, Marina
Krivetskiy, Valeriy
author_facet Andreev, Matvei
Topchiy, Maxim
Asachenko, Andrey
Beltiukov, Artemii
Amelichev, Vladimir
Sagitova, Alina
Maksimov, Sergey
Smirnov, Andrei
Rumyantseva, Marina
Krivetskiy, Valeriy
author_sort Andreev, Matvei
collection PubMed
description A flame spray pyrolysis (FSP) technique was applied to obtain pure and Nb(V)-doped nanocrystalline β-Ga(2)O(3), which were further studied as gas sensor materials. The obtained samples were characterized with XRD, XPS, TEM, Raman spectroscopy and BET method. Formation of GaNbO(4) phase is observed at high annealing temperatures. Transition of Ga(III) into Ga(I) state during Nb(V) doping prevents donor charge carriers generation and hinders considerable improvement of electrical and gas sensor properties of β-Ga(2)O(3). Superior gas sensor performance of obtained ultrafine materials at lower operating temperatures compared to previously reported thin film Ga(2)O(3) materials is shown.
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spelling pubmed-97818562022-12-24 Electrical and Gas Sensor Properties of Nb(V) Doped Nanocrystalline β-Ga(2)O(3) Andreev, Matvei Topchiy, Maxim Asachenko, Andrey Beltiukov, Artemii Amelichev, Vladimir Sagitova, Alina Maksimov, Sergey Smirnov, Andrei Rumyantseva, Marina Krivetskiy, Valeriy Materials (Basel) Article A flame spray pyrolysis (FSP) technique was applied to obtain pure and Nb(V)-doped nanocrystalline β-Ga(2)O(3), which were further studied as gas sensor materials. The obtained samples were characterized with XRD, XPS, TEM, Raman spectroscopy and BET method. Formation of GaNbO(4) phase is observed at high annealing temperatures. Transition of Ga(III) into Ga(I) state during Nb(V) doping prevents donor charge carriers generation and hinders considerable improvement of electrical and gas sensor properties of β-Ga(2)O(3). Superior gas sensor performance of obtained ultrafine materials at lower operating temperatures compared to previously reported thin film Ga(2)O(3) materials is shown. MDPI 2022-12-13 /pmc/articles/PMC9781856/ /pubmed/36556720 http://dx.doi.org/10.3390/ma15248916 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Andreev, Matvei
Topchiy, Maxim
Asachenko, Andrey
Beltiukov, Artemii
Amelichev, Vladimir
Sagitova, Alina
Maksimov, Sergey
Smirnov, Andrei
Rumyantseva, Marina
Krivetskiy, Valeriy
Electrical and Gas Sensor Properties of Nb(V) Doped Nanocrystalline β-Ga(2)O(3)
title Electrical and Gas Sensor Properties of Nb(V) Doped Nanocrystalline β-Ga(2)O(3)
title_full Electrical and Gas Sensor Properties of Nb(V) Doped Nanocrystalline β-Ga(2)O(3)
title_fullStr Electrical and Gas Sensor Properties of Nb(V) Doped Nanocrystalline β-Ga(2)O(3)
title_full_unstemmed Electrical and Gas Sensor Properties of Nb(V) Doped Nanocrystalline β-Ga(2)O(3)
title_short Electrical and Gas Sensor Properties of Nb(V) Doped Nanocrystalline β-Ga(2)O(3)
title_sort electrical and gas sensor properties of nb(v) doped nanocrystalline β-ga(2)o(3)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9781856/
https://www.ncbi.nlm.nih.gov/pubmed/36556720
http://dx.doi.org/10.3390/ma15248916
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