Strong texture tuning along different crystalline directions in glass-supported CeO2 thin films by ultrasonic spray pyrolysis

Abstract The strong facet-dependent performance of glass-supported CeO2 thin films in different applications (catalysis, smart windows, etc.) has been the target of diverse fundamental and technological approaches. However, the design of accurate, cost-effective and scalable methods with the potenti...

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Autores principales:	Inti Zumeta-Dubé, José Manuel García Rangel, Jorge Roque, Issis Claudette Romero-Ibarra, Mario Fidel García Sánchez
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1b77214e2c984f15be987710fd25c35e
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spelling	oai:doaj.org-article:1b77214e2c984f15be987710fd25c35e2021-12-02T15:23:38ZStrong texture tuning along different crystalline directions in glass-supported CeO2 thin films by ultrasonic spray pyrolysis10.1038/s41598-021-81353-x2045-2322https://doaj.org/article/1b77214e2c984f15be987710fd25c35e2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81353-xhttps://doaj.org/toc/2045-2322Abstract The strong facet-dependent performance of glass-supported CeO2 thin films in different applications (catalysis, smart windows, etc.) has been the target of diverse fundamental and technological approaches. However, the design of accurate, cost-effective and scalable methods with the potential for large-area coverage that produce highly textured glass-supported CeO2 thin films remains a technological challenge. In the present work, it is demonstrated that under proper tuning conditions, the ultrasonic spray pyrolysis technique enables one to obtain glass-supported polycrystalline CeO2 films with noticeable texture along both the (100) and (111) directions, as well as with randomly oriented crystallites (no texture). The influence of flow rates, solution molarity, and substrate temperature on the texture and morphological characteristics, as well as optical absorption and Raman response of the deposited films, is evaluated. The obtained results are discussed on the basis of the combined dependence of the CeO2-exposed surfaces on the thermodynamic stability of the corresponding facets and the reaction kinetics, which modulate the crystallite growth direction.Inti Zumeta-DubéJosé Manuel García RangelJorge RoqueIssis Claudette Romero-IbarraMario Fidel García SánchezNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Inti Zumeta-Dubé José Manuel García Rangel Jorge Roque Issis Claudette Romero-Ibarra Mario Fidel García Sánchez Strong texture tuning along different crystalline directions in glass-supported CeO2 thin films by ultrasonic spray pyrolysis
description	Abstract The strong facet-dependent performance of glass-supported CeO2 thin films in different applications (catalysis, smart windows, etc.) has been the target of diverse fundamental and technological approaches. However, the design of accurate, cost-effective and scalable methods with the potential for large-area coverage that produce highly textured glass-supported CeO2 thin films remains a technological challenge. In the present work, it is demonstrated that under proper tuning conditions, the ultrasonic spray pyrolysis technique enables one to obtain glass-supported polycrystalline CeO2 films with noticeable texture along both the (100) and (111) directions, as well as with randomly oriented crystallites (no texture). The influence of flow rates, solution molarity, and substrate temperature on the texture and morphological characteristics, as well as optical absorption and Raman response of the deposited films, is evaluated. The obtained results are discussed on the basis of the combined dependence of the CeO2-exposed surfaces on the thermodynamic stability of the corresponding facets and the reaction kinetics, which modulate the crystallite growth direction.
format	article
author	Inti Zumeta-Dubé José Manuel García Rangel Jorge Roque Issis Claudette Romero-Ibarra Mario Fidel García Sánchez
author_facet	Inti Zumeta-Dubé José Manuel García Rangel Jorge Roque Issis Claudette Romero-Ibarra Mario Fidel García Sánchez
author_sort	Inti Zumeta-Dubé
title	Strong texture tuning along different crystalline directions in glass-supported CeO2 thin films by ultrasonic spray pyrolysis
title_short	Strong texture tuning along different crystalline directions in glass-supported CeO2 thin films by ultrasonic spray pyrolysis
title_full	Strong texture tuning along different crystalline directions in glass-supported CeO2 thin films by ultrasonic spray pyrolysis
title_fullStr	Strong texture tuning along different crystalline directions in glass-supported CeO2 thin films by ultrasonic spray pyrolysis
title_full_unstemmed	Strong texture tuning along different crystalline directions in glass-supported CeO2 thin films by ultrasonic spray pyrolysis
title_sort	strong texture tuning along different crystalline directions in glass-supported ceo2 thin films by ultrasonic spray pyrolysis
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/1b77214e2c984f15be987710fd25c35e
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Strong texture tuning along different crystalline directions in glass-supported CeO2 thin films by ultrasonic spray pyrolysis

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