Facet controlled growth mechanism of SnO2 (101) nanosheet assembled film via cold crystallization

Abstract Cold crystallization of SnO2 was realized in aqueous solutions, where crystal growth was controlled to form SnO2 (101) nanosheet assembled films for devices such as chemical sensors. The nanosheets grew directly on a fluorine-doped tin oxide substrate without a seed layer or a buffer layer....

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Autor principal:	Yoshitake Masuda
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/61464b35c2954b8aa15ff788e4b602f5
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spelling	oai:doaj.org-article:61464b35c2954b8aa15ff788e4b602f52021-12-02T15:49:50ZFacet controlled growth mechanism of SnO2 (101) nanosheet assembled film via cold crystallization10.1038/s41598-021-90939-42045-2322https://doaj.org/article/61464b35c2954b8aa15ff788e4b602f52021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-90939-4https://doaj.org/toc/2045-2322Abstract Cold crystallization of SnO2 was realized in aqueous solutions, where crystal growth was controlled to form SnO2 (101) nanosheet assembled films for devices such as chemical sensors. The nanosheets grew directly on a fluorine-doped tin oxide substrate without a seed layer or a buffer layer. The nanosheets had a thickness of 5–10 nm and an in-plane size of 100–1600 nm. Moreover, the large flat surface of the (101) facet was metastable. The thickness of the SnO2 (101) nanosheet assembled film was approximately 800 nm, and the film had a gradient structure that contained many connected nanosheets. TEM results revealed that the predominate branch angles between any two connected nanosheets were 90° and 46.48°, corresponding to type I and type II connections, respectively. These connections were consistent with the calculations based on crystallography. Crystallographic analysis clarified the characteristic crystal growth of the SnO2 (101) nanosheet assembled film in the aqueous solution. Furthermore, we demonstrate that the metastable (101) facet can be exploited to control the rate of crystal growth by adjusting the etching condition.Yoshitake MasudaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yoshitake Masuda Facet controlled growth mechanism of SnO2 (101) nanosheet assembled film via cold crystallization
description	Abstract Cold crystallization of SnO2 was realized in aqueous solutions, where crystal growth was controlled to form SnO2 (101) nanosheet assembled films for devices such as chemical sensors. The nanosheets grew directly on a fluorine-doped tin oxide substrate without a seed layer or a buffer layer. The nanosheets had a thickness of 5–10 nm and an in-plane size of 100–1600 nm. Moreover, the large flat surface of the (101) facet was metastable. The thickness of the SnO2 (101) nanosheet assembled film was approximately 800 nm, and the film had a gradient structure that contained many connected nanosheets. TEM results revealed that the predominate branch angles between any two connected nanosheets were 90° and 46.48°, corresponding to type I and type II connections, respectively. These connections were consistent with the calculations based on crystallography. Crystallographic analysis clarified the characteristic crystal growth of the SnO2 (101) nanosheet assembled film in the aqueous solution. Furthermore, we demonstrate that the metastable (101) facet can be exploited to control the rate of crystal growth by adjusting the etching condition.
format	article
author	Yoshitake Masuda
author_facet	Yoshitake Masuda
author_sort	Yoshitake Masuda
title	Facet controlled growth mechanism of SnO2 (101) nanosheet assembled film via cold crystallization
title_short	Facet controlled growth mechanism of SnO2 (101) nanosheet assembled film via cold crystallization
title_full	Facet controlled growth mechanism of SnO2 (101) nanosheet assembled film via cold crystallization
title_fullStr	Facet controlled growth mechanism of SnO2 (101) nanosheet assembled film via cold crystallization
title_full_unstemmed	Facet controlled growth mechanism of SnO2 (101) nanosheet assembled film via cold crystallization
title_sort	facet controlled growth mechanism of sno2 (101) nanosheet assembled film via cold crystallization
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/61464b35c2954b8aa15ff788e4b602f5
work_keys_str_mv	AT yoshitakemasuda facetcontrolledgrowthmechanismofsno2101nanosheetassembledfilmviacoldcrystallization
_version_	1718385692680126464

Facet controlled growth mechanism of SnO2 (101) nanosheet assembled film via cold crystallization

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