Spherulitic and rotational crystal growth of Quartz thin films

Abstract To obtain crystalline thin films of alpha-Quartz represents a challenge due to the tendency for the material towards spherulitic growth. Thus, understanding the mechanisms that give rise to spherulitic growth can help regulate the growth process. Here the spherulitic type of 2D crystal grow...

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Autores principales:	Nick R. Lutjes, Silang Zhou, Jordi Antoja-Lleonart, Beatriz Noheda, Václav Ocelík
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b83f3364ae004e6faa9602b23503a62a
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spelling	oai:doaj.org-article:b83f3364ae004e6faa9602b23503a62a2021-12-02T17:03:50ZSpherulitic and rotational crystal growth of Quartz thin films10.1038/s41598-021-94147-y2045-2322https://doaj.org/article/b83f3364ae004e6faa9602b23503a62a2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94147-yhttps://doaj.org/toc/2045-2322Abstract To obtain crystalline thin films of alpha-Quartz represents a challenge due to the tendency for the material towards spherulitic growth. Thus, understanding the mechanisms that give rise to spherulitic growth can help regulate the growth process. Here the spherulitic type of 2D crystal growth in thin amorphous Quartz films was analyzed by electron back-scatter diffraction (EBSD). EBSD was used to measure the size, orientation, and rotation of crystallographic grains in polycrystalline SiO2 and GeO2 thin films with high spatial resolution. Individual spherulitic Quartz crystal colonies contain primary and secondary single crystal fibers, which grow radially from the colony center towards its edge, and fill a near circular crystalline area completely. During their growth, individual fibers form so-called rotational crystals, when some lattice planes are continuously bent. The directions of the lattice rotation axes in the fibers were determined by an enhanced analysis of EBSD data. A possible mechanism, including the generation of the particular type of dislocation(s), is suggested.Nick R. LutjesSilang ZhouJordi Antoja-LleonartBeatriz NohedaVáclav OcelíkNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Nick R. Lutjes Silang Zhou Jordi Antoja-Lleonart Beatriz Noheda Václav Ocelík Spherulitic and rotational crystal growth of Quartz thin films
description	Abstract To obtain crystalline thin films of alpha-Quartz represents a challenge due to the tendency for the material towards spherulitic growth. Thus, understanding the mechanisms that give rise to spherulitic growth can help regulate the growth process. Here the spherulitic type of 2D crystal growth in thin amorphous Quartz films was analyzed by electron back-scatter diffraction (EBSD). EBSD was used to measure the size, orientation, and rotation of crystallographic grains in polycrystalline SiO2 and GeO2 thin films with high spatial resolution. Individual spherulitic Quartz crystal colonies contain primary and secondary single crystal fibers, which grow radially from the colony center towards its edge, and fill a near circular crystalline area completely. During their growth, individual fibers form so-called rotational crystals, when some lattice planes are continuously bent. The directions of the lattice rotation axes in the fibers were determined by an enhanced analysis of EBSD data. A possible mechanism, including the generation of the particular type of dislocation(s), is suggested.
format	article
author	Nick R. Lutjes Silang Zhou Jordi Antoja-Lleonart Beatriz Noheda Václav Ocelík
author_facet	Nick R. Lutjes Silang Zhou Jordi Antoja-Lleonart Beatriz Noheda Václav Ocelík
author_sort	Nick R. Lutjes
title	Spherulitic and rotational crystal growth of Quartz thin films
title_short	Spherulitic and rotational crystal growth of Quartz thin films
title_full	Spherulitic and rotational crystal growth of Quartz thin films
title_fullStr	Spherulitic and rotational crystal growth of Quartz thin films
title_full_unstemmed	Spherulitic and rotational crystal growth of Quartz thin films
title_sort	spherulitic and rotational crystal growth of quartz thin films
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b83f3364ae004e6faa9602b23503a62a
work_keys_str_mv	AT nickrlutjes spheruliticandrotationalcrystalgrowthofquartzthinfilms AT silangzhou spheruliticandrotationalcrystalgrowthofquartzthinfilms AT jordiantojalleonart spheruliticandrotationalcrystalgrowthofquartzthinfilms AT beatriznoheda spheruliticandrotationalcrystalgrowthofquartzthinfilms AT vaclavocelik spheruliticandrotationalcrystalgrowthofquartzthinfilms
_version_	1718381871174254592

Spherulitic and rotational crystal growth of Quartz thin films

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