Solid Conical Cap-closing Hollow Tube Growth by Axial Screw Dislocations

Abstract Exploration of the mechanisms for growth of the nanostructures is the key point to achieve nanomaterial syntheses with precisely controlled morphology and structure. Herein, we reported a new mechanism that realized the growth of solid conical cap-closing hollow tube by axial screw dislocat...

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Autores principales:	Yanhui Chu, Jinjin Li, Jikun Chen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0ed9b800ec9d49d79733d96ebb60cec0
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spelling	oai:doaj.org-article:0ed9b800ec9d49d79733d96ebb60cec02021-12-02T16:05:59ZSolid Conical Cap-closing Hollow Tube Growth by Axial Screw Dislocations10.1038/s41598-017-03109-w2045-2322https://doaj.org/article/0ed9b800ec9d49d79733d96ebb60cec02017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03109-whttps://doaj.org/toc/2045-2322Abstract Exploration of the mechanisms for growth of the nanostructures is the key point to achieve nanomaterial syntheses with precisely controlled morphology and structure. Herein, we reported a new mechanism that realized the growth of solid conical cap-closing hollow tube by axial screw dislocations in the formation α-Al2O3 nanowires. A hollow tube was firstly grown by axial screw dislocations in the formation α-Al2O3 nanowires through vapor-phase synthesis. Afterwards, the hollow tube was closed up by generating a solid conical cap with axial screw dislocations based on the competition between the surface energy and the strain energy of screw dislocation controlled by the growth environment. The solid conical cap-closing hollow tube growth model based on the axial screw dislocations is expected to be a general growth mechanism for nanowires within low supersaturation. This study enriches the fundamental understanding with respective to the kinetics of nanostructured crystal growth and provides guidance to the precise structure control in nanosynthesis and manufacturing.Yanhui ChuJinjin LiJikun ChenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yanhui Chu Jinjin Li Jikun Chen Solid Conical Cap-closing Hollow Tube Growth by Axial Screw Dislocations
description	Abstract Exploration of the mechanisms for growth of the nanostructures is the key point to achieve nanomaterial syntheses with precisely controlled morphology and structure. Herein, we reported a new mechanism that realized the growth of solid conical cap-closing hollow tube by axial screw dislocations in the formation α-Al2O3 nanowires. A hollow tube was firstly grown by axial screw dislocations in the formation α-Al2O3 nanowires through vapor-phase synthesis. Afterwards, the hollow tube was closed up by generating a solid conical cap with axial screw dislocations based on the competition between the surface energy and the strain energy of screw dislocation controlled by the growth environment. The solid conical cap-closing hollow tube growth model based on the axial screw dislocations is expected to be a general growth mechanism for nanowires within low supersaturation. This study enriches the fundamental understanding with respective to the kinetics of nanostructured crystal growth and provides guidance to the precise structure control in nanosynthesis and manufacturing.
format	article
author	Yanhui Chu Jinjin Li Jikun Chen
author_facet	Yanhui Chu Jinjin Li Jikun Chen
author_sort	Yanhui Chu
title	Solid Conical Cap-closing Hollow Tube Growth by Axial Screw Dislocations
title_short	Solid Conical Cap-closing Hollow Tube Growth by Axial Screw Dislocations
title_full	Solid Conical Cap-closing Hollow Tube Growth by Axial Screw Dislocations
title_fullStr	Solid Conical Cap-closing Hollow Tube Growth by Axial Screw Dislocations
title_full_unstemmed	Solid Conical Cap-closing Hollow Tube Growth by Axial Screw Dislocations
title_sort	solid conical cap-closing hollow tube growth by axial screw dislocations
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/0ed9b800ec9d49d79733d96ebb60cec0
work_keys_str_mv	AT yanhuichu solidconicalcapclosinghollowtubegrowthbyaxialscrewdislocations AT jinjinli solidconicalcapclosinghollowtubegrowthbyaxialscrewdislocations AT jikunchen solidconicalcapclosinghollowtubegrowthbyaxialscrewdislocations
_version_	1718385129366224896

Solid Conical Cap-closing Hollow Tube Growth by Axial Screw Dislocations

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