Vibrational Order, Structural Properties, and Optical Gap of ZnO Nanostructures Sintered through Thermal Decomposition

The sintering of different ZnO nanostructures by the thermal decomposition of zinc acetate is reported. Morphological changes from nanorods to nanoparticles are exhibited with the increase of the decomposition temperature from 300 to 500°C. The material showed a loss in the crystalline order with th...

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Main Authors:	Alejandra Londono-Calderon, Fernando F. Jurado-Lasso, Juan D. Romero-Salazar, Nathaly Jurado-Lasso, J. Fabian Jurado
Format:	Article
Language:	English
Published:	Hindawi Limited 2014-01-01
Series:	Journal of Nanomaterials
Online Access:	http://dx.doi.org/10.1155/2014/340384

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spelling	doaj-0432c1da5e2443908d22feab4fae5b972020-11-24T23:37:58ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292014-01-01201410.1155/2014/340384340384Vibrational Order, Structural Properties, and Optical Gap of ZnO Nanostructures Sintered through Thermal DecompositionAlejandra Londono-Calderon0Fernando F. Jurado-Lasso1Juan D. Romero-Salazar2Nathaly Jurado-Lasso3J. Fabian Jurado4Laboratorio de Propiedades Térmicas Dieléctricas de Compositos, Departamento de Física y Química, Universidad Nacional de Colombia, A.A. 127, Manizales, ColombiaLaboratorio de Propiedades Térmicas Dieléctricas de Compositos, Departamento de Física y Química, Universidad Nacional de Colombia, A.A. 127, Manizales, ColombiaLaboratorio de Propiedades Térmicas Dieléctricas de Compositos, Departamento de Física y Química, Universidad Nacional de Colombia, A.A. 127, Manizales, ColombiaLaboratorio de Propiedades Térmicas Dieléctricas de Compositos, Departamento de Física y Química, Universidad Nacional de Colombia, A.A. 127, Manizales, ColombiaLaboratorio de Propiedades Térmicas Dieléctricas de Compositos, Departamento de Física y Química, Universidad Nacional de Colombia, A.A. 127, Manizales, ColombiaThe sintering of different ZnO nanostructures by the thermal decomposition of zinc acetate is reported. Morphological changes from nanorods to nanoparticles are exhibited with the increase of the decomposition temperature from 300 to 500°C. The material showed a loss in the crystalline order with the increase in the temperature, which is correlated to the loss of oxygen due to the low heating rate used. Nanoparticles have a greater vibrational freedom than nanorods which is demonstrated in the rise of the main Raman mode E 2(high) during the transformation. The energy band gap of the nanostructured material is lower than the ZnO bulk material and decreases with the rise in the temperature.http://dx.doi.org/10.1155/2014/340384
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Alejandra Londono-Calderon Fernando F. Jurado-Lasso Juan D. Romero-Salazar Nathaly Jurado-Lasso J. Fabian Jurado
spellingShingle	Alejandra Londono-Calderon Fernando F. Jurado-Lasso Juan D. Romero-Salazar Nathaly Jurado-Lasso J. Fabian Jurado Vibrational Order, Structural Properties, and Optical Gap of ZnO Nanostructures Sintered through Thermal Decomposition Journal of Nanomaterials
author_facet	Alejandra Londono-Calderon Fernando F. Jurado-Lasso Juan D. Romero-Salazar Nathaly Jurado-Lasso J. Fabian Jurado
author_sort	Alejandra Londono-Calderon
title	Vibrational Order, Structural Properties, and Optical Gap of ZnO Nanostructures Sintered through Thermal Decomposition
title_short	Vibrational Order, Structural Properties, and Optical Gap of ZnO Nanostructures Sintered through Thermal Decomposition
title_full	Vibrational Order, Structural Properties, and Optical Gap of ZnO Nanostructures Sintered through Thermal Decomposition
title_fullStr	Vibrational Order, Structural Properties, and Optical Gap of ZnO Nanostructures Sintered through Thermal Decomposition
title_full_unstemmed	Vibrational Order, Structural Properties, and Optical Gap of ZnO Nanostructures Sintered through Thermal Decomposition
title_sort	vibrational order, structural properties, and optical gap of zno nanostructures sintered through thermal decomposition
publisher	Hindawi Limited
series	Journal of Nanomaterials
issn	1687-4110 1687-4129
publishDate	2014-01-01
description	The sintering of different ZnO nanostructures by the thermal decomposition of zinc acetate is reported. Morphological changes from nanorods to nanoparticles are exhibited with the increase of the decomposition temperature from 300 to 500°C. The material showed a loss in the crystalline order with the increase in the temperature, which is correlated to the loss of oxygen due to the low heating rate used. Nanoparticles have a greater vibrational freedom than nanorods which is demonstrated in the rise of the main Raman mode E 2(high) during the transformation. The energy band gap of the nanostructured material is lower than the ZnO bulk material and decreases with the rise in the temperature.
url	http://dx.doi.org/10.1155/2014/340384
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Vibrational Order, Structural Properties, and Optical Gap of ZnO Nanostructures Sintered through Thermal Decomposition

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