Growth of ZnO hemispheres on silicon by a hydrothermal method

Young Seok Lee; Sung Nam Lee; Il Kyu Park

doi:10.1016/j.ceramint.2012.09.083

Growth of ZnO hemispheres on silicon by a hydrothermal method

Young Seok Lee
, Sung Nam Lee
, Il Kyu Park

Dept. of Materials Science & Engineering

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

This paper reports a hydrothermal method to control the morphology of hemisphere ZnO nanostructures (NSs) fabricated on a Si substrate by using surfactant additive molecules. The shape of ZnO NSs was controlled by the concentration of the trisodium citrate (TSC) added during the main growth step. With increasing the TSC concentration from 0 to 1.3 and 2.6 mM, the shape of ZnO NSs changed from a bundle of nanorods to a flower-like-shape composed of merged large hexagonal crystals, and finally to ZnO hemispheres. X-ray diffraction and photoluminescence spectroscopy revealed that the ZnO NSs had a wurtzite crystalline structure. The shape evolution mechanism of ZnO NSs could be explained using the surfactant-mediated growth model.

Original language	English
Pages (from-to)	3043-3048
Number of pages	6
Journal	Ceramics International
Volume	39
Issue number	3
DOIs	https://doi.org/10.1016/j.ceramint.2012.09.083
State	Published - Apr 2013

Keywords

D. ZnO
Hemisphere
Hydrothermal method
Surfactant

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10.1016/j.ceramint.2012.09.083

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title = "Growth of ZnO hemispheres on silicon by a hydrothermal method",

abstract = "This paper reports a hydrothermal method to control the morphology of hemisphere ZnO nanostructures (NSs) fabricated on a Si substrate by using surfactant additive molecules. The shape of ZnO NSs was controlled by the concentration of the trisodium citrate (TSC) added during the main growth step. With increasing the TSC concentration from 0 to 1.3 and 2.6 mM, the shape of ZnO NSs changed from a bundle of nanorods to a flower-like-shape composed of merged large hexagonal crystals, and finally to ZnO hemispheres. X-ray diffraction and photoluminescence spectroscopy revealed that the ZnO NSs had a wurtzite crystalline structure. The shape evolution mechanism of ZnO NSs could be explained using the surfactant-mediated growth model.",

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AU - Lee, Sung Nam

AU - Park, Il Kyu

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N2 - This paper reports a hydrothermal method to control the morphology of hemisphere ZnO nanostructures (NSs) fabricated on a Si substrate by using surfactant additive molecules. The shape of ZnO NSs was controlled by the concentration of the trisodium citrate (TSC) added during the main growth step. With increasing the TSC concentration from 0 to 1.3 and 2.6 mM, the shape of ZnO NSs changed from a bundle of nanorods to a flower-like-shape composed of merged large hexagonal crystals, and finally to ZnO hemispheres. X-ray diffraction and photoluminescence spectroscopy revealed that the ZnO NSs had a wurtzite crystalline structure. The shape evolution mechanism of ZnO NSs could be explained using the surfactant-mediated growth model.

AB - This paper reports a hydrothermal method to control the morphology of hemisphere ZnO nanostructures (NSs) fabricated on a Si substrate by using surfactant additive molecules. The shape of ZnO NSs was controlled by the concentration of the trisodium citrate (TSC) added during the main growth step. With increasing the TSC concentration from 0 to 1.3 and 2.6 mM, the shape of ZnO NSs changed from a bundle of nanorods to a flower-like-shape composed of merged large hexagonal crystals, and finally to ZnO hemispheres. X-ray diffraction and photoluminescence spectroscopy revealed that the ZnO NSs had a wurtzite crystalline structure. The shape evolution mechanism of ZnO NSs could be explained using the surfactant-mediated growth model.

KW - D. ZnO

KW - Hemisphere

KW - Hydrothermal method

KW - Surfactant

UR - https://www.scopus.com/pages/publications/84872908864

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DO - 10.1016/j.ceramint.2012.09.083

M3 - Article

AN - SCOPUS:84872908864

SN - 0272-8842

VL - 39

SP - 3043

EP - 3048

JO - Ceramics International

JF - Ceramics International

IS - 3

ER -

Growth of ZnO hemispheres on silicon by a hydrothermal method

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Keywords

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