Constrained, aqueous growth of three-dimensional single crystalline zinc oxide structures

Constrained, aqueous growth of three-dimensional single crystalline zinc oxide structures

We study low temperature (90 °C) aqueous growth of single crystal zinc oxide structures through patterned PMMA molds of different sizes, shapes, and orientations. We demonstrate the ability to create 3D shapes with smooth vertical sidewalls. Although the unconstrained growth is influenced by the hex...

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Bibliographic Details
Main Authors: Kathryn J. Pooley, John H. Joo, Evelyn L. Hu
Format: Article
Language:English
Published: AIP Publishing LLC 2014-01-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/1.4863075
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spelling doaj-73df734ebabb44c1a41ddcad9b8e150a2020-11-25T02:44:56ZengAIP Publishing LLCAPL Materials2166-532X2014-01-0121012111012111-610.1063/1.4863075014401APMConstrained, aqueous growth of three-dimensional single crystalline zinc oxide structuresKathryn J. Pooley0John H. Joo1Evelyn L. Hu2School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USASchool of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USASchool of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USAWe study low temperature (90 °C) aqueous growth of single crystal zinc oxide structures through patterned PMMA molds of different sizes, shapes, and orientations. We demonstrate the ability to create 3D shapes with smooth vertical sidewalls. Although the unconstrained growth is influenced by the hexagonal geometry of the underlying crystal structure, the ZnO is shown to conform exactly to any shape patterned. Using electron backscatter diffraction and scanning electron microscopy we show that the mold orientation, in conjunction with control of the growth rates of the c and m planes of the ZnO, is crucial in determining the final structure shape.http://dx.doi.org/10.1063/1.4863075
collection DOAJ
language English
format Article
sources DOAJ
author Kathryn J. Pooley
John H. Joo
Evelyn L. Hu
spellingShingle Kathryn J. Pooley
John H. Joo
Evelyn L. Hu
Constrained, aqueous growth of three-dimensional single crystalline zinc oxide structures
APL Materials
author_facet Kathryn J. Pooley
John H. Joo
Evelyn L. Hu
author_sort Kathryn J. Pooley
title Constrained, aqueous growth of three-dimensional single crystalline zinc oxide structures
title_short Constrained, aqueous growth of three-dimensional single crystalline zinc oxide structures
title_full Constrained, aqueous growth of three-dimensional single crystalline zinc oxide structures
title_fullStr Constrained, aqueous growth of three-dimensional single crystalline zinc oxide structures
title_full_unstemmed Constrained, aqueous growth of three-dimensional single crystalline zinc oxide structures
title_sort constrained, aqueous growth of three-dimensional single crystalline zinc oxide structures
publisher AIP Publishing LLC
series APL Materials
issn 2166-532X
publishDate 2014-01-01
description We study low temperature (90 °C) aqueous growth of single crystal zinc oxide structures through patterned PMMA molds of different sizes, shapes, and orientations. We demonstrate the ability to create 3D shapes with smooth vertical sidewalls. Although the unconstrained growth is influenced by the hexagonal geometry of the underlying crystal structure, the ZnO is shown to conform exactly to any shape patterned. Using electron backscatter diffraction and scanning electron microscopy we show that the mold orientation, in conjunction with control of the growth rates of the c and m planes of the ZnO, is crucial in determining the final structure shape.
url http://dx.doi.org/10.1063/1.4863075
work_keys_str_mv AT kathrynjpooley constrainedaqueousgrowthofthreedimensionalsinglecrystallinezincoxidestructures
AT johnhjoo constrainedaqueousgrowthofthreedimensionalsinglecrystallinezincoxidestructures
AT evelynlhu constrainedaqueousgrowthofthreedimensionalsinglecrystallinezincoxidestructures
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