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

Autor: Kathryn J. Pooley, John H. Joo, Evelyn L. Hu
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: APL Materials, Vol 2, Iss 1, Pp 012111-012111-6 (2014)
Druh dokumentu: article
ISSN: 2166-532X
DOI: 10.1063/1.4863075
Popis: 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.
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