A little ribbing: Flux starvation engineering for rippled indium tin oxide nanotree branches

Combining vapour-liquid-solid growth with glancing angle deposition (VLS-GLAD) facilitates fabrication of branched nanowires not possible with either technique alone. Indium tin oxide (ITO) nanostructures grown by VLS-GLAD produce extremely porous nanotree structures, where periodic branch diameter...

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Bibliographic Details
Published in:Applied physics letters 2012-11, Vol.101 (19)
Main Authors: Tucker, Ryan T., Beaudry, Allan L., LaForge, Joshua M., Taschuk, Michael T., Brett, Michael J.
Format: Article
Language:English
Subjects:
Flux
Indium tin oxide
Mathematical models
Nanocomposites
Nanomaterials
Nanostructure
Nanowires
Ripples
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Summary:Combining vapour-liquid-solid growth with glancing angle deposition (VLS-GLAD) facilitates fabrication of branched nanowires not possible with either technique alone. Indium tin oxide (ITO) nanostructures grown by VLS-GLAD produce extremely porous nanotree structures, where periodic branch diameter oscillations are sometimes observed. We explain this rippled branch growth with a simple model linking the physics governing branch growth to the process variables controlled in VLS-GLAD. The model is verified by inducing specific, aperiodic ripples onto growing ITO branches through macroscopic vapour flux control and manipulation of local shadowing.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4764508