Simple, Large-Scale Patterning of Hydrophobic ZnO Nanorod Arrays

Title
Simple, Large-Scale Patterning of Hydrophobic ZnO Nanorod Arrays
Authors
김성빈이원우이재석박원일김진상William T. Nichols
Keywords
ZnO nanorods; hydrothermal; nanosphere lithography; hydrophobic
Issue Date
2012-08
Publisher
ACS Applied Materials & Interfaces
Citation
VOL 4, NO 8, 3910-3915
Abstract
Here we describe a simple, versatile technique to produce large-scale arrays of highly ordered ZnO nanorods. Patterning of three distinct ZnO crystal morphologies is demonstrated through use of different ZnO seed layers. Array formation is accomplished through a simple variation on nanosphere lithography that imprints a thickness variation across a PMMA mask layer. The area of exposed seed layer is controlled through etching time in an oxygen plasma. Subsequent hydrothermal growth from the patterned seed layer produces high-quality ZnO crystals in uniform arrays. The high uniformity of the patterned array is shown to induce a high contact angle hydrophobic state even without the need for chemical modification of the ZnO surface. This technique provides a straightforward way to integrate the optical and electrical properties of high-quality ZnO nanorods with the tunable fluidic properties at the surface of well-ordered arrays.
URI
http://pubs.kist.re.kr/handle/201004/43023
ISSN
19448244
Appears in Collections:
KIST Publication > Article
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