Simple, Large-Scale Patterning of Hydrophobic ZnO Nanorod Arrays
- Authors
- Kim, Seong Been; Lee, Won Woo; Yi, Jaeseok; Park, Won Il; Kim, Jin-Sang; Nichols, William T.
- Issue Date
- Aug-2012
- Publisher
- AMER CHEMICAL SOC
- Keywords
- ZnO nanorods; hydrothermal; nanosphere lithography; hydrophobic
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.4, no.8, pp.3910 - 3915
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 4
- Number
- 8
- Start Page
- 3910
- End Page
- 3915
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/164982
- DOI
- 10.1021/am3007142
- ISSN
- 1944-8244
- 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.
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