Simple Fabrication of Asymmetric High-Aspect-Ratio Polymer Nanopillars by Reusable AAO Templates

Choi, Moon Kee; Yoon, Hyunsik; Lee, Kyung‐Hee; Shin, Kyusoon

doi:10.1021/la104839a

Cited by 58 publications

(75 citation statements)

References 60 publications

(74 reference statements)

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“…To further reduce the pore size below 100 nm, a PFPE mould with nano-pillars of B50 nm diameter was replicated from the surface-treated anodic aluminium oxide template 43 . Following the same procedure with the PUA resin along with the PFPE upper and lower moulds, a membrane with three-level pores (50 nm/800 nm/50 mm) was obtained (Fig.…”

Section: Resultsmentioning

confidence: 99%

Replication of flexible polymer membranes with geometry-controllable nano-apertures via a hierarchical mould-based dewetting

et al. 2014

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Membranes with nano-apertures are versatile templates that possess a wide range of electronic, optical and biomedical applications. However, such membranes have been limited to silicon-based inorganic materials to utilize standard semiconductor processes. Here we report a new type of flexible and free-standing polymeric membrane with nano-apertures by exploiting high-wettability difference and geometrical reinforcement via multiscale, multilevel architecture. In the method, polymeric membranes with various pore sizes (50-800 nm) and shapes (dots, lines) are fabricated by a hierarchical mould-based dewetting of ultravioletcurable resins. In particular, the nano-pores are monolithically integrated on a two-level hierarchical supporting layer, allowing for the rapid (o5 min) and robust formation of multiscale and multilevel nano-apertures over large areas (2 Â 2 cm 2 ).

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Section: Resultsmentioning

confidence: 99%

Replication of flexible polymer membranes with geometry-controllable nano-apertures via a hierarchical mould-based dewetting

et al. 2014

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“…Similar structures can be produced in polymer micro-and nanostructures by treating one side of the features to shorten them. Both electron beam irradiation 93 and metal deposition 94 have been shown to produce similar features [ Fig. 4(b)].…”

Section: Maintaining An Air Layer Underwater (Plastrons)mentioning

confidence: 92%

The superhydrophobicity of polymer surfaces: Recent developments

Shirtcliffe

McHale

Newton

2011

J Polym Sci B Polym Phys

165

108

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Superhydrophobicity is the extreme water repellence of highly textured surfaces. The field of superhydrophobicity research has reached a stage where huge numbers of candidate treatments have been proposed and jumps have been made in theoretically describing them. There now seems to be a move to more practical concerns and to considering the demands of individual applications instead of more general cases. With these developments, polymeric surfaces with their huge variety of properties have come to the fore and are fast becoming the material of choice for designing, developing, and producing superhydrophobic surfaces.

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“…In a standard procedure, target precursors or materials (e.g. carbon, 251 titania, 252 hematite (Fe 3 O 4 ), 253 perovskite PbBi 2 Nb 2 O 9 (PBON), 254 metal, 255 or polymer 256 ) are deposited inside the AAO arrays. The template is then removed to form nanotube or nanorod structures.…”

Section: Hard-templatesmentioning

confidence: 99%