Hydrophobic and oleophobic anti-reflective polyacrylate coatings

Joki-Korpela, Fatima; Karvinen, Jennika; Päivänranta, Birgit; Partanen, Anni; Suvanto, Mika; Kuittinen, Markku; Pakkanen, Tuula T.

doi:10.1016/j.mee.2013.09.010

Cited by 13 publications

(3 citation statements)

References 48 publications

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“…They tested this property by measuring the CA of oily water which contained surfactant . Joki‐Korpela et al reported UV curable polyacrylate antireflective structure replicated on PMMA which also proved to have water and oil‐repellent properties by measuring water and oleic acid CA on the coating …”

Section: Ar Coatings In a Multifunctional Worldmentioning

confidence: 99%

Transparent Surfaces Inspired by Nature

Motamedi

Warkiani

Taylor

2018

Advanced Optical Materials

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Nature has long inspired scientists and engineers. As one ubiquitous example of this, nature has provided all with several clever methods to absorb, repel, and/or allow both sunlight and water to pass through surfaces. Moth's eyes (highly antireflective) and lotus leaves (highly hydrophobic and self‐cleaning) represent durable natural surfaces which exhibit nearly ideal physical and optical properties. Man‐made transparent surfaces must also be able to cope with water and dust while reaching the maximum possible light transmission for solar collectors, displays, and other optical devices. To explore the link between these – particularly for transparent surfaces – this review puts the physics, progress, and limitations of synthetic materials in context with natural materials. This perspective reveals that there is still much more to learn (and implement) if it is hoped to match the multifunctionality and resilience of natural materials.

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Section: Ar Coatings In a Multifunctional Worldmentioning

confidence: 99%

Transparent Surfaces Inspired by Nature

Motamedi

Warkiani

Taylor

2018

Advanced Optical Materials

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“…Despite the great advance in the fabrication of AR coatings, most approaches require high-temperature treatment to achieve the coatings exhibiting AR characteristics, which are not suitable for polymer substrates or heat sensitive ones. Table summaries the fabrication of AR coatings using different processes without post heat treatment, including chemical/plasma etching and chemical vapor deposition. ,,,,− As can be seen, the AR coatings prepared by using LbL assembly can achieve maximum transmission over 98%. While there are several studies reporting the LbL deposition of AR coatings on polymer substrates without high-temperature treatment, ,− most studies reported the utilization of mesoporous nanoparticles for fabricating conformal AR coatings. ,, In contrast, Cohen and co-worker reported the preparation of LbL assembled films containing silica hollow nanoparticles to obtain AR coatings on poly(methyl methacrylate) (PMMA) substrate .…”

Section: Introductionmentioning

confidence: 99%

Biomimetic Synthesis of Antireflective Silica/Polymer Composite Coatings Comprising Vesicular Nanostructures

Lin

Hsu

Lee

et al. 2016

ACS Appl. Mater. Interfaces

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Antireflective (AR) silica/polymer composite coatings on glass and poly(methyl methacrylate) (PMMA) substrates were prepared by silica mineralization of layer-by-layer (LbL) assembled films composed of polystyrene-block-poly(l-lysine)/poly(l-glutamic acid) (PS-b-PLL/PGA) complex vesicles without any post-treatments. PS-b-PLL AB and AB block copolymers with appropriate block ratio can self-assemble to form vesicles, which can be deposited onto substrates without dissociation. Silica deposition specifically onto the complex vesicles in the multilayer films through amine-catalyzed polycondensation results in the continuous, intact composite coatings comprising vesicular nanostructures, which provided an additional parameter for tuning their optical properties. The film thickness and porosity are mainly dictated by the bilayer number and the degree of deformation/fission of vesicles upon complexation and mineralization, depending on polymer composition. The coated PMMA substrate with maximum transmission over 98% can be achieved at the optimized wavelength region. The AR composite films were mechanically stable to withstand both the wipe and adhesion tests due to the preparation of continuous, intact films. This study demonstrated that the concept of preparing composite films comprising vesicular nanostructures through the combination of LbL assembly and biomineralization is feasible.

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“…Especially, needs for AR property of plastic substrate have been increasing for the rapid growth of flexible electronic fields. Many research groups have already investigated various AR techniques such as single or multi-layer coating, surface texturization, and fabricating the periodic nanostructures [2]. AR nanostructure, so-called moth-eye structure, can efficiently reduce the light reflectance attributed to the gradual change in refractive index between the air and substrate by altering the volume fraction of structures, which in turn reduce Fresnel reflection [3].…”

Section: Introductionmentioning

confidence: 99%

Resist-free antireflective nanostructured film fabricated by thermal-NIL

et al. 2014

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Resist-free antireflective (AR) nanostructured films are directly fabricated on polycarbonate (PC) film using thermal-nanoimprint lithography (T-NIL) and the moth-eye shape of AR nanostructure is elaborately optimized with different oxygen reactive ion etching conditions. Anodic aluminum oxide (AAO) templates are directly used as master molds of T-NIL for preparation of AR nanostructures on PC film without an additional T-NIL resist. AR nanostructures are well arranged with a period of about 200 nm and diameter of about 150 nm, which corresponds to those of the AAO template mold. The moth-eye AR nanostructures exhibit the average reflectance of 2% in wavelength range from 400 to 800 nm. From the results, highly enhanced AR properties with simple direct imprinting on PC film demonstrate the potential for panel application in the field of flat display, touch screen, and solar cells.

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Hydrophobic and oleophobic anti-reflective polyacrylate coatings

Cited by 13 publications

References 48 publications

Transparent Surfaces Inspired by Nature

Transparent Surfaces Inspired by Nature

Biomimetic Synthesis of Antireflective Silica/Polymer Composite Coatings Comprising Vesicular Nanostructures

Resist-free antireflective nanostructured film fabricated by thermal-NIL

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