Hybrid antireflective coating with plasma-etched nanostructure

Schulz, Ulrike; Munzert, Peter; Rickelt, Friedrich; Kaiser, Norbert

doi:10.1016/j.tsf.2012.11.153

Cited by 14 publications

(6 citation statements)

References 20 publications

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“…In another study by Schulz et al, a dense silica layer and melamine SWSs were deposited via plasma ion–assisted deposition before etching. The resulting hybrid AR coating was capped with silica, which enabled an antireflectance over the wavelength range of 400–800 nm for 0°, 45°, 60°, at about 1% reflectance on average …”

Section: Ar Coatingsmentioning

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 Coatingsmentioning

confidence: 99%

Transparent Surfaces Inspired by Nature

Motamedi

Warkiani

Taylor

2018

Advanced Optical Materials

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“…However, preparation of thin coatings with significant AR properties requires some complicated and/or expensive processes such as vacuum deposition, nanoimprinting, nanoetching, and multistep surface treatments. ,,− Most of the conventional AR coatings are also applicable only to flat surfaces owing to the requirement of nanometer-level thickness control of the AR layers. AR coatings for plastic substrates are more restricted than those for inorganic substrates because organic polymers exhibit low heat resistance, easy deformation, and low adhesion for inorganic low- n materials such as silica-based coatings.…”

Section: Introductionmentioning

confidence: 99%

Versatile Antireflection Coating for Plastics: Partial Embedding of Mesoporous Silica Nanoparticles onto Substrate Surface

Mizoshita

Tanaka

2016

ACS Appl. Mater. Interfaces

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Antireflection (AR) coating for transparent plastic substrates is constructed by partially embedding mesoporous silica nanoparticles (MSNs) onto the surface of the substrates. Simulation of optical properties of polymer substrates coated with a single-particle MSN layer indicates that the surface has a low and graded refractive index in the direction of the thickness and effectively decreases the reflectance of visible light. The MSN-coated surfaces can be prepared by exposure of the MSN-painted substrates to a solvent vapor, irrespective of the shape of the polymer substrates. The plastic substrates with a single-particle layer of MSNs with diameters of 145-165 nm exhibit high transparency and good AR behavior as simulated. The mesoporous structures of MSNs play important roles not only in decreasing the refractive index but also in strengthening the adhesion between MSNs and substrate surfaces. Moreover, fixation of MSNs onto a thermosetting epoxy resin is successfully achieved by transfer of a single layer of MSNs from flexible films for which MSNs are weakly bonded. The present simple AR coating is applicable to a wide range of substrates with various materials and shapes, and useful for various applications such as optical devices, displays, and solar cells.

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“…There are many production techniques to fabricate biomimetic micro-nano structures, including nano-sphere lithography, laser-interference lithography, decal transfer lithography, nanoimprinting lithography, and plasma etching, which are used on various substrates such as glass, silicon, polymers, etc. [19][20][21][22][23][24][25][26] Nanostructured polymeric materials in particular, are attracting interest due to their wide usage in biomolecular sensing, optics and optoelectronic applications. [27][28][29][30] In order to produce polymer nanostructures, hot embossing through a mold is applied in the pre-mentioned fabrication techniques.…”

Section: Introductionmentioning

confidence: 99%

Soft biomimetic tapered nanostructures for large-area antireflective surfaces and SERS sensing

et al. 2013

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We report a facile fabrication method for the fabrication of functional large area nanostructured polymer films using a drop casting technique. Reusable and tapered silicon molds were utilized in the production of functional polymers providing rapid fabrication of the paraboloid nanostructures at the desired structural heights without the requirement of any complex production conditions, such as high temperature or pressure. The fabricated polymer films demonstrate promising qualities in terms of antireflective, hydrophobic and surface enhanced Raman spectroscopy (SERS) features. We achieved up to 92% transmission from the single-side nanostructured polymer films by implementing optimized nanostructure parameters which were determined using a finite difference time domain (FDTD) method prior to production. Large-area nanostructured films were observed to enhance the Raman signal with an enhancement factor of 4.9 Â 10 6 compared to bare film, making them potentially suitable as freestanding SERS substrates. The utilized fabrication method with its demonstrated performances and reliable material properties, paves the way for further possibilities in biological, optical, and electronic applications.

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Hybrid antireflective coating with plasma-etched nanostructure

Cited by 14 publications

References 20 publications

Transparent Surfaces Inspired by Nature

Transparent Surfaces Inspired by Nature

Versatile Antireflection Coating for Plastics: Partial Embedding of Mesoporous Silica Nanoparticles onto Substrate Surface

Soft biomimetic tapered nanostructures for large-area antireflective surfaces and SERS sensing

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