Biomimetic Moth-eye Anti-reflective Poly-(methyl methacrylate) Nanostructural Coating

Xü, Hongbo; Gong, Liuting; Zhang, Shoucai; Ma, Renping; Pan, Liqing; Zhao, Jiupeng; Li, Yao

doi:10.1007/s42235-019-0115-3

Cited by 9 publications

(6 citation statements)

References 36 publications

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“…The results introduced a much higher transmittance and low reflectance of nanostructure substrates than the original one. This was due to the regular truncated cone-shaped nanopillars on the surface, which were inspired by the motheye structure [44][45][46]. Such nanostructure acted as a layer with a gradient decreasing of refraction index, causing light to 'bend' as it passes through the layer of structure, preventing light from being suddenly reflected at the interface, therefore increasing the transmittance and hindering the reflectance [36,44,[47][48][49].…”

Section: Resultsmentioning

confidence: 99%

Transparency and icephobicity of moth eye-inspired tailored omniphobic surface

Nguyen

2022

Surface Engineering

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In this work, we presented a facile method to introduce a transparent and anti-icing omniphobic surface fabricated on the glass substrate. The uniform moth eye-inspired structure was generated by the Deep Reactive Ion Etching method and followed by an additional wet etching step to enhance the sharpness of the nanostructure. A hydrophobe compound was assembled on the rough substrate by chemical vapor coating to achieve remarkable liquid-repellent properties. The tensile strength test was conducted using a designed apparatus to evaluate the anti-icing performance of functional surfaces compared to the as-received one. In addition, the optical performance in terms of transmittance and reflectance also was tested and revealed significant optical enhancement owing to the unique design of nanoarrays. The results demonstrated the great potential and proposed design for multifunctional surfaces.

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Section: Resultsmentioning

confidence: 99%

Transparency and icephobicity of moth eye-inspired tailored omniphobic surface

Nguyen

2022

Surface Engineering

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“…R2R UV-NIL was used by Burghoorn et al in [115] to create moth-eye structures in OrmoComp ® on foils. Hot embossing was used in [116] to prepare antireflection structures in PMMA.…”

Section: Antireflection Structuresmentioning

confidence: 99%

Nanoimprinting of Biomimetic Nanostructures

Mühlberger

2022

Nanomanufacturing

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Biomimetic micro- and nano- structures have attracted considerable interest over the last decades for various applications ranging from optics to life sciences. The complex nature of the structures, however, presents significant challenges for fabrication and their application in real-life settings. Nanoimprint lithography could provide an interesting opportunity in this respect. This article seeks to provide an overview of what has already been achieved using nanoscale replication technologies in the field of biomimetics and will aim to highlight opportunities and challenges for nanoimprinting in this respect in order to inspire new research.

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“…By continuously feeding the system with small portions of the solvent vapor, an ordered structure mimicking the moth-eye was developed. Unlike the moth-eye structures created through reactive ion etching, − the bottom-up strategy shown in this work offers a way of producing moth-eye structures in a simple and cost-effective way. Kinetic solvent annealing (KSA) is used to promote the rearrangement of the randomly distributed PS- b -P2VP micelles into arrays of vertical protuberances.…”

Section: Introductionmentioning

confidence: 99%

Nonequilibrium Self-Assembly of Ultrahigh-Molecular-Weight Block Copolymers into an Asymmetric Nanostructure

Hnatchuk

Hathaway

Cui

et al. 2022

ACS Appl. Polym. Mater.

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Self-assembly of block copolymers (BCPs) provides a unique platform for producing periodic and orderly structured soft materials of nanometer scale. The kinetics of the assembly process defines the accessible range of morphologies and allows for the formation of asymmetric hierarchies. Here, self-assembly of ultrahigh-molecular-weight BCPs with relatively slow molecular chain dynamics is used to fabricate a metastable asymmetric structure. More specifically, a kinetically trapped solvent vapor annealing process is applied to poly(styrene-block-2-vinylpyridine) thin films, wherein the concentration ratio of trichloroethylene to tetrahydrofuran of the mixed solvent vapor gradually increases throughout the annealing process, pushing the system away from equilibrium. Under such a dynamic process, poly(styrene-block-2-vinylpyridine) micelles rearrange into vertical protuberances that mimic moth-eye structures enhancing the light transmission. Sequential infiltration synthesis is used to convert the poly-2-vinylpyridine domain into alumina in order to verify the formation mechanism of the asymmetric protuberances. It is determined that vertically packed and merged micelles are only formed under a gradually built solvent vapor environment.

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Biomimetic Moth-eye Anti-reflective Poly-(methyl methacrylate) Nanostructural Coating

Cited by 9 publications

References 36 publications

Transparency and icephobicity of moth eye-inspired tailored omniphobic surface

Transparency and icephobicity of moth eye-inspired tailored omniphobic surface

Nanoimprinting of Biomimetic Nanostructures

Nonequilibrium Self-Assembly of Ultrahigh-Molecular-Weight Block Copolymers into an Asymmetric Nanostructure

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