Noniridescent Biomimetic Photonic Microdomes by Inkjet Printing

Shanker, Ravi; Sardar, Samim; Chen, Shangzhi; Gamage, Sampath; Rossi, Stefano; Jonsson, Magnus P.

doi:10.1021/acs.nanolett.0c02604

Cited by 41 publications

(35 citation statements)

References 42 publications

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“…Reflectance spectra of the devices were recorded by a custom‐made micro‐spectroscopy setup. [ 23 ] In brief, samples were illuminated by a 50 W halogen lamp attached to an optical microscope (Nikon Eclipse L200 N, Japan) and the reflected light was split into two parts at the camera port, one for optical microscopy imaging and the other for capturing spectra via an optical fiber (with a diameter of 100 µm) connected to a spectrometer (QePRO, Ocean Optics, USA). For all measurements, an objective lens of 10× magnification was used.…”

Section: Methodsmentioning

confidence: 99%

Tunable Structural Color Images by UV‐Patterned Conducting Polymer Nanofilms on Metal Surfaces

et al. 2021

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Precise manipulation of light–matter interactions has enabled a wide variety of approaches to create bright and vivid structural colors. Techniques utilizing photonic crystals, Fabry–Pérot cavities, plasmonics, or high‐refractive‐index dielectric metasurfaces have been studied for applications ranging from optical coatings to reflective displays. However, complicated fabrication procedures for sub‐wavelength nanostructures, limited active areas, and inherent absence of tunability of these approaches impede their further development toward flexible, large‐scale, and switchable devices compatible with facile and cost‐effective production. Here, a novel method is presented to generate structural color images based on monochromic conducting polymer films prepared on metallic surfaces via vapor phase polymerization and ultraviolet (UV) light patterning. Varying the UV dose enables synergistic control of both nanoscale film thickness and polymer permittivity, which generates controllable structural colors from violet to red. Together with grayscale photomasks this enables facile fabrication of high‐resolution structural color images. Dynamic tuning of colored surfaces and images via electrochemical modulation of the polymer redox state is further demonstrated. The simple structure, facile fabrication, wide color gamut, and dynamic color tuning make this concept competitive for applications like multifunctional displays.

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Section: Methodsmentioning

confidence: 99%

Tunable Structural Color Images by UV‐Patterned Conducting Polymer Nanofilms on Metal Surfaces

et al. 2021

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“…Inkjet printing has gained great interest as an environmentally friendly and low‐cost method for direct deposition of functional nanomaterials on flexible substrates. [ 43–45 ] Herein, we propose a heterometallic seed‐mediated strategy to spatially direct Zn nucleation and avoid dendrite growth by inkjet printing silver nanoparticles on 3D conductive skeleton. The essential idea is to utilize the inkjet‐printed Ag nanoparticles as heterometallic seeds to induce uniform Zn nucleation at the initial plating stages.…”

Section: Introductionmentioning

confidence: 99%

Heterometallic Seed‐Mediated Zinc Deposition on Inkjet Printed Silver Nanoparticles Toward Foldable and Heat‐Resistant Zinc Batteries

Chen

Wang

Yang

et al. 2021

Adv Funct Materials

138

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To achieve high performed zinc metal batteries, it is imperative to address the issues of dendrite growth and the side‐reactions occurring at the Zn anode, particularly when the batteries are operated at high current densities and high temperature. Herein, a flexible and dendrite‐free Zn metal anode (AgNPs@CC/Zn), which is prepared by inkjet printing silver nanoparticles on a 3D carbon matrix, is reported. Experimental observations and DFT calculation reveal that the Ag nanoparticles can work as heterometallic seeds for zinc deposition, and thus simultaneously improve the zincophilicity and thermal conductivity of the carbon matrix. This not only lowers the Zn nucleation overpotential and guides the uniform Zn nucleation but also promotes the reversible zinc stripping/plating via AgZn alloying/de‐alloying reactions. As a result, the AgNPs@CC/Zn anode presents low voltage hysteresis of 80 mV and superior cycling over 480 h at a high current density of 10 mA cm−2. The AgNPs@CC/Zn anode can enable full cells with exceptional cyclic stability and enhanced high‐temperature endurance. Furthermore, the foldable pouch cell using the AgNPs@CC/Zn anode exhibits high capacity retention regardless of different deformation status. This work demonstrates the promising potential of inkjet printing technology in developing 3D dendrite‐free zinc anode for foldable and heat‐resistant zinc batteries.

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“…Hydrophobic substrates have water CA of > 65°, exhibiting suitable TCL recession for droplet evaporation, and allow the production of unique colloidal assembly structures [ 141–153 ] ranging from hemispherical PC domes [ 49,50,141–150 ] to responsive PC domes, [ 51 ] PC lines, [ 52 ] and colloidal cluster arrays. [ 53,151,152 ] Typically, hemispherical PC domes were obtained by depositing small droplets patterned by inkjet printing or dispenser machines on hydrophobic substrates.…”

Section: Colloidal Assembly On Substrates With Distinct Wettabilitymentioning

confidence: 99%

Functional Colloidal Assemblies Based on Superwettable Substrates

Zhang

Wang

Jiang

2021

Part & Part Syst Charact

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Colloidal assembly, which finds numerous applications in functional optics, sensing materials, and other fields, is significantly affected by substrate wettability. In particular, the pinning or sliding of the three‐phase contact line (TCL) strongly influences the assembly process and the resultant functional structures. The present review focuses on this influence and provides a reference for effective colloidal assembly guidance to facilitate the related practical applications, covering the continuous and high‐quality colloidal crystals (CCs) fabricated using superhydrophilic substrates, coffee‐ring‐like assemblies produced using hydrophilic substrates, crack‐free and ultranarrow stopband CCs produced using low‐adhesive superhydrophobic substrates, dome‐like aggregates with excellent wide‐view properties obtained using hydrophobic substrates, and multi‐functional patterns assembled using substrates with hydrophilic‐hydrophobic patterns.

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Noniridescent Biomimetic Photonic Microdomes by Inkjet Printing

Cited by 41 publications

References 42 publications

Tunable Structural Color Images by UV‐Patterned Conducting Polymer Nanofilms on Metal Surfaces

Tunable Structural Color Images by UV‐Patterned Conducting Polymer Nanofilms on Metal Surfaces

Heterometallic Seed‐Mediated Zinc Deposition on Inkjet Printed Silver Nanoparticles Toward Foldable and Heat‐Resistant Zinc Batteries

Functional Colloidal Assemblies Based on Superwettable Substrates

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