scholarly journals Design and Application Research of All-Dielectric Nanostructure Colorful Display

2019 ◽  
Vol 9 (14) ◽  
pp. 2937
Author(s):  
Shishang Luo ◽  
Junbo Yang ◽  
Xin He ◽  
Sen Zhang ◽  
Ying Chen
Keyword(s):  
Structural Parameters ◽  
Metallic Nanostructures ◽  
Industrial Applications ◽  
Structural Color ◽  
Structural Colors ◽  
Color Displays ◽  
Previous Design ◽  
Color Printing ◽  
Different Color ◽  
Color Filters

Structural colors generated by plasmonic resonances in metallic nanostructures have been intensively studied and exciting progress has been made. However, because of the inherent plasmon damping, the saturation of these colors generated by metallic nanostructures could not meet the needs of industrial applications. As a result, researchers increasingly focus on structural colors generated by all-dielectric nanostructures. In this paper, we discuss a type of all-dielectric nanostructure based on a previous design and analyze its optical properties extensively. The display of character T with different color is realized by using this nanostructure. The study helps the understanding of the influence of structural parameters on structural color and provides some guidance for future experiments. This work can impact the development of the structural color devices which can be applied in color printing, color displays, color filters, imaging, and energy harvesting, etc.

All-dielectric high saturation structural colors with Si3N4 metasurface

2020 ◽  
Vol 34 (14) ◽  
pp. 2050142
Author(s):  
Yunfan Hong ◽  
Yufang Lei ◽  
Xiaoming Fang ◽  
Xingyi Li ◽  
Wenlong Wen ◽  
...  
Keyword(s):  
Incident Angle ◽  
Structural Parameters ◽  
Incident Light ◽  
Research Area ◽  
Structural Color ◽  
Polarization Angle ◽  
Structural Colors ◽  
Environmental Friendly ◽  
Half Height ◽  
Color Displays

Structural colors engineering as a promising research area provides a high-resolution and environmental-friendly sustainable colors implementation. Here, metasurface-based concept was used to design waveguides and gratings of Si3N4 material on silicon dioxide substrates. The shift of reflection peaks can be controlled by structural parameters and efficiencies exceeded 90% with half height and width less than 10 nm. This induced structural color with superior saturation. Moreover, such nanostructures showed good sensitivity to polarization angle and incident angle of incident light. The proposed coloring devices look promising for applications in active color displays, imaging devices, and anti-counterfeiting and so on.

scholarly journals Structural color printing with a dielectric layer coated on a nanotextured metal substrate: simulation and experiment

2019 ◽  
Vol 1 (10) ◽  
pp. 4090-4098
Author(s):  
Minseok Seo ◽  
Heungyeol Lee ◽  
Hohyeong Kim ◽  
Myeongkyu Lee
Keyword(s):  
Stainless Steel ◽  
Dielectric Layer ◽  
Metal Substrate ◽  
Structural Color ◽  
Structural Colors ◽  
Simulation And Experiment ◽  
Color Printing

Vivid structural colors are produced by texturing the surface of stainless steel and coating it with a dielectric layer.

scholarly journals Transmissive/Reflective Structural Color Filters: Theory and Applications

2014 ◽  
Vol 2014 ◽  
pp. 1-17 ◽  
Author(s):  
Yan Yu ◽  
Long Wen ◽  
Shichao Song ◽  
Qin Chen
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Recent Progress ◽  
Image Sensors ◽  
Cavity Resonance ◽  
Structural Color ◽  
Color Selection ◽  
Structural Colors ◽  
Cmos Image Sensors ◽  
Color Filters

Structural color filters, which obtain color selection by varying structures, have attracted extensive research interest in recent years due to the advantages of compactness, stability, multifunctions, and so on. In general, the mechanisms of structural colors are based on the interaction between light and structures, including light diffraction, cavity resonance, and surface plasmon resonance. This paper reviews recent progress of various structural color techniques and the integration applications of structural color filters in CMOS image sensors, solar cells, and display.

scholarly journals Angle-dependent structural colors in a nanoscale-grating photonic crystal fabricated by reverse nanoimprint technology

2019 ◽  
Vol 10 ◽  
pp. 1211-1216 ◽  
Author(s):  
Xu Zheng ◽  
Qing Wang ◽  
Jinjin Luan ◽  
Yao Li ◽  
Ning Wang ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Nanoimprint Lithography ◽  
Structural Parameters ◽  
Visible Spectrum ◽  
Blue Shift ◽  
Structural Color ◽  
Observation Angle ◽  
Peak Wavelength ◽  
Structural Colors ◽  
Entire Visible Spectrum

The structural color of angle-sensitive photonic crystals has attracted great interest because of a possible application in visual sensors. The appearance of a photonic crystal is mainly influenced by the optical properties, structural parameters and the observation angle. In this work, an angle-sensitive photonic crystal with nanoscale gratings was fabricated through reverse nanoimprint lithography. The periodicity and the structural color were investigated through measuring reflection spectra. The structural color of the photonic crystal has a period of 90°. Distinctive colors spanning the entire visible spectrum can be seen when the crystal is rotated. In addition, there is a blue-shift of the peak wavelength when the observation angle is increased. An equation for the observed wavelength as a function of the observation angle is proposed.

Structural color printing: full color printing with single ink

2010 ◽  
Author(s):  
Hyoki Kim ◽  
Jianping Ge ◽  
Junhoi Kim ◽  
Sung-Eun Choi ◽  
Hosuk Lee ◽  
...  
Keyword(s):  
Structural Color ◽  
Full Color ◽  
Color Printing

scholarly journals Design, Analysis and Test of a Hyperbolic Magnetic Field Voice Coil Actuator for Magnetic Levitation Fine Positioning Stage

Energies ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1830
Author(s):  
Yiheng Zhou ◽  
Baoquan Kou ◽  
He Zhang ◽  
Lu Zhang ◽  
Likun Wang
Keyword(s):  
Magnetic Field ◽  
High Precision ◽  
Magnetic Levitation ◽  
Structural Parameters ◽  
Industrial Applications ◽  
Degree Of Freedom ◽  
Force Density ◽  
Precision Positioning ◽  
Element Analysis ◽  
Voice Coil Actuator

The multi-degree-of-freedom high-precision positioning system (MHPS) is one of the key technologies in many advanced industrial applications. In this paper, a novel hyperbolic magnetic field voice coil actuator using a rhombus magnet array (HMF-VCA) for MHPS is proposed. Benefiting from the especially designed rhombus magnet array, the proposed HMF-VCA has the advantage of excellent force uniformity, which makes it suitable for multi-degree-of-freedom high-precision positioning applications. First, the basic structure and operation principles of the HMF-VCA are presented. Second, the six-degree-of-freedom force and torque characteristic of the HMF-VCA is studied by three-dimensional finite element analysis (3-D FEA). Third, the influence of structural parameters on force density and force uniformity is investigated, which is conducive to the design and optimization of the HMF-VCA. Finally, a prototype is constructed, and the comparison between the HMF-VCA and conventional VCAs proves the advantage of the proposed topology.

scholarly journals Response of Polycrystalline Solar Cell Outputs to Visible Spectrum and other Light Sources-a Case Study

2018 ◽  
Vol 8 (6) ◽  
pp. 4096
Author(s):  
Ayman Y. Al-Rawashdeh ◽  
Omar Albarbarawi ◽  
Ghazi Qaryouti
Keyword(s):  
Solar Cells ◽  
Visible Spectrum ◽  
Artificial Light ◽  
Light Sources ◽  
Variable Response ◽  
Artificial Illumination ◽  
Different Color ◽  
Color Filters ◽  
Sunlight Radiation

<p>In this case study, two polycrystalline solar modules were installed outdoors (irradiated by sunlight) and indoors (irradiated by artificial lights). The solar cells in both cases were installed using different color filters that allowed the passage of certain light frequencies. The amount of energy produced by each module were measured and compared to a reference module with no filter. The results indicated the variable response of polycrystalline solar cells to natural and artificial light sources, being more responsive in both cases to red band color as could be deduced from their % current outputs (72.5% sunlight radiation; 84.38% artificial light sources). Other colors, including yellow, green, orange and violet afforded acceptable outputs. The results indicated that electrical outputs of indoor solar cells decreased when colored filters were used, but red filter in general afforded the maximum outputs, for both the artificially radiated indoor and naturally radiated outdoor solar cells. The case study suggests the possible complementary advantage of using indoor mounted solar cells for the production of electricity during artificial illumination period of the day.</p>

Large-Scale Noniridescent Structural Color Printing Enabled by Infiltration-Driven Nonequilibrium Colloidal Assembly

2018 ◽  
Vol 30 (9) ◽  
pp. 1705667 ◽  
Author(s):  
Ling Bai ◽  
Van Cuong Mai ◽  
Yun Lim ◽  
Shuai Hou ◽  
Helmuth Möhwald ◽  
...  
Keyword(s):  
Large Scale ◽  
Structural Color ◽  
Colloidal Assembly ◽  
Color Printing

scholarly journals Tuning Physical Crosslinks in Hybrid Hydrogels for Network Structure Analysis and Mechanical Reinforcement

Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 352 ◽  
Author(s):  
Xue Lv ◽  
Chuang Liu ◽  
Zhubao Shao ◽  
Shulin Sun
Keyword(s):  
Mechanical Strength ◽  
Large Scale ◽  
Mechanical Performance ◽  
Structural Parameters ◽  
Industrial Applications ◽  
Dissipated Energy ◽  
Small Scale ◽  
Hybrid Particles ◽  
Mechanical Reinforcement ◽  
Hybrid Hydrogels

Hydrogels with high mechanical strength are needed for a variety of industrial applications. Here, a series of hydrogels was prepared by introducing hybrid particles as hydrophobic association points to toughen the hydrogels. These toughened hydrogels were able to transfer an external mechanical force via the reorganization of the crosslinking networks. They exhibited an extraordinary mechanical performance, which was the result of the coordination between hydrophobic segments and hybrid particles. Herein, the connection between the dissipated energy of the inner distribution structure (on a small scale) and the mechanical properties (on a large scale) was conducted. Specifically, we inspected hydrogels of latex particles (LPs) with different chain lengths (C4, C12, C18) and studied their inner structural parameters, namely, the relationship between the density and molecular weight of crosslinking points to the mechanical strength and energy dissipation. Favorable traits of the hydrogels included compact internal structures that were basically free from defects and external structures with puncture resistance, high toughness, etc. Based on the experimental results that agreed with the theoretical results, this study provides a profound understanding of the internal structure of hydrogels, and it offers a new idea for the design of high-strength hybrid hydrogels.

scholarly journals Stomatocyte structural color-barcode micromotors for multiplex assays

2019 ◽  
Vol 7 (3) ◽  
pp. 644-651 ◽  
Author(s):  
Lijun Cai ◽  
Huan Wang ◽  
Yunru Yu ◽  
Feika Bian ◽  
Yu Wang ◽  
...  
Keyword(s):  
Biomedical Applications ◽  
Colloidal Crystal ◽  
Structural Color ◽  
Multiplex Detection ◽  
Color Coding ◽  
Functional Elements ◽  
Structural Colors ◽  
Multiplex Assays ◽  
Magnetic Elements ◽  
Extracting Solvent

Abstract Artificial micromotors have a demonstrated value in the biomedical area. Attempts to develop this technology tend to impart micromotors with novel functions to improve the values. Herein, we present novel structural color-barcode micromotors for the multiplex assays. We found that, by rapidly extracting solvent and assembling monodispersed nanoparticles in droplets, it could form stomatocyte colloidal crystal clusters, which not only showed striking structural colors and characteristic reflection peaks due to their ordered nanoparticles arrangement, but also provided effective cavities for the integration of functional elements. Thus, the micromotors with catalysts or magnetic elements in their cavities, as well as with the corresponding structural color coding, could be achieved by using the platinum and ferric oxide dispersed pre-gel to fill and duplicate the stomatocyte colloidal crystal clusters. We have demonstrated that the self-movement of these structural color-barcode micromotors could efficiently accelerate the mixing speed of the detection sample and greatly increase the probe–target interactions towards faster and more sensitive single or multiplex detection, and the magnetism of these barcode micromotors enables the flexible collection of the micromotors, which could facilitate the detection processes. These features make the stomatocyte structural color-barcode micromotors ideal for biomedical applications.

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