Bioinspired, electroactive colorable and additive manufactured photonic artificial muscle

Soft Matter ◽  
2022 ◽  
Author(s):  
Wentao Ma ◽  
Bo Li ◽  
Lei Jiang ◽  
Ya Sun ◽  
Yehui Wu ◽  
...  
Keyword(s):  
Color Change ◽  
Artificial Muscle ◽  
Structural Coloration ◽  
Display Devices ◽  
Change Effect

Structural coloration in biomimetic nanostructures has remarkable application potentials in vivid display devices, but its color change effect is still insufficiently competitive towards biology. Inspired by the feather color change...

scholarly journals Alexdrandrite Effects and Pseudosymmetry in Aluminum Oxalates

2014 ◽  
Vol 70 (a1) ◽  
pp. C1017-C1017
Author(s):  
Ruthairat Nimthong ◽  
Matthias Zeller ◽  
Patimaporn Sungnoi ◽  
Sumpun Wongnawa ◽  
Chaveng Pakawatchai
Keyword(s):  
Aqueous Solution ◽  
Solid State ◽  
Color Change ◽  
Analysis Data ◽  
Tetragonal Symmetry ◽  
Potassium Ions ◽  
Solution Properties ◽  
Cubic Symmetry ◽  
Change Effect ◽  
Sodium And Potassium

Three chromium doped potassium aluminum oxalates, (K3[Al0.95Cr0.05(C2O4)3]·3H2O) "Blue", (K2/3Na7/3[Al0.95Cr0.05(C2O4)3]·4H2O) "RedCubic", and (K18{Na[Al0.964Cr0.036(C2O4)3]6}Cl·18H2O) "Red-Hexagonal" were prepared from aqueous solutions of K3[Cr(C2O4)3]·3H2O, K3[Al(C2O4)3]·3H2O and NaCl, and their solid state and solution properties were rationalized from their crystal structures, analysis data and solid state and solution UV-vis spectra. Crystals of "RedCubic" are characterized by a metrically cubic I-centered unit cell, but do have actual tetragonal symmetry derived by ordering of sodium and potassium ions not compatible with the apparent cubic symmetry. Results of 13C-NMR, EPMA/EDX, SC-XRD, and UV-Vis spectroscopies are discussed in relation to the compound's structures and color behavior. In aqueous solution RedCubic and Blue show the same greenish purple color and identical electronic absorption peaks. In the solid state, they have different colors and show slightly different absorption peaks. Their color behavior as well as the Alexandrite color-change effect observed in the two Red crystals are rationalized based on the compounds' absorption peaks.

scholarly journals Simultaneously Achieving High Capacity Storage and Multilevel Anti-Counterfeiting Using Electrochromic and Electrofluorochromic Dual-Functional AIE Polymers

2021 ◽  
Author(s):  
Lin Lu ◽  
Kaojin Wang ◽  
Haozhong Wu ◽  
Anjun Qin ◽  
Ben Zhong Tang
Keyword(s):  
Color Change ◽  
Dimensional Space ◽  
High Capacity ◽  
Information Storage ◽  
Great Promise ◽  
Security Technology ◽  
Color Code ◽  
Display Devices ◽  
Dual Functional ◽  
Multidimensional Information

With the advent of the big data era, information storage and security are becoming increasingly important. However, high capacity information storage and multilevel anti-counterfeiting are typically difficult to simultaneously achieve. To address this challenge, herein, two electrochromic and electrofluorochromic dual-functional polymers with aggregation-induced emission (AIE) features are skillfully designed. Upon application of voltage, the absorption and fluorescence spectra of the two polymers can undergo reversible changes, accompanying with the variation of appearance color and emission. By utilizing the controllable characteristics of polymers, the dual-mode display devices are fabricated via a simple spraying method. More interestingly, the color code device was elaborately constructed by adding color change multiplexing to two-dimensional space, thereby achieving high capacity information storage. Moreover, the color code device can also be applied in the multilevel anti-counterfeiting areas. The encrypted information can be dynamically converted under different voltages. The AIE polymers show great promise in the applications of multidimensional information storage and dynamic anti-counterfeiting and the design strategy may provide a new path for advanced information storage and high security technology.<br><div><br></div>

scholarly journals Color Change Effect in an Organic–Inorganic Hybrid Material Based on a Porphyrin Diacid

2016 ◽  
Vol 120 (49) ◽  
pp. 28363-28373 ◽  
Author(s):  
Bettina Wagner ◽  
Natalie Dehnhardt ◽  
Martin Schmid ◽  
Benedikt P. Klein ◽  
Lukas Ruppenthal ◽  
...  
Keyword(s):  
Hybrid Material ◽  
Color Change ◽  
Inorganic Hybrid ◽  
Inorganic Hybrid Material ◽  
Change Effect

scholarly journals Lithography-free and Highly Angle Sensitive Structural Coloration Using Fabry–Perot Resonance of Tin

2021 ◽  
Author(s):  
Young-Gyun Kim ◽  
Ying-Jun Quan ◽  
Min-Soo Kim ◽  
Younggyun Cho ◽  
Sung-Hoon Ahn
Keyword(s):  
Evaluation Method ◽  
Color Change ◽  
Monochromatic Light ◽  
High Sensitivity ◽  
Metal Structure ◽  
Sensor Technology ◽  
Structural Coloration ◽  
Metal Insulator Metal ◽  
Fabry Perot ◽  
Nano Patterning

AbstractRecently, there has been much interest in applying the color changes of nano-patterned structures to sensor technology. However, the lithographic nano-patterning process is not environmentally friendly, and it is difficult to fabricate large areas of color due to limitations associated with this approach. In this study, we realized a highly tunable structural coloration based on a Fabry–Perot interferometer design that does not require nano-patterning processes. To increase the reflected color change according to the angle, a color element using an asymmetric metal–insulator–metal structure was applied, fabricated using silver–silicon dioxide–tin (Sn), respectively. Using the optical properties of Sn, we maximized the change in reflection color and realized three primary colors of subtractive color of cyan, magenta and yellow according to the angle of designed MIM structure. Theoretical and experimental results revealed that the color and intensity of the reflectance depended strongly on the angle of the reflective surfaces. The manufacturing process is simple and yields large surfaces of high quality. Based on this premise, we fabricated a soft robot capable of color camouflage, and an angle-detecting color sensor for inspecting the three-dimensional shape quality of curved glass with a high sensitivity of 1.8 nm/degree. In addition, we propose a shape evaluation method by color, spectrometry, and monochromatic light.

scholarly journals Simultaneously Achieving High Capacity Storage and Multilevel Anti-Counterfeiting Using Electrochromic and Electrofluorochromic Dual-Functional AIE Polymers

2021 ◽  
Author(s):  
Lin Lu ◽  
Kaojin Wang ◽  
Haozhong Wu ◽  
Anjun Qin ◽  
Ben Zhong Tang
Keyword(s):  
Color Change ◽  
Dimensional Space ◽  
High Capacity ◽  
Information Storage ◽  
Great Promise ◽  
Security Technology ◽  
Color Code ◽  
Display Devices ◽  
Dual Functional ◽  
Multidimensional Information

With the advent of the big data era, information storage and security are becoming increasingly important. However, high capacity information storage and multilevel anti-counterfeiting are typically difficult to simultaneously achieve. To address this challenge, herein, two electrochromic and electrofluorochromic dual-functional polymers with aggregation-induced emission (AIE) features are skillfully designed. Upon application of voltage, the absorption and fluorescence spectra of the two polymers can undergo reversible changes, accompanying with the variation of appearance color and emission. By utilizing the controllable characteristics of polymers, the dual-mode display devices are fabricated via a simple spraying method. More interestingly, the color code device was elaborately constructed by adding color change multiplexing to two-dimensional space, thereby achieving high capacity information storage. Moreover, the color code device can also be applied in the multilevel anti-counterfeiting areas. The encrypted information can be dynamically converted under different voltages. The AIE polymers show great promise in the applications of multidimensional information storage and dynamic anti-counterfeiting and the design strategy may provide a new path for advanced information storage and high security technology.<br><div><br></div>

Color Change Effect Based on Provitamin D Phototransformation in Cholesteric Liquid Crystalline Mixtures

2004 ◽  
Vol 420 (1) ◽  
pp. 47-53 ◽  
Author(s):  
M. Aronishidze ◽  
A. Chanishvili ◽  
G. Chilaya ◽  
G. Petriashvili ◽  
S. Tavzarashvili ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Color Change ◽  
Change Effect ◽  
Cholesteric Liquid Crystalline

Color Change Can Be Earliest Sign of Melanoma

2005 ◽  
Vol 38 (22) ◽  
pp. 16
Author(s):  
TIMOTHY F. KIRN
Keyword(s):  
Color Change

Liquid crystals in display devices

1972 ◽  
Vol 107 (7) ◽  
pp. 503 ◽  
Author(s):  
A.A. Groshev ◽  
V.B. Sergeev
Keyword(s):  
Liquid Crystals ◽  
Display Devices
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