Bio‐Inspired Highly Brilliant Structural Colors and Derived Photonic Superstructures for Information Encryption and Fluorescence Enhancement

Abstract Inspired by the brilliant and tunable structural colors based on the large refractive index contrast (Δn) and non‐close‐packing structures of chameleon skins, ZnS–silica photonic crystals (PCs) with highly saturated and adjustable colors are fabricated. Due to the large Δn and non‐close‐pac...

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Main Authors: Xiaoru Liu, Junfu Liu, Boru Wei, Dongpeng Yang, Li Luo, Dekun Ma, Shaoming Huang
Format: Article
Language:English
Published: Wiley 2023-08-01
Series:Advanced Science
Subjects:
Online Access:https://doi.org/10.1002/advs.202302240
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author Xiaoru Liu
Junfu Liu
Boru Wei
Dongpeng Yang
Li Luo
Dekun Ma
Shaoming Huang
author_facet Xiaoru Liu
Junfu Liu
Boru Wei
Dongpeng Yang
Li Luo
Dekun Ma
Shaoming Huang
author_sort Xiaoru Liu
collection DOAJ
description Abstract Inspired by the brilliant and tunable structural colors based on the large refractive index contrast (Δn) and non‐close‐packing structures of chameleon skins, ZnS–silica photonic crystals (PCs) with highly saturated and adjustable colors are fabricated. Due to the large Δn and non‐close‐packing structure, ZnS–silica PCs show 1) intense reflectance (maximal: 90%), wide photonic bandgaps, and large peak areas, 2.6–7.6, 1.6, and 4.0 times higher than those of silica PCs, respectively; 2) tunable colors by simply adjusting the volume fraction of particles with the same size, more convenient than the conventional way of altering particle sizes; and 3) a relatively low threshold of PC's thickness (57 µm) possessing maximal reflectance compared to that (>200 µm) of the silica PCs. Benefiting from the core–shell structure of the particles, various derived photonic superstructures are fabricated by co‐assembling ZnS–silica and silica particles into PCs or by selectively etching silica or ZnS of ZnS–silica/silica and ZnS–silica PCs. A new information encryption technique is developed based on the unique reversible “disorder–order” switch of water‐responsive photonic superstructures. Additionally, ZnS–silica PCs are ideal candidates for enhancing fluorescence (approximately tenfold), approximately six times higher than that of silica PC.
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spelling doaj.art-5a68f8bf3c8e43d6a8411600b66b2c1c2023-08-28T03:36:35ZengWileyAdvanced Science2198-38442023-08-011024n/an/a10.1002/advs.202302240Bio‐Inspired Highly Brilliant Structural Colors and Derived Photonic Superstructures for Information Encryption and Fluorescence EnhancementXiaoru Liu0Junfu Liu1Boru Wei2Dongpeng Yang3Li Luo4Dekun Ma5Shaoming Huang6School of Materials and Energy School of Physics and Optoelectric Engineering Guangzhou Key Laboratory of Low‐Dimensional Materials and Energy Storage Devices Guangdong University of Technology Guangzhou 510006 P. R. ChinaSchool of Materials and Energy School of Physics and Optoelectric Engineering Guangzhou Key Laboratory of Low‐Dimensional Materials and Energy Storage Devices Guangdong University of Technology Guangzhou 510006 P. R. ChinaSchool of Materials and Energy School of Physics and Optoelectric Engineering Guangzhou Key Laboratory of Low‐Dimensional Materials and Energy Storage Devices Guangdong University of Technology Guangzhou 510006 P. R. ChinaSchool of Materials and Energy School of Physics and Optoelectric Engineering Guangzhou Key Laboratory of Low‐Dimensional Materials and Energy Storage Devices Guangdong University of Technology Guangzhou 510006 P. R. ChinaSchool of Materials and Energy School of Physics and Optoelectric Engineering Guangzhou Key Laboratory of Low‐Dimensional Materials and Energy Storage Devices Guangdong University of Technology Guangzhou 510006 P. R. ChinaZhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing 312000 P. R. ChinaSchool of Materials and Energy School of Physics and Optoelectric Engineering Guangzhou Key Laboratory of Low‐Dimensional Materials and Energy Storage Devices Guangdong University of Technology Guangzhou 510006 P. R. ChinaAbstract Inspired by the brilliant and tunable structural colors based on the large refractive index contrast (Δn) and non‐close‐packing structures of chameleon skins, ZnS–silica photonic crystals (PCs) with highly saturated and adjustable colors are fabricated. Due to the large Δn and non‐close‐packing structure, ZnS–silica PCs show 1) intense reflectance (maximal: 90%), wide photonic bandgaps, and large peak areas, 2.6–7.6, 1.6, and 4.0 times higher than those of silica PCs, respectively; 2) tunable colors by simply adjusting the volume fraction of particles with the same size, more convenient than the conventional way of altering particle sizes; and 3) a relatively low threshold of PC's thickness (57 µm) possessing maximal reflectance compared to that (>200 µm) of the silica PCs. Benefiting from the core–shell structure of the particles, various derived photonic superstructures are fabricated by co‐assembling ZnS–silica and silica particles into PCs or by selectively etching silica or ZnS of ZnS–silica/silica and ZnS–silica PCs. A new information encryption technique is developed based on the unique reversible “disorder–order” switch of water‐responsive photonic superstructures. Additionally, ZnS–silica PCs are ideal candidates for enhancing fluorescence (approximately tenfold), approximately six times higher than that of silica PC.https://doi.org/10.1002/advs.202302240brilliant structural colorenhancing fluorescenceinformation encryptionphotonic superstructuresrefractive index contrast
spellingShingle Xiaoru Liu
Junfu Liu
Boru Wei
Dongpeng Yang
Li Luo
Dekun Ma
Shaoming Huang
Bio‐Inspired Highly Brilliant Structural Colors and Derived Photonic Superstructures for Information Encryption and Fluorescence Enhancement
Advanced Science
brilliant structural color
enhancing fluorescence
information encryption
photonic superstructures
refractive index contrast
title Bio‐Inspired Highly Brilliant Structural Colors and Derived Photonic Superstructures for Information Encryption and Fluorescence Enhancement
title_full Bio‐Inspired Highly Brilliant Structural Colors and Derived Photonic Superstructures for Information Encryption and Fluorescence Enhancement
title_fullStr Bio‐Inspired Highly Brilliant Structural Colors and Derived Photonic Superstructures for Information Encryption and Fluorescence Enhancement
title_full_unstemmed Bio‐Inspired Highly Brilliant Structural Colors and Derived Photonic Superstructures for Information Encryption and Fluorescence Enhancement
title_short Bio‐Inspired Highly Brilliant Structural Colors and Derived Photonic Superstructures for Information Encryption and Fluorescence Enhancement
title_sort bio inspired highly brilliant structural colors and derived photonic superstructures for information encryption and fluorescence enhancement
topic brilliant structural color
enhancing fluorescence
information encryption
photonic superstructures
refractive index contrast
url https://doi.org/10.1002/advs.202302240
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AT boruwei bioinspiredhighlybrilliantstructuralcolorsandderivedphotonicsuperstructuresforinformationencryptionandfluorescenceenhancement
AT dongpengyang bioinspiredhighlybrilliantstructuralcolorsandderivedphotonicsuperstructuresforinformationencryptionandfluorescenceenhancement
AT liluo bioinspiredhighlybrilliantstructuralcolorsandderivedphotonicsuperstructuresforinformationencryptionandfluorescenceenhancement
AT dekunma bioinspiredhighlybrilliantstructuralcolorsandderivedphotonicsuperstructuresforinformationencryptionandfluorescenceenhancement
AT shaominghuang bioinspiredhighlybrilliantstructuralcolorsandderivedphotonicsuperstructuresforinformationencryptionandfluorescenceenhancement