Simple and efficient fabrication of multi-stage color-changeable photonic prints as anti-counterfeit labels

Yang, Dongpeng; Ouyang, Cheng; Zhang, Yuqi; Ma, Dekun; Ye, Yuemei; Bu, Donglei; Huang, Shaoming

doi:10.1016/j.jcis.2021.01.041

Cited by 49 publications

(36 citation statements)

References 72 publications

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“…On the other hand, the structural colors of PCs were also reported as latent templates for applications in anti-counterfeiting because of their unique periodicity and viewing angle-dependent optical properties. 21–30 Qin et al reported angle-dependent structural colors to provide rich optical information, thus producing a rainbow-color chip to obtain convenient recognition of multiple analytes. 31 Meng et al prepared a flexible polyvinylidene fluoride (PVDF) anti-opal structure color film with angle dependence.…”

Section: Introductionmentioning

confidence: 99%

A hybrid hydrogel system composed of CdTe quantum dots and photonic crystals for optical anti-counterfeiting and information encoding–decoding

et al. 2022

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Section: Introductionmentioning

confidence: 99%

A hybrid hydrogel system composed of CdTe quantum dots and photonic crystals for optical anti-counterfeiting and information encoding–decoding

et al. 2022

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“…[2][3][4][5] Various fluorescent materials, including rare-earth quantum dots, supramolecular nanoparticles, polymer dots, perovskite nanocrystals and semiconductor quantum dots have been employed for anticounterfeiting. [6] Huang's group prepared CCPPs by packing responsive photonic crystals with diverse crosslinking degrees into a desired order, but the material needs to be in the appropriate solvent to show the color. [7] The development of new anti-fake products becomes particularly critical.…”

Section: Introductionmentioning

confidence: 99%

Carbon Dot‐Layered Double Hydroxide Nanocomposite with Dual‐Mode Emission for Anti‐Fake Application

et al. 2022

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There is an urgent need to develop a safe, unclonable comprehensive anti‐counterfeiting technology. The novel organic‐inorganic nanocomposite material CD‐LDH uses fluorescence and phosphorescence to achieve double verification. It is made into luminous ink to write anti‐fake marks of important documents. There is no obvious trace under the fluorescent lamp, while blue light emission under the ultraviolet lamp, and a long afterglow of 5 s after the ultraviolet lamp is turned off. The material can be widely used in the fields of information transmission and anti‐fake.

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“…Photonic crystals (PCs) exhibit potential applications in the field of color display, [1][2][3][4][5][6][7] pigment, [8][9][10][11] printing/pattern, [12][13][14][15][16][17][18] sensing, [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35] chemical separation, [36,37] anti-counterfeiting, [38][39][40][41][42][43][44][45][46][47][48][49][50][51][...…”

Section: Introductionmentioning

confidence: 99%

“…Photonic crystals (PCs) exhibit potential applications in the field of color display, [ 1–7 ] pigment, [ 8–11 ] printing/pattern, [ 12–18 ] sensing, [ 19–35 ] chemical separation, [ 36,37 ] anti‐counterfeiting, [ 38–53 ] and photocatalysis, [ 54–57 ] benefiting from the unique periodic structures. The color of the PC comes from the diffraction, interference, and scattering of light by its ordered structures, which can be altered by the lattice constant, refractive index, and orientations of the crystal.…”

Section: Introductionmentioning

confidence: 99%

Dual‐Modal Invisible Photonic Crystal Prints from Photo/Water Responsive Photonic Crystals

Yang

Luo

et al. 2021

Advanced Photonics Research

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Invisible photonic crystal prints (IPCPs) are appealing for anti‐counterfeiting and information protection due to their capability in hiding and showing the encrypted information under specific conditions. Herein, the dual‐modal IPCPs based on responsive photonic crystals (PCs) with tunable photoluminescent (PL) and structural colors are reported. The responsive PCs are prepared by the self‐assembly of dyes doped silica particles into non/swellable polymers. The independent design and control over the optical response of the PL of the particles and structural colors of PCs enable the successful encryption of dual‐modal patterns. Under normal conditions, the as‐fabricated IPCP shows a fake pattern with uniform structural colors and thus hides the encrypted pattern due to the similar particles size, lattice constant, and refractive index of each region. In striking contrast, PL and structural colors‐based new patterns can be instantly and reversibly revealed when the IPCP is exposed to UV illumination or soaked in water. This work provides a new concept in designing and fabricating dual‐modal IPCPs, and facilitates their applications in the fields of color display, antifake package, and multilevel anti‐counterfeiting.

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Simple and efficient fabrication of multi-stage color-changeable photonic prints as anti-counterfeit labels

Cited by 49 publications

References 72 publications

A hybrid hydrogel system composed of CdTe quantum dots and photonic crystals for optical anti-counterfeiting and information encoding–decoding

A hybrid hydrogel system composed of CdTe quantum dots and photonic crystals for optical anti-counterfeiting and information encoding–decoding

Carbon Dot‐Layered Double Hydroxide Nanocomposite with Dual‐Mode Emission for Anti‐Fake Application

Dual‐Modal Invisible Photonic Crystal Prints from Photo/Water Responsive Photonic Crystals

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