Double-sided structural color of Fe3O4@SiO2 nanoparticles under the electric field

Zhang, Jianfei; Chu, Chengyi; Sun, Aihua; Ma, Songde; Qiao, Xiaojuan; Wang, Chongyang; Guo, Jianjun; Li, Zhixiang; Xu, Gaojie

doi:10.1016/j.jallcom.2015.09.052

Cited by 19 publications

(8 citation statements)

References 25 publications

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“…Because the structural color imparted by a photonic crystal is generated based on a different principle from the color obtained from a pigment, these crystals have been widely studied as new sources of color . In addition, the structural color can be dynamically manipulated by external sources such as electrical, chemical, thermal, or mechanical stimuli, and therefore a large number of stimuli‐responsive photonic crystals have been developed in recent years . However, most of their color manipulation is based on the modification of the periodicity of the photonic crystals with external stimuli.…”

Section: Figurementioning

confidence: 99%

Electroresponsive Structurally Colored Materials: A Combination of Structural and Electrochromic Effects

et al. 2016

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Electroresponsive structurally colored materials composed of ordered arrays of polyaniline@poly(methyl methacrylate) (PANI@PMMA) core-shell nanoparticles have been successfully prepared. The core-shell nanoparticles were synthesized by deposition of PANI shells on the surfaces of the PMMA cores by the oxidative polymerization of anilinium chloride. Ordered arrays were then fabricated by using the fluidic cell method. Because the ordered arrays and the PANI shells generate structural and electrochromic colors, respectively, these core-shell colloidal crystals exhibited colors resulting from the combined effects of these materials. The crystal colors depended greatly on the size of PANI@PMMA particles and could also be varied by the application of a voltage. The electrochromic colors of these arrays were found to be quite different from those exhibited by pure PANI films prepared by electrochemical oxidation.

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Section: Figurementioning

confidence: 99%

Electroresponsive Structurally Colored Materials: A Combination of Structural and Electrochromic Effects

et al. 2016

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“…Furthermore, Sun et al reported a two-sided structural color of Fe 3 O 4 @SiO 2 colloidal particle suspensions that can be reversibly regulated under the action of an external electric field. [128] As the applied positive voltage increases, the lattice spacing of the orderly structure is reduced correspondingly, and the structural color can be adjusted between red and blue. Simultaneously, the color of the negative electrode is switched from red to gray and then to red (Figure 17a).…”

Section: Electrical Rpcs For Encryption and Decryptionmentioning

confidence: 99%

“…The authors declare no conflict of interest. [128] Copyright 2016, Elsevier. b) Schematic illustration of the change of interparticle distance and structural color of photonic nanocomposites during electric field driving.…”

Section: Conflict Of Interestmentioning

confidence: 99%

Stimulus‐Responsive Photonic Crystals for Advanced Security

Wang

Zhou

Liu

et al. 2022

Adv Funct Materials

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Counterfeiting is a growing global issue causing severe negative impacts on the social economy and posing serious security threats to individuals and communities. However, the current anticounterfeiting technologies are relatively well known to fakers and lack sufficient security owing to the development and commercialization of high‐resolution equipment. Thus, designing new anticounterfeiting materials and systems is urgently needed. Photonic crystals (PCs) with vivid structural colors are promising materials for advanced security applications because of their unique optical characteristics. In particular, responsive PCs (RPCs), whose optical signals can be readily adjusted by external stimuli, are expected to provide improved security and may be used to determine the authenticity of banknotes, documents, and drugs. In this review, the strategies are summarized for designing RPCs, including filling responsive materials into the interstitial space of periodic photonic structures and using responsive materials as construction blocks of PCs. Subsequently, the latest progress in developing RPCs constructed for optical encryption and information security is discussed in detail. Finally, the challenges and outlook of using RPCs for optical encryption technologies are presented.

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“…Mixing on the nanometer scale generates materials that have greater homogeneity and that exhibit characteristics that lie between those of the original phases or, in some cases,e ntirely new properties.Acore-shell nanoparticle is composed of ac ore made of one material that has been coated with another substance,and such particles represent hybrid nanomaterials with ag reater variety of promising applications compared with single-phase nanoparticles. [12,13] However, most of their color manipulation is based on the modification of the periodicity of the photonic crystals with external stimuli. [6,7] In addition, the structural color can be dynamically manipulated by external sources such as electrical, [8] chemical, [9] thermal, [10] or mechanical stimuli, [11] and therefore al arge number of stimuli-responsive photonic crystals have been developed in recent years.…”

mentioning

confidence: 99%

“…[6,7] In addition, the structural color can be dynamically manipulated by external sources such as electrical, [8] chemical, [9] thermal, [10] or mechanical stimuli, [11] and therefore al arge number of stimuli-responsive photonic crystals have been developed in recent years. [12,13] However, most of their color manipulation is based on the modification of the periodicity of the photonic crystals with external stimuli.…”

mentioning

confidence: 99%

Electroresponsive Structurally Colored Materials: A Combination of Structural and Electrochromic Effects

et al. 2016

View full text Add to dashboard Cite

Electroresponsive structurally colored materials composed of ordered arrays of polyaniline@poly(methyl methacrylate) (PANI@PMMA) core-shell nanoparticles have been successfully prepared. The core-shell nanoparticles were synthesized by deposition of PANI shells on the surfaces of the PMMA cores by the oxidative polymerization of anilinium chloride.O rdered arrays were then fabricated by using the fluidic cell method. Because the ordered arrays and the PANI shells generate structural and electrochromic colors, respectively,these core-shell colloidal crystals exhibited colors resulting from the combined effects of these materials.T he crystal colors depended greatly on the sizeo fP ANI@PMMA particles and could also be varied by the application of avoltage.The electrochromic colors of these arrays were found to be quite different from those exhibited by pure PANI films prepared by electrochemical oxidation.

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Double-sided structural color of Fe3O4@SiO2 nanoparticles under the electric field

Cited by 19 publications

References 25 publications

Electroresponsive Structurally Colored Materials: A Combination of Structural and Electrochromic Effects

Electroresponsive Structurally Colored Materials: A Combination of Structural and Electrochromic Effects

Stimulus‐Responsive Photonic Crystals for Advanced Security

Electroresponsive Structurally Colored Materials: A Combination of Structural and Electrochromic Effects

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