Highly stable and strain-insensitive metal film conductors <i>via</i> manipulating strain distribution

Zhu, Ting; Wu, Kai; Wang, Yaqiang; Zhang, Jinyu; Liu, Gang; Sun, Jun

doi:10.1039/d3mh01399e

Cited by 6 publications

(1 citation statement)

References 90 publications

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“…Wrinkled morphologies are ubiquitous in both artificial and natural systems. , In recent years, microto-nanoscale wrinkling has emerged as a straightforward and easily controllable surface modification technique. − It is often employed in conjunction with photonic soft materials to create structural colors or regulate microstructures . By dynamically adjusting the wrinkle state, films can achieve precise control over optical transmittance, angle dependence, visual angles, and hues of structural color. − It is worth noting that, based on the design of a bilayer system, the optical system can achieve intricate dynamic reconfiguration of wrinkles following stress stimuli .…”

Section: Introductionmentioning

confidence: 99%

Biomimetic Photonic Elastomer Exhibiting Stress/Moisture Reconfigurable Wrinkle-Lattice for Reversible Deformation Information Storage

Lin,

Kou,

Gao

et al. 2024

ACS Nano

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Photonic elastomers, capable of converting imperceptible deformations into visible colors, show significant potential in smart materials. However, instantaneous deformation is arduous to record accurately due to the disappearance of optical information after deformation recovery. Herein, inspired by the folding structures of iridocytes in cephalopods, a stressand moisture-triggered wrinkling and erasure effect is proposed to be introduced in the construction of a photonic elastomer. Implemented in a dual-network polymer framework with modulatable locking, it allows for reversible deformation storage. The photonic elastomer comprises a surface onedimensional photonic crystal (1DPC) and a poly-(dimethylsiloxane) (PDMS) substrate. The deformed 1DPC lattice transforms into a wrinkled state due to a substrate deformation mismatch, preserving strain-induced structural color information through interchain hydrogen bonding and crystalline shape-locking in dual-network polymers. Reading the color provides multidimensional information about the instantaneous deformation degree and distribution. Moreover, the moistureinduced shape-memory feature of the 1DPC can be triggered with a minute amount of water, like fingertip perspiration or humidity change (35% to 80%), to restore the original color. This stress/moisture-responsive photonic elastomer, with its dynamically reconfigurable wrinkle-lattice, holds great promise for applications in mechanical sensing, inkless writing, and anticounterfeiting, significantly enhancing the versatility of photonic materials.

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