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Tunable Color Coating of E-Textiles by Atomic Layer Deposition of Multilayer TiO2/Al2O3 Films.

07:00 EST 13th February 2020 | BioPortfolio

Summary of "Tunable Color Coating of E-Textiles by Atomic Layer Deposition of Multilayer TiO2/Al2O3 Films."

In this study, we successfully fabricated color-coated electronic fibers by depositing Al2O3/TiO2 on commercially available electronic fibers and evaluated their mechanical properties, such as tensile and shrinkage properties, as well as their chemical stability upon acid-base exposure. The coloring features of single-layer TiO2 and alternating Al2O3/TiO2 multilayers deposited by atomic layer deposition (ALD) were experimentally examined on a silicon substrate. The color of the coated fibers could be tuned to violet, green, or pink just by varying the layer thickness; hence, this method is highly effective in enhancing the fastness of structural color on conductive fabrics. Simulation results revealed that five different colors can be obtained with single-layer TiO2 and Al2O3/TiO2 multilayers were shown depending on the film thickness and their refractive indices. The chemical stability of the color-coated fibers was studied by immersing them in acidic and basic solutions. It was found that the fibers could withstand these solutions, with almost negligible changes in their morphology; this in turn indicates their excellent chemical stability. These switchable stable color-based conductive fibers can be used as a platform to directly integrate future wearable electronics in textiles.

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This article was published in the following journal.

Name: Langmuir : the ACS journal of surfaces and colloids
ISSN: 1520-5827
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