材料科学
结构着色
电泳沉积
饱和(图论)
纳米技术
有色的
弯曲
亮度
复合材料
涂层
光电子学
光学
数学
光子晶体
组合数学
物理
作者
Mario Echeverri,Anvay Patil,Ming Xiao,Weiyao Li,Matthew D. Shawkey,Ali Dhinojwala
标识
DOI:10.1021/acsami.9b04560
摘要
Nanostructured materials producing structural colors have great potential in replacing toxic metals or organic pigments. Electrophoretic deposition (EPD) is a promising method for producing these materials on a large scale, but it requires improvements in brightness, saturation, and mechanical stability. Herein, we use EPD assembly to codeposit silica (SiO2) particles with precursors of synthetic melanin, polydopamine (PDA), to produce mechanically robust, wide-angle structurally colored coatings. We use spectrophotometry to show that PDA precursors enhance the saturation of structural colors and nanoscratch testing to demonstrate that they stabilize particles within the EPD coatings. Stabilization by PDA precursors allows us to coat flexible substrates that can sustain bending stresses, opening an avenue for electroprinting on flexible materials.
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