Dresden 2020 – scientific programme

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MM: Fachverband Metall- und Materialphysik

MM 61: Nanomaterials - I

MM 61.5: Talk

Thursday, March 19, 2020, 16:45–17:00, IFW D

Scalable Structural Coloring Based on the Photonic Bandgap of Ordered Nanoporous Array — •Yudie Huang, Fanzhou Lv, Jiaxu Chen, Zhihang Wang, Shiyao Jia, Yi Wang, and Wenxin Wang — Harbin Engineering University , Harbin, China

Full structural coloring within the range of visible light has been fabricated through various methods due to the distinguished features of high saturation, durability and unfading. However, the reported prepared samples do not exhibit superior saturation compared to the natural structural color materials. Because of broad and multi-peaks surrounding profiles are existing in reflective ranges that obstruct the coloring saturation. Bandgap-assisted structural coloring based on sharp and less reflective peaks is highly recommended. Besides, color over a considerable spectral range remains stable. Here, we present a scalable and vivid structural coloring approach to acquire color with a more pure hue. (1) designing a metal-dielectric-metal structure system to narrow the reflect peaks. (2) regulating the parameters of the nanoporous array to reduce the number of reflectivity peaks and achieve bright and pure hue. The reflective peaks of nanoarray are adjusted and concentrated towards the position of photonic bandgap caused by highly ordered dielectric arrangement. (3) owing to the used fabrication method, the area of structural color presentation is sufficiently large to serve as commercial applications. Therefore, this scalable and vivid structural coloring proposal has promising application prospects in human daily life.