Rahman, Md Abdur Kim, Dong Kyu Lee, Jong-Kwon Byun, Ji Young 2024-01-19T10:33:03Z 2024-01-19T10:33:03Z 2022-12-01 2022-12 2192-8606 https://pubs.kist.re.kr/handle/201004/114242 Structural colors with tunable properties have extensive applications in surface decoration, arts, absorbers, and optical filters. Planar structures have more advantages over other forms studied to date due to their easy manufacturability. Metal-insulator-metal-based structures are one of the known methods to fabricate structural colors where colors can be tuned mainly by the thickness of the intermediate lossless insulator layer. However, generating colors by MIM structure requires a thin metallic layer on top, and the top metals' abrasiveness and/or oxidation may degrade the colors quickly. Thus, we propose a lossy dielectric layer to replace the top metallic layer as a solution to ensure the structure's durability by preventing scratches and oxidation. Herein, CrON/Si3N4/Metal structures have been studied where theoretical investigations suggest that highly saturated colors can be generated in the lossy-lossless dielectric structures. Experimental data validated such simulations by revealing a range of vivid colors. Furthermore, these structures can easily achieve strong light absorption (SLA) even for a thick top layer of similar to 100 nm. The colors realized by these structures are appeared due to a combination of the interference effect of the asymmetric Fabry-Perot cavity structure and the absorption rate in the CrO x N1-x layer. English WALTER DE GRUYTER GMBH To realize a variety of structural color adjustments via lossy-dielectric-based Fabry-Perot cavity structure Article 10.1515/nanoph-2022-0522 1 Nanophotonics, v.11, no.21, pp.4855 - 4868 Nanophotonics 11 21 4855 4868 Y scie scopus 000878300800001 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Optics Physics, Applied Science & Technology - Other Topics Materials Science Optics Physics Article; Early Access PHOTONIC CRYSTAL FILMS LARGE-AREA ABSORBERS ULTRATHIN DESIGN Fabry-Perot cavity lossy dielectric reflection colors strong light absorption structural colors