Photonic crystal composites with variable structural color and manufacturing method thereof
AssigneeYkmc, Inc.
InventorsHae Nyoung Lee, Ji Hyun Park, Sung Youl Cho, Ki Bum Jang
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Abstract
Disclosed are a structural color variable photonic crystal composite material and a method of manufacturing the same, and more particularly, a photonic crystal composite material having various changes in color by external stimulation and controlling the color change, and a method of manufacturing the same. The structural color variable photonic crystal composite material includes a metal having a metal oxide layer formed on its surface, wherein the metal oxide layer includes a plurality of pores, and a variable material that swells and contracts within the pores by external stimulation.
Claims6
A structural color variable photonic crystal composite material, including:
- a metal having a metal oxide layer formed on its surface, wherein:
- the metal oxide layer is a porous layer including a plurality of pores, and includes a variable material that swells and contracts within the pores by external stimulation;
- the metal includes a titanium-based alloy:
- the external stimulation includes stimulation by one or more external stimuli selected from electricity, magnetism, temperature, and humidity;
- the variable material includes:
- a hydrogel polymerized from precursors containing MMA (Methacrylic acid), bis-acrylamide and a photoinitiator,
- a composite material formed by heat treating a first solution including PS-b-P2VP (Polystyrene-b-poly(2-vinyl pyridine) diblock copolymer), and propylene glycol monomethyl ether acetate, or
- a polymer formed by polymerizing a second solution with ultraviolet light (UV), the second solution including NaAMPS (2-acrylamido-2-methyl-propane sulfonic acid sodium salt) monomers, MBAA (N,N′-Methylenebisacrylamide) crosslinking agent, and α-oxoglutaric acid.
Dependencies are inferred from the claim text.