| 摘要 |
PURPOSE: A magnetic particle and a manufacturing method thereof are provided to improve the security performance, brightness, oil absorption, and specific surface area of a magnetic particle. CONSTITUTION: A magnetic particle used for forming an inorganic light emitting layer comprises an inorganic light emitting layer, a magnetic core(100), a shell(300), and an aperture part(200) formed between the magnetic core and the shell, wherein the aperture or diameter of the aperture part is 10nm or greater. The inorganic light emitting layer comprises one or more kinds of host materials selected from the group consisting of erbium, eurofoam, ytterbium, holmium, and thulium and one or more kinds of guest materials selected from the group consisting of yttrium, gadolinium, vanadium, zinc, titanium, and oxide compositions thereof.
|
