Nanotechnology, Год журнала: 2024, Номер 35(46), С. 465601 - 465601

Опубликована: Авг. 28, 2024

Abstract Amorphous arrays assembled from colloidal microspheres are a way that obtains angle-independent structural colors. In order to obtain additional properties, microspheres, which constituent units, can be modified with other materials. Here, we utilized the silane-functionalized carbon quantum dots (SiCDs) by incorporating them into Stöber reaction fabricate Fe 3 O 4 @SiO 2 /SiCDs nanospheres core–shell structure. (ACAs) were constructed on commercial printing paper using nanoparticles as units simple permeation assembly. Macroscopically, prepared ACAs exhibit magnetic properties of , while under sunlight, they display bright, Under ultraviolet light, array shows significant fluorescence. This enables presentation multidimensional information varying and lighting conditions. By adjusting thickness outer SiO composite layer, optical magnetism controlled easily. Moreover, due strong light absorption capability high refractive index digital patterns demonstrate excellent multi-level anti-counterfeiting characteristics, even water exposure. The nanospheres, along their distinct characteristics different environments, suggest wide applicability in fields multifunctional pigments, bioimaging, sensing displays.

Язык: Английский