An inorganic-organic bonded europium fibers membrane: Synthesis, micromorphology control and anti-counterfeiting application

•Organic/inorganic bonded phosphors were prepared by combining inorganic fluorescent monomers with polymer monomers using free radical polymerization.•The relationship between the luminescent properties of the fibers and their micromorphology was investigated by adjusting the spinning parameters.•Anti-counterfeit fluorescent fiber nonwoven fabrics with logos are produced by screen printing. Rare-earth inorganic phosphors have attracted much attention owing to long lifetime, narrow emission, and high efficiency, but their applications are limited in its poor dispersion in polymers. Focusing on the problem, organic/inorganic bonded phosphors PMMA-VTES@Ba3ScB3O9:0.05Eu3+ was prepared with the VTES(vinyl triethoxysilane)@Ba3ScB3O9:0.05Eu3+ inorganic fluorescent monomers and methyl methacrylate (MMA) employing free radical polymerization, and then large-area fiber membrane was constructed using electrospinning technology. Chemical structure analysis confirms that the copolymerization of VTES@Ba3ScB3O9:0.05Eu3+ and MMA. The thermal stability of the polymer phosphors after fibrosis has been investigated in theory. The fluorescent fibers with good spinnability and luminescent properties were preferred through modulation of polymer solution properties such as the relative molecular weight of the polymer, the concentration of the spinning solution, and the conductive salt. The fluorescent fiber non-woven fabric with LOGO is prepared by screen printing with the optimal fiber film. The LOGO undergoes a transformation from a concealed pattern under natural light to a vibrant red light pattern when exposed to 254 nm ultraviolet light, imparting a specific anti-counterfeiting feature.