Development of structure-tailored and composite magnetic-fluorescent microspheres through the PRI method

Area of Science:

• Materials Science
• Nanotechnology
• Polymer Chemistry

Background:

• Multifunctional micro- and nanoparticles are crucial for advancements in medicine, display materials, and cosmetics.
• Scalable production of uniformly sized, structured spherical particles is essential for these applications.

Purpose of the Study:

• To propose structure-tailored, multifunctional composite polymeric microspheres with tunable diameter size.
• To utilize a versatile and scalable in-fiber particle fabrication method based on Plateau-Rayleigh capillary instability.

Main Methods:

• In-fiber particle fabrication utilizing Plateau-Rayleigh capillary instability.
• Embedding CsPbBr3 (cesium lead bromide) into composite polymeric microspheres.
• Characterization using luminescence spectroscopy, X-ray diffraction, and magnetic manipulation tests.

Main Results:

• Maintained characteristic luminescence spectra shapes of CsPbBr3 after embedding.
• Achieved luminescence intensity stabilization at 85-90% of original photoluminescence.
• Increased photoluminescence lifetime by 9.03% compared to bare CsPbBr3.
• Confirmed no change in crystal structure of dopants post-encapsulation via X-ray diffraction.
• Demonstrated precise magnetic manipulation of Janus microspheres.

Conclusions:

• The in-fiber fabrication method successfully produced structure-tailored, multifunctional composite polymeric microspheres.
• The microspheres exhibit enhanced luminescence stability and tunable properties.
• These findings support the potential of these microspheres in various advanced technological applications.