Tunable optical beam focusing using static water droplets on an electrospun polymer fiber

Results in Optics, Journal Year: 2025, Volume and Issue: unknown, P. 100824 - 100824

Published: March 1, 2025

Language: Английский

Syntheses, characterization, luminescent and magnetic properties of polymer bifunctional fibers containing terbium complexes and Fe₃O₄ nanoparticles

Materials Research Express, Journal Year: 2024, Volume and Issue: 11(8), P. 085007 - 085007

Published: Aug. 1, 2024

Abstract The combination of electrospun nanofibers and nanoparticles is opening up potential in the field bifunctional materials. Herein, polystyrene (PS, Mw ≈ 260, 000), polyvinyl pyrrolidone (PVP, ≈1, 300, poly(methyl methacrylate) (PMMA, 350, 000) fibers containing Tb(acac) 3 phen complexes (acac: acetylacetone, phen: 1,10-phenanthroline) Fe O 4 (NPs) were synthesized by single-fluid electrospinning method. structure microfibers was characterized x-ray diffraction (XRD), scanning electron microscope (SEM), transmission (TEM), energy spectrum (EDAX) infrared (IR). average diameters PS, PVP PMMA are 1.65, 0.313 0.571 μm, respectively. TEM images indicated that NPs successfully incorporated into fibers. No absorption peaks terbium can be seen IR spectra luminescent magnetic properties also investigated. Due to change ligands environment, main excitation blue shifted about 5–8 nm Bifunctional exhibited characteristic emission Tb 3+ ions. polymers have no effect on fluorescence lifetimes complexes. All soft ferromagnetic. In addition, mechanical performances these studied. maximum stress, strain corresponding stress elastic modulus sample PVP-Fe-Tb largest, which indicates tensile performance best.

Language: Английский

Tunable Optical Beam Focusing Using Static Water Droplets on an Electrospun Polymer Fiber

Published: Jan. 1, 2024

Language: Английский