Research progress on electrospinning fluorescent nanofibers based on rare earth complex

In recent years, rare earth complexes have been widely studied for their unique luminescent properties, large Stokes shift, long fluorescence lifetime, and high luminescent quantum efficiency. Due to the small absorption area of lanthanide ions in the ultraviolet region, their absorption of light is weak. To enhance its luminescence, excitation can be improved by coordinating with organic ligands and subsequently transferring energy from the ligand tristate to the coordinating metal ions. Electrospinning is a processing method that combines rare earth complexes with matrix materials easily to obtain fluorescent fiber membranes with high fluorescent efficiency, high porosity, controllable morphology, and stable mechanical properties. In this paper, we summarize the applications of fluorescent nanofibers in detection, as well as in solar cells and beyond. Then, we focused on the luminescence mechanism of rare earth elements and rare earth complexes, and discussed the structure of fluorescent nanofibers based on rare earth complexes. Finally, the future direction and innovation of development of electrospinning fluorescent nanofibers are summarized and prospected.