Polyethylene Glycol Modified ErVO4 Nanocrystals: Magnetic and Optical Properties.

OpenAlex İngilizce

Spindle-like ErVO₄ nanocrystals were synthesized by precipitation in the presence of polyethylene glycol. Structural, optical and magnetic properties of as-prepared ErVO₄ nanoparticles with and without polyethylene glycol were compared by X-ray diffraction, transmission electron microscopy, infrared spectroscopy, thermal gravimetric analysis, vibrating sample magnetometer, and ultraviolet-visible-near infrared spectroscopy. Crystal structures were tetragonal zircon type ErVO₄ for both cases, and polyethylene glycol addition decreased average particle size from 70.69 to 38.78 nm, resulting more uniform particle formation. Polyethylene glycol proportion on ErVO₄ surfaces was 9.8%, and its inclusion increased ErVO₄ magnetization response to an external field as well as improving optical reflectivity, which is critical for nanophosphor use in biomedical fields.