Ultrasound assisted synthesis of CaF2 :Eu3+ phosphor nanoparticles.

ABSTRACT

In this work, the optical and structural properties of ultrasonically prepared CaF2Eu3+ nanoparticles have been reported. Ultrasonically prepared CaF2Eu3+ phosphor shows orange, red emission bands at 591 nm and 612 nm, respectively, when it is excited by 394 light-emitting diode (LED) excitation wavelengths. Further phosphor materials are well characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and transmission electron microscopy (TEM) techniques to confirm the phase purity, metal oxygen (MO) bonding and crystallites size of the materials. Here synthesized materials show a tube-like structure under 100 nm resolution and 0.1 mol% is the best doping value of the europium ion (Eu3+ ) in calcium fluoride (CaF2 ) that shows highest intensity when prepared with an ultrasound assisted method.