Synthesis and Photoluminescent Studies of SrY2O4: Eu/Ti Phosphors

Abstract

In the present era, the demand of optoelectronic and display devices has increased enormously. For this purpose, phosphors with desirable emission characteristics are synthesized at a larger scale. The rare-earth doped phosphors have attracted a great attention owing their better emission properties over the non-rare earth materials. In the quest of synthesizing phosphors with better emission properties, the present work reports the synthesis and photoluminescence features of europium (Eu) doped SrY2O4 phosphors. It is a red light emitting phosphors and finds potential applications in the field emission displays. A series of Eu doped (1 to 11 mol%) SrY2O4 are synthesized via solid-state method. The structural and photoluminescent properties are synthesized via X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and photoluminescence (PL) technique. The quenching mechanism and type of interactions involved are studied via applying Dexter and Blasse’s theory. The photometric parameters are calculated via determining the CIE coordinates. Further, the SrY2O4:Eu samples are co-doped with titanium (Ti) to study its effect on the emission characteristics. All the results are discussed in detail.