Structural and luminescence studies of titanium co‐doped SrY₂O₄:Eu phosphors

Abstract

Here, europium-doped (1 to 11 mol%) and titanium (1 to 5 mol%)co-doped SrY 2 O 4 : Eu phosphors were synthesized using solid-state reaction method. The synthesized samples were characterized using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy (FTIR), and photoluminescence (PL) techniques for structural, morphological, functional group, and photoluminescence studies, respectively. XRD patterns confirmed the formation of pure phase SrY 2 O 4 at 1300 C and structural parameters were further determined using Rietveld refinement. FESEM micrographs revealed that doped and co-doped samples had different morphological features. All the samples were excited at ultraviolet light excitation and emission spectra consisted of peaks corresponding to the Eu ions. The maximum PL intensity was observed for 9 mol% of Eu ions and 3 mol% codoping of Ti ions. The synthesized phosphors have potential applications in optoelectronics and display devices.

A Novel Single‐Phase White Phosphor Gd7O6(BO3)(PO4)2:Dy3+

“…When θ takes the values of 6, 8, and 10, they represent the interactions between dipole-dipole (d-d), dipole-quadrupole (d-q), and quadrupole-quadrupole (q-q) interactions, respectively. [15,16] Linear regression was conducted on lg (x) and lg (I/x) in Figure 2c, yielding an adjusted R-squared of 0.99743 and a slope of À1.488. θ is 4.464, which is close to 6.…”

Optimizing the luminescence efficiency of an europium (Eu3+) doped SrY2O4 phosphor for flexible display and lighting applications

“…With the excitation of 254 nm (UV region), europium ions are useful for light emitting phosphor and exible display applications. [24][25][26][27][28][29][30][31][32][33][34][35][36] In this paper, we describe how to easily make new Eu 3+ doped SrY 2 O 4 phosphors, which may be utilized to improve the attractive performance of intelligent (smart) materials for exible displaying applications. SYO:Eu phosphors emit red light when exposed to UV radiation.…”