Synthesis and optical properties of LiZr2(PO4)3: Eu3+, Dy3+ phosphor for display devices application

Abstract

The luminescent properties of prepared phosphor doped with rare-earth ions in LiZr2(PO4)3 were investigated in our study. Using a solution combustion reaction synthesis based on urea. We synthesized phosphors singly doped with Eu3+ and Dy3+ ions in LiZr2(PO4)3. The confirmation of the phase formation of sample was established through the powder X-ray diffraction pattern (XRD). To analyze the surface morphology of the phosphor by using scanning electron microscopy (SEM). Furthermore, investigations of photoluminescence properties were conducted for these phosphate-based materials. From the photoluminescence results, the Eu3+ doped displayed a vibrant red emission under 395 nm excitation in their photoluminescence spectra. On the other hand, the Dy3+ doped phosphors show strong emissions in both the blue (4F9/2 → 6H15/2) and yellow (4F9/2 → 6H13/2) regions under 349 nm excitation. The investigation involved analysing the characteristic emission color of the synthesized phosphor by using CIE 1931 chromaticity coordinates. Additionally, an estimation of the correlated color temperature (CCT) and color purity of the prepared sample value was conducted. Therefore, the present study suggests that the singly doped with Eu3+ and Dy3+ phosphor holds significant promise for applications in ultraviolet excited white light emitting diode (WLEDs).

Keywords

• Luminescent phosphor
• Combustion route
• Photoluminescence study
• SEM
• WLEDs