Synthesis and photoluminescence properties of CaSiO3:Dy3+phosphor

The present paper reports the Synthesis and photoluminescence properties of rare-earth ion (RE3+) doped Calcium Silicate Phosphors. The Dysprosium Oxide (Dy3+) was used as rare-earth ion-doped.  The phosphor is prepared by using the Conventional Solid-state reaction method were heated at 1200oC for 3 hrs. The received cakes are grounded for 30 minutes each. The phosphors are prepared and the received powder is subjected to Powder X-ray diffraction (PXRD) patterns revealed that the phosphors are crystalline and can be indexed to a monoclinic phase. Scanning electron micrographs (SEM) exhibited faceted plates and angular crystals of different sizes with a porous nature. Photoluminescence properties (PL) of the Dy3+doped CaSiO3 phosphors were synthesized and analyzed. The photoluminescence emission spectra were peaks at 483,573 and 610nm corresponding to Dy3+ were assigned as 4F9/2 → 6H15/2, 4F9/2 → 6H13/2 and 4F9/2 → 6H11/2 transitions respectively, and dominated by the Dy3+ 4F9/2 → 6H13/2 hyperfine transition. Experimental results revealed that the luminescence intensity was affected by both heat treatment and the concentration of Dy3+ (1–5 mol%) in the CaSiO3 as a single host. The CIE (1931-Chart) colour coordinates blue and yellow light emission were analyzed. The following section discusses and the experimental results are mentioned in these phosphors. The present Phosphor can act as a host for blue light emission in many display devices and technological applications.