• Satisha. K.N.
• Dr. Chikkahanumantharayappa
• Dr. B.M. Manohara
• Dr. B.M. Nagabhushana

(1-9 mol %) Eu3+ doped CaSiO3 nanophosphors have been prepared by a solution combustion technique. The phosphors have been well characterized by powder X-ray diffraction (PXRD), Field emission scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy (FTIR) and UV Visible spectroscopy. PXRD patterns reveal monoclinic CaSiO3 phase which can be obtained for calcining the samples at 900 ◦C for 3 h and the average particle size of the prepared samples is in the range of (30-40) nm as calculated by Scherer’s formula and well mached with W-H plots. The FESEM micrographs show that crystallites are of agglomerated and irregular shape. Fourier infrared (FTIR) spectroscopic analysis confirms the purity of the samples. The energy band gap of all prepared samples are in the range of (4.0-4.2) eV obtain by diffused reflectance spectra (DRS). Photoluminescence spectra (PL) of the phosphors recorded for excitation wavelength at 316 nm show characteristic emission 615 nm of transition 5D0 →7F9 of the Eu3+ ions. Since CIE and CCT values are situated in the red regions, prepared phosphor might be useful in red component of WLED’s and can also be used in solid state display applications.

Solution Combustion; Excitation spectra; WLED; Display applications;

"Synthesis and luminescent properties of Eu3+ activated Calcium silicate nanophosphor ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.304-309, May-2019, Available :http://www.jetir.org/papers/JETIR1905240.pdf

"Synthesis and luminescent properties of Eu3+ activated Calcium silicate nanophosphor ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp304-309, May-2019, Available at : http://www.jetir.org/papers/JETIR1905240.pdf