Photoluminescence and Structural Study of Tb3+ doped Y2O3  Nanophosphor prepared by Homogenous Coprecipitation Method

Photoluminescence and Structural Study of Tb3+ doped Y2O3 Nanophosphor prepared by Homogenous Coprecipitation Method
Author(s):
Sanjay Rangnath Kale
Keywords:
Photoluminescence, homogenous coprecipitation, Y2O3:Tb3+
Abstract
Highly crystalline 1% to 5 % Tb3+ doped Y2O3 nanoparticle was synthesized by simple and cost effective homogenous coprecipitation method. Thus formed precipitate was dried at 100OC followed by calcination at 600OC for 2 hours and at 800OC for 2 hours. The cubic phase crystalline structure of Y2O3 and Y2O3:Tb3+ particles was confirmed by XRD analysis. The lattice parameter (d) and crystalline size (D) were found to be ~3.05 nm, and ~34.91 nm respectively. (JCPDS- 43-1036). The surface morphology with spherical particles, elemental analysis and composition of thus synthesized Y2O3:Tb3+ particles were proven by FESEM, EDX and FTIR investigations. Finally, the photoluminescence (PL) spectra shows one sharp and intense emission peak at 543 nm corresponding to 5D4 → 7F5 transition (bright green emission) of the phosphor particles.
Article Details
Unique Paper ID: 156582 Publication Volume & Issue: Volume 9, Issue 4 Page(s): 193 - 196
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