Wet chemically synthesized optical investigation of Tb3+/Eu3+ activated/co-activated BaTiO3 phosphors by energy transfer mechanism

Author : Avinash V. Bharati

Abstract :In last few years rare earth activated inorganic phosphors comes into trend in the field of display devices. In the proposed research article, Tb3+, Eu3+ activated/co-activated BaTiO3 phosphor prepared by wet chemical method. Through the use of XRD and Rietveld refinement, the phase identity and crystal structure of produced phosphor are examined. SEM is used to examine the morphological analysis and elemental analysis of the suggested phosphor in conjunction with elemental analysis of the sample. In photoluminescence spectra (PL), Under 265 nm, 395 nm and 465 nm excitation, the synthesized Tb3+, Eu3+ activated/co-activated BaTiO3 phosphors exhibited an orange emission peak located 595 nm and a red emission peak located 614 nm due to the 5D0 →7F1 and 5D0 →7F2 transitions of Eu3+ ions while doping of Tb3+ ions gives emission in green region. On satisfying the spectral overlap criteria, the codoping of both the rare earth ions is done in the host matrix and resultant PL shows that the sample shows color tunability from green to red region. These all results confirm that the prepared phosphor is potential candidate for WLEDs and display applications

Keywords :Wet chemical, lamp phosphor, LEDs, color tunability, energy transfer.

Conference Name :International Conference on Chemical Engineering and Technology (ICCET-25)

Conference Place Melbourne, Australia

Conference Date 15th Sep 2025