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Analytical photoluminescence analysis of Ba3Y1-x(BO3)3:XCe3+ [0.005 ≤ X ≤ 0.04] concerning the lighting sector

  • Antomi Saregar,
  • S. P. Hargunani,
  • A. Hadap,
  • V. R. Panse,
  • S. V. Dewalkar

摘要

Borate compounds of general formula M3Ln(BO3)3 (M = Ba, Sr and Ln = La–Lu, Y, Sc) are emerging phosphor materials for different applications in the lighting industry. The borate compound Ba3Y(BO3)3crystalizes in two different crystal structures, low temp. phase α-Ba3Y(BO3)3 with space group P-63 cm and high temp. phase β -Ba3Y(BO3)3 with space group R-3. In this work we synthesized the Ba3Y(BO3)3 powder crystal phosphor by solution-combustion-method. We used luminescent activators Ce3+ in different concentrations to study luminescent property in Ba3Y(BO3)3. Formation of low temperature phase α-Ba3Y(BO3)3 is confirmed by powder X-ray diffraction pattern. Element composition with percentage and crystal nature is confirmed by FE-SEM–EDS, FTIR characteristics study. The average particle size is estimated by using Debye-Scherer’s equation and W–H plot. Photoluminescence investigation shows that, Ba3Y1-x(BO3)3:xCe3+ when excited under near UV radiation exhibits blue emission. For 376 PLE it shows broad emission band with two peaks for 473 nm and 456 nm.1931-CIE co-ordinates and CCT are calculated for different concentrations of Ce3+ in this phosphor. So it is a cool source of blue light.