Luminescence Study of Eu3+ Ions Doped BaMoO4 Nanoparticles

  • Bharat, L. Krishna (Department of Electronics and Radio Engineering, Kyung Hee University) ;
  • Lee, Soo Hyun (Department of Electronics and Radio Engineering, Kyung Hee University) ;
  • Yu, Jae Su (Department of Electronics and Radio Engineering, Kyung Hee University)
  • Published : 2014.02.10

Abstract

Cost-effective, robust devices for solid-state lighting industry that converts electricity to light revolutionize the current lighting industry. Phosphor materials used in these devices should be synthesized in a low-cost and effective method for use in WLEDs. In this presentation, the synthesis of Eu3+ ions doped BaMoO4 phosphor samples by a facile synthesis process for red component of WLEDs will be shown. The tetragonal phase of the host lattice was substantiated by the X-ray diffraction patterns. The morphological studies were carried out by using a field-emission scanning electron microscope and transmission electron microscope. These confirmed the formation of a shuttle like particles with perpendicular protrusions in the middle of the particle. The photoluminescence (PL) properties exhibited good emission with a high asymmetry ratio when excited with ultraviolet B wavelengths (~ 280-315 nm). The cathodoluminescence (CL) spectra showed similar results to the PL spectra, indicating the rich red emission. The results suggest that this phosphor is a good material as red region component in the development of tri-band UV excitation based WLEDs.

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