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Journal of the Electrochemical Society, Vol.159, No.5, J148-J152, 2012
Synthesis and Photoluminescence Properties of Green-Emitting Ba3Si6O12N2 Oxynitride Phosphor Using Boron-Coated Eu2O3 for White LED Applications
Highly efficient Ba3Si6O12N2 green-emitting phosphors using boron-coated Eu2O3 were synthesized by a gas reduction nitridation method under flowing NH3 gas. X-ray diffraction patterns showed that the synthesized phosphor was a pure phase of Ba3Si6O12N2. The Ba3Si6O12N2 green-emitting phosphors synthesized by modification of an alumina boat were crystallized much better as well as showed higher emission intensity. The emission spectra showed a typically broad green emission band attributed to the 4f(6)5d-->4f(7) electronic transition of Eu2+ ions under excitation at 405 nm. The green-emitting Ba3Si6O12N2 phosphors that were synthesized using boron-coated Eu2O3 by modification of an alumina boat could be applied to generate white light emitting diodes. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.047205jes] All rights reserved.