Articles
  • Synthesis of green-emitting SrSi2O2N2 : boron-coated Eu2O3 phosphor with different crucible 
  • Y. H. Songa, E. J. Chunga, M. K. Jungb, K. Senthila, T. Masakia and D. H. Yoona,*
  • a School of Advanced Materials Science & Engineering, Sungkyunkwan University, Suwon 440-746, Korea b Hyosung Corporation, R & D Business Labs, Anyang 431-080, Korea
Abstract
To synthesize green-emitting SrSi2O2N2 phosphor, boron-coated Eu2O3 was used as an activator with different crucibles. This phosphor showed higher emission intensity than phosphor obtained using boron nitride and an alumina crucible. The synthesized green-emitting phosphors obtained using a carbon crucible were crystallized much better and showed higher emission intensity. The emission spectra typically showed a single broad green emission band corresponding to the 5d -> 4f transition of Eu2+ ions under excitation of 450 nm. This green-emitting phosphor is expected to be applied to next-generation white LEDs.

Keywords: SiSi2O2N2 : Eu2+ phosphor; White LEDs; Boron-coated Eu2O3

This Article

  • 2014; 15(3): 204-206

    Published on Jun 30, 2014