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Fabrication of YAG : Er 3+ powders for the single crystal growth according to the synthetic temperature and flux concentration

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2015, 25(4), pp.166~171
  • DOI : 10.6111/JKCGCT.2015.25.4.166
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering

Cheol Woo Park 1,  Suk Hyun Kang 1,  Jae Hwa Park 1,  Kim, Hyun-Mi 1,  최재상 1,  Hyo Sang Kang 1,  Kwang Bo Shim 1

1한양대학교

Accredited

ABSTRACT

In this study, using solid-state and flux, Y3Al5O12 : Er 3+ (YAG : Er 3+ ) powders were successfully synthesized at low temperatures. To analyze the crystallinity of powders according to the synthesis or non-synthesis of powders and powder calcination temperatures, X-ray diffraction (XRD) was measured. In the case of pure YAG, when YAG was analyzed using the general solid-phase method, it was calcined for 12 hours at 1400 o C and pure YAG phase could be obtained. But when BaF2 was added to YAG, YAG was synthesized at lower temperature (1000 o C). It was thus found that the synthesis temperature could be lowered by about 400 o C. Also, when BaF2 with an optimal concentration was added to YAG : Er 3+ , the particle shape and size according to synthesis temperatures were surveyed, and corresponding luminous intensity was discussed.

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