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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 16 — Aug. 15, 2014
  • pp: 4887–4890

Narsarsukite-structure fluorosilicate as a blue component for white LEDs: structural and optical properties

Yoon Hwa Kim and Won Bin Im  »View Author Affiliations

Optics Letters, Vol. 39, Issue 16, pp. 4887-4890 (2014)

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A new blue-emitting phosphor, K2ScSi4O10F:Eu2+ (KSSOF:Eu2+), was synthesized through a solid-state reaction. The structural and optical properties of KSSOF:Eu2+ phosphor, in addition to its thermal quenching and fabrication of white LEDs (WLEDs), were investigated for the first time. The phosphor showed broad blue emission, with a maximum at 434nm under near-ultraviolet excitation due to 5d4f transition of the Eu2+ ion. The critical distance was calculated to be 12 Å using the critical concentration of Eu2+ and Dexter’s theory for energy transfer. WLEDs were fabricated by blending KSSOF:Eu2+, commercial Lu3Al5O12:Ce3+, and (Sr,Ca)AlSiN3:Eu2+ phosphors, showed a high color rendering index of 88 at a correlated color temperature of 4134 K under a forward bias current of 100 mA.

© 2014 Optical Society of America

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(250.5230) Optoelectronics : Photoluminescence

ToC Category:

Original Manuscript: June 23, 2014
Revised Manuscript: July 15, 2014
Manuscript Accepted: July 18, 2014
Published: August 14, 2014

Yoon Hwa Kim and Won Bin Im, "Narsarsukite-structure fluorosilicate as a blue component for white LEDs: structural and optical properties," Opt. Lett. 39, 4887-4890 (2014)

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  1. W. B. Im, N. George, J. Kurzman, S. Brinkley, A. Mikhailovsky, J. Hu, B. F. Chmelka, S. P. DenBaars, and R. Seshadri, Adv. Mater. 23, 2300 (2011). [CrossRef]
  2. T. Nishida, T. Ban, and N. Kobayashi, Appl. Phys. Lett. 82, 3817 (2003). [CrossRef]
  3. J. S. Kim, P. E. Jeon, Y. H. Park, J. C. Choi, H.-L. Park, G. C. Kim, and K. Tae Whan, Appl. Phys. Lett. 85, 3696 (2004). [CrossRef]
  4. U. Kolitsch and E. Tillmanns, Eur. J. Mineral. 16, 143 (2004). [CrossRef]
  5. R. Shannon, Acta Crystallogr. 32, 751 (1976). [CrossRef]
  6. R. A. Young, The Rietveld Method (Oxford University, 1995).
  7. W. B. Im, Y.-I. Kim, H. S. Yoo, and D. Y. Jeon, Inorg. Chem. 48, 557 (2009). [CrossRef]
  8. S. Shionoya, W. M. Yen, and T. Hase, Phosphor Handbook (CRC Press, 1999), Vol. 1.
  9. G. Blasse, Phys. Lett. A 28, 444 (1968). [CrossRef]
  10. D. L. Dexter, J. Chem. Phys. 21, 836 (1953). [CrossRef]
  11. G. Blasse, J. Solid State Chem. 62, 207 (1986). [CrossRef]
  12. S. Bhushan and M. V. Chukichev, J. Mater. Sci. Lett. 7, 319 (1988). [CrossRef]

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