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Energy Express

Energy Express

  • Editor: Bernard Kippelen
  • Vol. 19, Iss. S3 — May. 9, 2011
  • pp: A331–A339

Eu2+-activated silicon-oxynitride Ca3Si2O4N2: a green-emitting phosphor for white LEDs

Yi-Chen Chiu, Chien-Hao Huang, Te-Ju Lee, Wei-Ren Liu, Yao-Tsung Yeh, Shyue-Ming Jang, and Ru-Shi Liu  »View Author Affiliations


Optics Express, Vol. 19, Issue S3, pp. A331-A339 (2011)
http://dx.doi.org/10.1364/OE.19.00A331


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Abstract

The green-emitting phosphor Ca3Si2O4N2:Eu2+ was synthesized using a solid-state reaction. The luminescence properties, diffuse reflection spectrum, and thermal quenching were firstly studied, and a white light-emitting diode (wLED) was fabricated using the Eu2+-activated Ca3Si2O4N2 phosphor. Eu2+-doped Ca3Si2O4N2 exhibited a broad green emission band centered between 510 and 550 nm depending on the concentration of Eu2+. The optimal doping concentration of Eu2+ in Ca3Si2O4N2 was 1 mol%. The energy transfer between Eu2+ ions proceeds by an electric multipolar interaction mechanism, with a critical transfer distance of approximately 30.08 Å. A wLED with an color-rendering index Ra of 88.25 at a correlated color temperature of 6029 K was obtained by combining a GaN-based n-UV LED (380 nm) with the blue-emitting BaMgAl10O17:Eu2+, green-emitting Ca3Si2O4N2:Eu2+, and red-emitting CaAlSiN3:Eu2+ phosphors. The results present Ca3Si2O4N2:Eu2+ as an attractive candidate for use as a conversion phosphor for wLED applications.

© 2011 OSA

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(250.5230) Optoelectronics : Photoluminescence
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence

ToC Category:
Fluorescent and Luminescent Materials

History
Original Manuscript: March 31, 2011
Revised Manuscript: April 27, 2011
Manuscript Accepted: April 27, 2011
Published: April 28, 2011

Citation
Yi-Chen Chiu, Chien-Hao Huang, Te-Ju Lee, Wei-Ren Liu, Yao-Tsung Yeh, Shyue-Ming Jang, and Ru-Shi Liu, "Eu2+-activated silicon-oxynitride Ca3Si2O4N2: a green-emitting phosphor for white LEDs," Opt. Express 19, A331-A339 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-S3-A331


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References

  1. W. B. Im, Y. I. Kim, N. N. Fellows, H. Masui, G. A. Hirata, S. P. DenBaars, and R. Seshadri, “A yellow-emitting Ce3+ phosphor, La1−xCexSr2AlO5, for white light-emitting diodes,” Appl. Phys. Lett. 93(9), 091905 (2008). [CrossRef]
  2. T. Nishida, T. Ban, and N. Kobayashi, “High-color-rendering light sources consisting of a 350-nm ultraviolet light-emitting diode and three-basal-color phosphors,” Appl. Phys. Lett. 82(22), 3817–3819 (2003). [CrossRef]
  3. S. Nakamura, T. Mukai, and M. Senoh, “Candela-class high-brightness InGaN/AlGaN double-heterostructure blue-light-emitting diodes,” Appl. Phys. Lett. 64(13), 1687–1689 (1994). [CrossRef]
  4. S. Ye, F. Xiao, Y. X. Pan, Y. Y. Ma, and Q. Y. Zhang, “Phosphors in phosphor-converted white light-emitting diodes: Recent advances in materials, techniques and properties,” Mater. Sci. Eng. Rep. 71(1), 1–34 (2010). [CrossRef]
  5. H. A. Höppe, H. Lutz, P. Morys, W. Schnick, and A. Seilmeier, “Luminescence in Eu2+-doped Ba2Si5N8: fluorescence, thermoluminescence, and upconversion,” J. Phys. Chem. Solids 61(12), 2001–2006 (2000). [CrossRef]
  6. Y. Q. Li, G. de With, and H. T. Hintzen, “Luminescence properties of Ce3+-activated alkaline earth silicon nitride M2Si5N8 (M = Ca, Sr, Ba) materials,” J. Lumin. 116(1-2), 107–116 (2006). [CrossRef]
  7. R. J. Xie, N. Hirosaki, T. Suehiro, F. F. Xu, and M. Mitomo, “A Simple, Efficient Synthetic Route to Sr2Si5N8:Eu2+-Based Red Phosphors for White Light-Emitting Diodes,” Chem. Mater. 18(23), 5578–5583 (2006). [CrossRef]
  8. Y. Q. Li, G. de With, and H. T. Hintzen, “The effect of replacement of Sr by Ca on the structural and luminescence properties of the red-emitting Sr2Si5N8:Eu2+ LED conversion phosphor,” J. Solid State Chem. 181(3), 515–524 (2008). [CrossRef]
  9. K. S. Sohn, B. Lee, R. J. Xie, and N. Hirosaki, “A Rate Equation Model for Energy Transfer between Activators at Different Crystallographic Sites in Sr2Si5N8:Eu2+,” Opt. Lett. 34(21), 3427–3429 (2009). [CrossRef] [PubMed]
  10. K. Uheda, N. Hirosaki, Y. Yamamoto, A. Naito, T. Nakajima, and H. Yamamoto, “Luminescence Properties of a Red Phosphor, CaAlSiN3:Eu2+, for White Light-Emitting Diodes,” Electrochem. Solid-State Lett. 9(4), H22–H25 (2006). [CrossRef]
  11. H. Watanabe, H. Wada, K. Seki, M. Itou, and N. Kijima, “Synthetic Method and Luminescence Properties of SrxCa1−xAlSiN3:Eu2+ Mixed Nitride Phosphors,” J. Electrochem. Soc. 155(3), F31 (2008). [CrossRef]
  12. X. Piao, K. Machida, T. Horikawa, H. Hanzawa, Y. Shimomura, and N. Kijima, “Preparation of CaAlSiN3:Eu2+ phosphors by the self-propagating high-temperature synthesis and their luminescent properties,” Chem. Mater. 19(18), 4592–4599 (2007). [CrossRef]
  13. S. Lee and K. S. Sohn, “The effect of Inhomogeneous Broadening on Time-Resolved Photoluminescence in CaAlSiN3:Eu2+,” Opt. Lett. 35(7), 1004–1006 (2010). [CrossRef] [PubMed]
  14. Y. W. Jung, B. Lee, S. P. Singh, and K. S. Sohn, “Particle-swarm-optimization-assisted rate equation modeling of the two-peak emission behavior of non-stoichiometric CaAl(x)Si((7-3x)/4)N3:Eu2+ phosphors,” Opt. Express 18(17), 17805–17818 (2010). [CrossRef] [PubMed]
  15. Y. Q. Li, C. M. Fang, G. de With, and H. T. Hintzen, “Preparation,structure and photoluminescence properties of Eu2+ and Ce3+-doped SrYSi4N7,” J. Solid State Chem. 171 (12), 4687–4694 (2004). [CrossRef]
  16. Y. Q. Li, G. de With, and H. T. Hintzen, “Synthesis, structure, and luminescence properties of Eu2+ and Ce3+ activated BaYSi4N7,” J. Alloy. Comp. 385(1-2), 1–11 (2004). [CrossRef]
  17. C. Kulshreshtha, J. H. Kwak, Y. J. Park, and K. S. Sohn, “Photoluminescent and decay behaviors of Mn2+ and Ce3+ co-activated MgSiN2 phosphors for use in LED applications,” Opt. Lett. 34(6), 794–796 (2009). [CrossRef] [PubMed]
  18. R. S. Liu, Y. H. Liu, N. C. Bagkar, and S. F. Hua, “Enhanced luminescence of SrSi2O2N2:Eu2+ phosphors by codoping with Ce3+, Mn2+, and Dy3+ ions,” Appl. Phys. Lett. 91, 061119 (2007). [CrossRef]
  19. Y. Q. Li, A. C. A. Delsing, G. de With, and H. T. Hintzen, “Luminescence Properties of Eu2+-Activated Alkaline-Earth Silicon-Oxynitride MSi2O2-δN2+2/3δ (M = Ca, Sr, Ba): A Promising Class of Novel LED Conversion Phosphors,” Chem. Mater. 17(12), 3242–3248 (2005). [CrossRef]
  20. T. Suehiro, N. Hirosaki, R. J. Xie, and M. Mitomo, “Powder Synthesis of Ca-α‘-SiAlON as a Host Material for Phosphors,” Chem. Mater. 17(2), 308–314 (2005). [CrossRef]
  21. K. Sakuma, N. Hirosaki, R. J. Xie, Y. Yamamoto, and T. Suehiro, “Luminescence properties of (Ca,Y)-α-SiAlON:Eu phosphors,” Mater. Lett. 61(2), 547–550 (2007). [CrossRef]
  22. R. J. Xie, K. Kimoto, T. Sekiguchi, Y. Yamamoto, T. Suehiro, M. Mitomo, and N. Hirosaki, “Characterization and properties of green-emitting β-SiAlON:Eu2+ powder phosphors for white light-emitting diodes,” Appl. Phys. Lett. 86(21), 211905 (2005). [CrossRef]
  23. Z. K. Huang, W. Y. Sun, and D. S. Yan, “Phase relations of the Si3N4-AIN-CaO system,” J. Mater. Sci. Lett. 4(3), 255–259 (1985). [CrossRef]
  24. A. Sharafat, “Preparation, characterization and properties of nitrogen rich glasses in alkaline earth-Si-O-N systems,” Ph. D. Thesis, Stockholm University, (2009).
  25. W. R. Liu, Y. C. Chiu, C. Y. Tung, Y. T. Yeh, S. M. Jang, and T. M. Chen, “A Study on the Luminescence Properties of CaAlBO4:RE3+ (RE = Ce, Tb, and Eu) Phosphors,” J. Electrochem. Soc. 155(9), J252–J255 (2008). [CrossRef]
  26. P. Mondal and J. W. Jeffery, “The crystal structure of tricalcium aluminate, Ca3Al2O6,” Acta Crystallogr. B 31(3), 689–697 (1975). [CrossRef]
  27. R. D. Shannon, “Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides,” Acta Crystallogr. A 32(5), 751–767 (1976). [CrossRef]
  28. G. Blasse, “Energy transfer in oxidic phosphors,” Philips Res. Rep. 24, 131 (1969).
  29. D. L. Dexter, “A Theory of Sensitized Luminescence in Solids,” J. Chem. Phys. 21(5), 836–850 (1953). [CrossRef]
  30. L. G. Van Uitert, “Characterization of Energy Transfer Interactions between Rare Earth Ions,” J. Electrochem. Soc. 114(10), 1048–1053 (1967). [CrossRef]

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