OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 25 — Dec. 5, 2011
  • pp: 25593–25601

2D SiNx photonic crystal coated Y3Al5O12:Ce3+ ceramic plate phosphor for high-power white light-emitting diodes

Hoo Keun Park, Jeong Rok Oh, and Young Rag Do  »View Author Affiliations


Optics Express, Vol. 19, Issue 25, pp. 25593-25601 (2011)
http://dx.doi.org/10.1364/OE.19.025593


View Full Text Article

Enhanced HTML    Acrobat PDF (1253 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

This paper reports the optical effects of a two-dimensional (2D) SiNx photonic crystal layer (PCL) on Y3Al5O12:Ce3+ (YAG:Ce) yellow ceramic plate phosphor (CPP) in order to enhance the forward emission of YAG:Ce CPP-capped high-power white light-emitting diodes (LEDs). By adding the 2D SiNx PCL with a 580 nm lattice constant, integrated yellow emission was improved by a factor of 1.72 compared to that of a conventional YAG:Ce CPP capped on a blue LED cup. This enhanced forward yellow emission is attributed to increased extraction of yellow emission light and improved absorption of blue excitation light through Bragg scattering and/or the leaky modes produced by the 2D PCLs. The introduction of 2D PCL can also reduce the wide variation of optical properties as a function of both ambient temperature and applied current, compared to those of a high-power YAG:Ce CPP-capped LED.

© 2011 OSA

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(230.3670) Optical devices : Light-emitting diodes
(220.4241) Optical design and fabrication : Nanostructure fabrication
(050.5298) Diffraction and gratings : Photonic crystals

ToC Category:
Optical Devices

History
Original Manuscript: August 10, 2011
Revised Manuscript: November 17, 2011
Manuscript Accepted: November 18, 2011
Published: November 30, 2011

Citation
Hoo Keun Park, Jeong Rok Oh, and Young Rag Do, "2D SiNx photonic crystal coated Y3Al5O12:Ce3+ ceramic plate phosphor for high-power white light-emitting diodes," Opt. Express 19, 25593-25601 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-25-25593


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. 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]
  2. S. Nakamura, M. Senoh, N. Iwasa, S.- Nagahama, T. Yamada, and T. Mukai; “Superbright green InGaN single-quantum-well-structure light-emitting diodes,” Jpn. J. Appl. Phys. 34(Part 2, No. 10B), L1332–L1335 (1995). [CrossRef]
  3. S. Nakamura, M. Senoh, N. Iwasa, and S. Nagahama, “High-power InGaN single-quantum-well-structure blue and violet light-emitting diodes,” Appl. Phys. Lett. 67(13), 1868–1870 (1995). [CrossRef]
  4. P. Schlotter, R. Schmidt, and J. Schneider, “Luminescence conversion of blue light emitting diodes,” Appl. Phys., A Mater. Sci. Process. 64(4), 417–418 (1997). [CrossRef]
  5. N. Narendran, Y. Gu, J. P. Freyssinier-Nova, and Y. Zhu, “Extracting phosphor-scattered photons to improve white LED efficiency,” Phys. Status Solidi A 202(6), R60–R62 (2005). [CrossRef]
  6. K. Yamada, Y. Imai, and K. Ishii, “Optical simulation of light source devices composed of blue LEDs and YAG phosphor,” J. Light Visual Environ. 27(2), 70–74 (2003). [CrossRef]
  7. S. Tanabe, S. Fujita, A. Sakamoto, and S. Yamamoto, “Glass ceramics for solid-state lighting,” Ceram. Trans. 173, 19–25 (2006).
  8. S. Fujita, A. Sakamoto, and S. Tanabe, “Luminescence characteristics of YAG glass-ceramic phosphor for white LED,” IEEE J. Sel. Top. Quantum Electron. 14(5), 1387–1391 (2008). [CrossRef]
  9. S. Fujita, S. Yoshihara, A. Sakamoto, S. Yamamoto, and S. Tanabe, “YAG glass–ceramic phosphors for white LED (I): development,” Proc. SPIE 5941, 594111 (2005). [CrossRef]
  10. S. Nishiura, S. Tanabe, K. Fujioka, and Y. Fujimoto, “Properties of transparent Ce:YAG ceramic phosphors for white LED,” Opt. Mater. 33(5), 688–691 (2011). [CrossRef]
  11. W. Zhao, S. Anghel, C. Mancini, D. Amans, G. Boulon, T. Epicier, Y. Shi, X. Q. Feng, Y. B. Pan, V. chani, and A. Yoshikawa, “Ce3+ dopant segregation in Y3Al5O12 optical ceramics,” Opt. Mater. 33(5), 684–687 (2011). [CrossRef]
  12. S. L. Jones, D. Kumar, R. K. Singh, and P. H. Holloway, “Luminescence of pulsed laser deposited Eu doped yttrium oxide films,” Appl. Phys. Lett. 71(3), 404–406 (1997). [CrossRef]
  13. R. K. Singh, Z. Chen, D. Kumar, K. Cho, and M. Ollinger, “Critical issues in enhancing brightness in thin film phosphors for flat-panel display applications,” Appl. Surf. Sci. 197-198, 321–324 (2002). [CrossRef]
  14. J. Y. Cho, Y. R. Do, and Y.-D. Huh, “Analysis of the factors governing the enhanced photoluminescence brightness of Li-doped Y2O3:Eu thin-film phosphors,” Appl. Phys. Lett. 89(13), 131915 (2006). [CrossRef]
  15. J. Lu, K. Ueda, H. Yagi, T. Yanagitani, Y. Akiyama, and A. A. Kaminskii, “Neodymium doped yttrium aluminum garnet (Y3Al5O12) nanocrystalline ceramics-a new generation of solid state laser and optical materials,” J. Alloy. Comp. 341(1-2), 220–225 (2002). [CrossRef]
  16. T. Yanagida, H. Takahashi, T. Ito, D. Kasama, T. Enoto, M. Sato, S. Hirakuri, M. Kokubun, K. Makishima, T. Yanagitani, H. Yagi, T. Shigeta, and T. Ito, “Evaluation of properties of YAG (Ce) ceramic scintillators,” IEEE Trans. Nucl. Sci. 52(5), 1836–1841 (2005). [CrossRef]
  17. Y. K. Lee, J. R. Oh, and Y. R. Do, “Enhanced extraction efficiency of Y2O3:Eu3+ thin-film phosphors coated with hexagonally close-packed polystyrene nanosphere monolayers,” Appl. Phys. Lett. 91(4), 041907 (2007). [CrossRef]
  18. K.-Y. Ko, K. N. Lee, Y. K. Lee, and Y. R. Do, “Enhanced light extraction from SrGa2S4:Eu2+ film phosphors coated with various sizes of polystyrene nanosphere monolayers,” J. Phys. Chem. C 112(20), 7594–7598 (2008). [CrossRef]
  19. J. R. Oh, H. K. Park, and Y. R. Do, “Brighter photoluminescence of 2D photonic crystal-assisted Y2O3:Eu3+ thick-film phosphors over screened powder phosphors,” Electrochem. Solid-State Lett. 12(6), J58–J60 (2009). [CrossRef]
  20. Y. K. Lee, J. R. Oh, Y. R. Do, and Y.-D. Huh, “Strong perturbation of the guided light within Y2O3:Eu3+ thin-film phosphors coated with two-dimensional air-hole photonic crystal arrays,” Appl. Phys. Lett. 91(23), 231908 (2007). [CrossRef]
  21. J. R. Oh, Y. K. Lee, H. K. Park, and Y. R. Do, “Effects of symmetry, shape, and structural parameters of two-dimensional SiNx photonic crystal on the extracted light from Y2O3:Eu3+ film,” J. Appl. Phys. 105(4), 043103 (2009). [CrossRef]
  22. K. Y. Ko, Y. K. Lee, H. K. Park, Y.-C. Kim, and Y. R. Do, “The variation of the enhanced photoluminescence efficiency of Y2O3:Eu3+ films with the thickness to the photonic crystal layer,” Opt. Express 16(8), 5689–5696 (2008). [CrossRef] [PubMed]
  23. N. Ganesh, W. Zhang, P. C. Mathias, E. Chow, J. A. N. T. Soares, V. Malyarchuk, A. D. Smith, and B. T. Cunningham, “Enhanced fluorescence emission from quantum dots on a photonic crystal surface,” Nat. Nanotechnol. 2(8), 515–520 (2007). [CrossRef] [PubMed]
  24. J. R. Oh, J. H. Moon, H. K. Park, J. H. Park, H. Chung, J. Jeong, W. Kim, and Y. R. Do, “Wafer-scale colloidal lithography based on self-assembly of polystyrene nanospheres and atomic layer deposition,” J. Mater. Chem. 20(24), 5025–5029 (2010). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited