OSA's Digital Library

Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 2, Iss. 7 — Jul. 1, 2012
  • pp: 962–968

Synthesis and characterization of white light emitting CaxSr1-xAl2O4:Tb3+,Eu3+ phosphor for solid state lighting

Samy K. K. Shaat, Hendrik C. Swart, and Odireleng M. Ntwaeaborwa  »View Author Affiliations

Optical Materials Express, Vol. 2, Issue 7, pp. 962-968 (2012)

View Full Text Article

Enhanced HTML    Acrobat PDF (1492 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



A white light emitting CaxSr1-xAl2O4:Tb3+;Eu3+ phosphor was synthesized by a combustion method using metal nitrates as precursors and urea as a fuel. The X-ray diffraction patterns from the samples showed phases associated with monoclinic structures of CaAl2O4 and SrAl2O4. White photoluminescence with the CIE coordinates (x = 0.343, y = 0.325) was observed when the phosphor was optically-excited at 227 nm using a monochromatized xenon lamp. The white photoluminescence was a result of the combination of blue and green line emissions from Tb3+, and red line emission from Eu3+. The structure and photoluminescence properties of this phosphor are reported.

© 2012 OSA

OCIS Codes
(160.5690) Materials : Rare-earth-doped materials
(250.5230) Optoelectronics : Photoluminescence
(160.4236) Materials : Nanomaterials

ToC Category:

Original Manuscript: June 1, 2012
Revised Manuscript: June 17, 2012
Manuscript Accepted: June 20, 2012
Published: June 21, 2012

Samy K. K. Shaat, Hendrik C. Swart, and Odireleng M. Ntwaeaborwa, "Synthesis and characterization of white light emitting CaxSr1-xAl2O4:Tb3+,Eu3+ phosphor for solid state lighting," Opt. Mater. Express 2, 962-968 (2012)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. Y. Song, G. Jia, M. Yang, Y. Huang, H. You, and H. Zhang, “Sr3Al2O5Cl2:Ce3+,Eu2+: a potential tunable yellow-to-white-emitting phosphor for ultraviolet light emitting diodes,” Appl. Phys. Lett.94(9), 091902 (2009). [CrossRef]
  2. J. S. Kim, P. E. Jeon, Y. H. Park, J. C. Choi, H. L. Park, G. C. Kim, and T. W. Kim, “White-light generation through ultraviolet-emitting diode and white-emitting phosphor,” Appl. Phys. Lett.85(17), 3696–3698 (2004). [CrossRef]
  3. R. M. Farrell, E. C. Young, F. Wu, S. P. DenBaars, and J. S. Speck, “Materials and growth issues for high-performance nonpolar and semipolar light-emitting devices,” Semicond. Sci. Technol. 27(2), 024001 (2012). [CrossRef]
  4. H. Zhao, G. Liu, J. Zhang, J. D. Poplawsky, V. Dierolf, and N. Tansu, “Approaches for high internal quantum efficiency green InGaN light-emitting diodes with large overlap quantum wells,” Opt. Express19(S4Suppl 4), A991–A1007 (2011). [CrossRef] [PubMed]
  5. C. Wetzel and T. Detchprohm, “Wavelength-stable rare earth-free green light-emitting diodes for energy efficiency,” Opt. Express19(S4Suppl 4), A962–A971 (2011). [CrossRef] [PubMed]
  6. H. Zhao, G. Liu, and N. Tansu, “Analysis of InGaN-delta-InN quantum wells for light-emitting diodes,” Appl. Phys. Lett.97(13), 131114 (2010). [CrossRef]
  7. J. Zhang and N. Tansu, “Improvement in spontaneous emission rates for InGaN quantum wells on ternary InGaN substrate for light-emitting diodes,” J. Appl. Phys.110(11), 113110 (2011). [CrossRef]
  8. T. Akasaka, H. Gotoh, Y. Kobayashi, and H. Yamamoto, “Extremely narrow violet photoluminescence line from ultrathin InN single quantum well on step-free GaN surface,” Adv. Mater., doi:. [CrossRef]
  9. J. Zhang, H. Zhao, and N. Tansu, “Effect of crystal-field split-off hole and heavy-hole bands crossover on gain characteristics of high Al-content AlGaN quantum well lasers,” Appl. Phys. Lett.97(11), 111105 (2010). [CrossRef]
  10. J. Zhang, H. Zhao, and N. Tansu, “Large optical gain AlGaN-delta-GaN quantum wells laser active regions in mid- and deep-ultraviolet spectral regimes,” Appl. Phys. Lett.98(17), 171111 (2011). [CrossRef]
  11. Y. Taniyasu and M. Kasu, “Polarization property of deep-ultraviolet light emission from C-plane AlN/GaN short-period superlattices,” Appl. Phys. Lett.99(25), 251112 (2011). [CrossRef]
  12. E. Francesco Pecora, W. Zhang, A. Yu. Nikiforov, L. Zhou, D. J. Smith, J. Yin, R. Paiella, L. Dal Negro, and T. D. Moustakas, “Sub-250 nm room-temperature optical gain from AlGaN/AlN multiple quantum wells with strong band-structure potential fluctuations,” Appl. Phys. Lett.100(6), 061111 (2012). [CrossRef]
  13. X. Rao, Q. Huang, X. Yang, Y. Cui, Y. Yang, C. Wu, B. Chen, and G. Qian, “Color tunable and white light emitting Tb3+ and Eu3+ doped lanthanide metal–organic framework materials,” J. Mater. Chem.22(7), 3210–3214 (2012). [CrossRef]
  14. H.-C. Kuo, C.-W. Hung, H.-C. Chen, K.-J. Chen, C.-H. Wang, C.-W. Sher, C.-C. Yeh, C.-C. Lin, C.-H. Chen, and Y.-J. Cheng, “Patterned structure of remote phosphor for phosphor-converted white LEDs,” Opt. Express19(S4Suppl 4), A930–A936 (2011). [CrossRef] [PubMed]
  15. C. Liu, Y. Wang, Y. Hu, R. Chen, and F. Liao, “Adjusting luminescence properties of SrxCa1−xAl2O4:Eu2+, Dy3+ phosphors by Sr/Ca ratio,” J. Alloy. Comp.470(1-2), 473–476 (2009). [CrossRef]
  16. S. H. Ju, S. G. Kim, J. C. Choi, H. L. Park, S.-I. Mho, and T. W. Kim, “Determination of the solid solubility of SrAl2O4 in CaAl2O4 through crystal field-dependent Eu2+ signatures,” Mater. Res. Bull.34(12-13), 1905–1909 (1999). [CrossRef]
  17. D. Geng, G. Li, M. Shang, C. Peng, Y. Zhang, Z. Cheng, and J. Lin, “Nanocrystalline CaYAlO4:Tb3+/Eu3+ as promising phosphors for full-color field emission displays,” Dalton Trans.41(10), 3078–3086 (2012). [CrossRef] [PubMed]
  18. R. Martínez-Martínez, E. Álvarez, A. Speghini, C. Falcony, and U. Caldiño, “Cold white light generation from hafnium oxide films activated with Ce3+, Tb3+, and Mn2+ ions,” J. Mater. Res.25(03), 484–490 (2010). [CrossRef]
  19. D. Wang, P. Yang, Z. Cheng, W. Wang, Z. Hou, Y. Dai, C. Li, and J. Lin, “Patterning of Gd2(WO4)3:Ln3+ (Ln=Eu, Tb) luminescent films by microcontact printing route,” J. Colloid Interface Sci.365(1), 320–325 (2012). [CrossRef] [PubMed]
  20. A. Potdevin, G. Chadeyron, D. Boyer, B. Caillier, and R. Mahiou, “Sol–gel based YAG:Tb3+ or Eu3+ phosphors for application in lighting sources,” J. Phys. D.38(17), 3251–3260 (2005). [CrossRef]
  21. P. Zhu, Q. Zhu, H. Zhu, H. Zhao, B. Chen, Y. Zhang, X. Wang, and W. Di, “Effect of SiO2 coating on photoluminescence and thermal stability of BaMgAl10O17: Eu2+ under VUV and UV excitation,” Opt. Mater.30(6), 930–934 (2008). [CrossRef]
  22. S. Fan, C. Yu, D. He, X. Wang, and L. Hu, “Tunable white light emission from γ-irradiated Ag/Eu co-doped phosphate glass phosphor,” Opt. Mater. Express2(6), 765–770 (2012). [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.


Fig. 1 Fig. 2 Fig. 3
Fig. 4 Fig. 5

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited