Abstract

The nanocrystalline SrY2O4:Eu3+ was prepared by a poly(vinyl alcohol) (PVA)+glycine-assist combustion method. The results of x-ray diffraction indicate that the resulting SrY2O4:Eu3+ nanocrystals have much broader and less intense peaks compared with those in bulk material. The charge-transfer bands in SrY2O4:Eu3+ nanocrystals shift to higher energies in contrast to those in bulk material. The spectral results revealed that in bulk SrY2O4:Eu3+, the Eu3+ ions occupied three nonequivalent sites, with one at the Sr site: one at the Y(1) site and another at the Y(2) site, while in nanocrystalline SrY2O4:Eu3+, the Eu3+ ions occupied only two nonequivalent sites; one at the Y(1) site and the other at the Y(2) site. Finally, by theoretical calculation and analysis, the analyzed results are in reasonable agreement with our experimental results.

© 2006 Optical Society of America

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  1. A. D. Yoffe, "Low-dimensional systems: quantum size effects and electronic properties of semiconductor microcrystallites (zero-dimensional systems) and some quasi-two-dimensional systems," Adv. Phys. 42, 173-262 (1993).
    [CrossRef]
  2. R. N. Bhargava, D. Hong, X. Gallagher, and A. Nurmikko, "Optical properties of manganese-doped nanocrystals of ZnS," Phys. Rev. Lett. 72, 416-419 (1994).
    [CrossRef] [PubMed]
  3. D. K. Willianms, B. Bihari, B. M. Tissue, and J. M. Machale, "Preparation and fluorescence spectroscopy of bulk monoclinic Eu3+:Y2O3 and comparison to Eu3+:Y2O3 nanocrystals," J. Phys. Chem. B 102, 916-920 (1998).
    [CrossRef]
  4. Z. Qi, C. Shi, W. Zhang, and T. Hu, "Local structure and luminescence of nanocrystalline Y2O3:Eu," Appl. Phys. Lett. 81, 2857-2859 (2002).
    [CrossRef]
  5. G. Blasse, "On the Eu3+ fluorescence of mixed metal oxides. IV. The photoluminescent efficiency of Eu3+-activated oxides," J. Chem. Phys. 45, 2356-2360 (1966).
    [CrossRef]
  6. W. L. Xu, W. Y. Jia, I. Revira, K. Monge, and H. M. Liu, "Optical properties of multiple sites of Eu3+ in SrY2O4 single-crystal fibers," J. Electrochem. Soc. 148, H176-H178 (2001).
    [CrossRef]
  7. Z. Wei, L. Sun, C. Liao, J. Yin, X. Jiang, C. Yan, and S. Lü, "Size-dependent chromaticity in YBO3:Eu nanocrystals: correlation with microstructure and site symmetry," J. Phys. Chem. B 106, 10610-10617 (2002).
    [CrossRef]
  8. E. T. Goldburt, B. Kulkarni, R. N. Bhargava, T. Taylor, and M. Libera, "Size-dependent efficiency in Tb-doped Y2O3 nanocrystalline phosphor," J. Lumin. 72-74, 190-192 (1997).
    [CrossRef]
  9. L. Zhou, J. Shi, and M. Gong, "Preparation of SrY2O4:Eu3+(R=Y,Lu) phosphor and its photoluminescence properties," Mater. Lett. 59, 2079-2084 (2005).
    [CrossRef]
  10. L. Sun, J. Yao, C. Liu, C. Liao, and C. Yan, "Rare earth activated nanosized oxide phosphors: synthesis and optical properties," J. Lumin. 87-89, 447-450 (2000).
    [CrossRef]
  11. T. Yao, G. Zhao, W. Zhang, and S. Xia, "Combustion synthesis and photoluminescence of nanocrystalline Y2O3:Eu phosphors," Mater. Res. Bull. 32, 501-506 (1997).
    [CrossRef]
  12. G. Tessari, M. Bettinelli, A. Speghini, G. Pozza, L. E. Depero, and L. Sangaletti, "Synthesis and optical properties of nanosized powders: lanthanide-doped Y2O3," Appl. Surf. Sci. 144-145, 686-689 (1999).
    [CrossRef]
  13. L. Zhou, J. Shi, and M. Gong, "Red phosphor SrY2O4:Eu3+ synthesized by the sol-gel method," J. Lumin. 113, 285-290 (2005).
    [CrossRef]
  14. V. H. Müller-Buschbaum, "Zur Kenntnis von SrY2O4," Z. Anorg. Allg. Chem. 358, 138-146 (1968).
    [CrossRef]
  15. G. Blasse and B. Grabmaier, Luminescent Materials (Springer, 1994).
    [CrossRef]
  16. S.-J. Park, C.-H. Park, B.-Y. Yu, H.-S. Bae, C.-H. Kim, and C.-H. Pyun, "Structure and luminescence of SrY2O4:Eu," J. Electrochem. Soc. 146, 3903-3906 (1999).
    [CrossRef]
  17. Z. Fu, S. Zhou, Y. Yu, and S. Zhang, "Photoluminescence properties and analysis of spectral structure of Eu3+-doped SrY2O4," J. Phys. Chem. B 109, 23320-23325 (2005).
    [CrossRef] [PubMed]
  18. A. Huignard, T. Gacoin, and J.-P. Boilot, "Synthesis and luminescence properties of colloidal YVO4:Eu phosphors," Chem. Mater. 12, 1090-1094 (2000).
    [CrossRef]
  19. P. Dorenbos, "The Eu3+ charge transfer energy and the relation with the band gap of compounds," J. Lumin. 111, 89-104 (2005).
    [CrossRef]
  20. J. S. Shi and S. Y. Zhang, "Predicting the position of the spin-forbidden band for Tb3+ ions in crystal hosts," J. Phys.: Condens. Matter 15, 4101-4107 (2003).
    [CrossRef]
  21. J. S. Shi, Z. J. Wu, S. H. Zhou, and S. Y. Zhang, "Dependence of crystal field of 5d levels on hosts in the halide crystals," Chem. Phys. Lett. 380, 245-250 (2003).
    [CrossRef]
  22. J. S. Shi and S. Y. Zhang, "Barycenter of energy of lanthanide 4fN−15d configuration in inorganic crystals," J. Phys. Chem. B 108, 18845-18849 (2004).
    [CrossRef]
  23. S. Y. Zhang, "Investigation of chemical bonds on complex crystals," Chin. J. Chem. Phys. 4, 109-115 (1991).
  24. Z. J. Wu and S. Y. Zhang, "Semiempirical method for the evaluation of bond covalency in complex crystals," J. Phys. Chem. A 103, 4270-4274 (1999).
    [CrossRef]

2005

L. Zhou, J. Shi, and M. Gong, "Preparation of SrY2O4:Eu3+(R=Y,Lu) phosphor and its photoluminescence properties," Mater. Lett. 59, 2079-2084 (2005).
[CrossRef]

L. Zhou, J. Shi, and M. Gong, "Red phosphor SrY2O4:Eu3+ synthesized by the sol-gel method," J. Lumin. 113, 285-290 (2005).
[CrossRef]

Z. Fu, S. Zhou, Y. Yu, and S. Zhang, "Photoluminescence properties and analysis of spectral structure of Eu3+-doped SrY2O4," J. Phys. Chem. B 109, 23320-23325 (2005).
[CrossRef] [PubMed]

P. Dorenbos, "The Eu3+ charge transfer energy and the relation with the band gap of compounds," J. Lumin. 111, 89-104 (2005).
[CrossRef]

2004

J. S. Shi and S. Y. Zhang, "Barycenter of energy of lanthanide 4fN−15d configuration in inorganic crystals," J. Phys. Chem. B 108, 18845-18849 (2004).
[CrossRef]

2003

J. S. Shi and S. Y. Zhang, "Predicting the position of the spin-forbidden band for Tb3+ ions in crystal hosts," J. Phys.: Condens. Matter 15, 4101-4107 (2003).
[CrossRef]

J. S. Shi, Z. J. Wu, S. H. Zhou, and S. Y. Zhang, "Dependence of crystal field of 5d levels on hosts in the halide crystals," Chem. Phys. Lett. 380, 245-250 (2003).
[CrossRef]

2002

Z. Qi, C. Shi, W. Zhang, and T. Hu, "Local structure and luminescence of nanocrystalline Y2O3:Eu," Appl. Phys. Lett. 81, 2857-2859 (2002).
[CrossRef]

Z. Wei, L. Sun, C. Liao, J. Yin, X. Jiang, C. Yan, and S. Lü, "Size-dependent chromaticity in YBO3:Eu nanocrystals: correlation with microstructure and site symmetry," J. Phys. Chem. B 106, 10610-10617 (2002).
[CrossRef]

2001

W. L. Xu, W. Y. Jia, I. Revira, K. Monge, and H. M. Liu, "Optical properties of multiple sites of Eu3+ in SrY2O4 single-crystal fibers," J. Electrochem. Soc. 148, H176-H178 (2001).
[CrossRef]

2000

A. Huignard, T. Gacoin, and J.-P. Boilot, "Synthesis and luminescence properties of colloidal YVO4:Eu phosphors," Chem. Mater. 12, 1090-1094 (2000).
[CrossRef]

L. Sun, J. Yao, C. Liu, C. Liao, and C. Yan, "Rare earth activated nanosized oxide phosphors: synthesis and optical properties," J. Lumin. 87-89, 447-450 (2000).
[CrossRef]

1999

G. Tessari, M. Bettinelli, A. Speghini, G. Pozza, L. E. Depero, and L. Sangaletti, "Synthesis and optical properties of nanosized powders: lanthanide-doped Y2O3," Appl. Surf. Sci. 144-145, 686-689 (1999).
[CrossRef]

S.-J. Park, C.-H. Park, B.-Y. Yu, H.-S. Bae, C.-H. Kim, and C.-H. Pyun, "Structure and luminescence of SrY2O4:Eu," J. Electrochem. Soc. 146, 3903-3906 (1999).
[CrossRef]

Z. J. Wu and S. Y. Zhang, "Semiempirical method for the evaluation of bond covalency in complex crystals," J. Phys. Chem. A 103, 4270-4274 (1999).
[CrossRef]

1998

D. K. Willianms, B. Bihari, B. M. Tissue, and J. M. Machale, "Preparation and fluorescence spectroscopy of bulk monoclinic Eu3+:Y2O3 and comparison to Eu3+:Y2O3 nanocrystals," J. Phys. Chem. B 102, 916-920 (1998).
[CrossRef]

1997

E. T. Goldburt, B. Kulkarni, R. N. Bhargava, T. Taylor, and M. Libera, "Size-dependent efficiency in Tb-doped Y2O3 nanocrystalline phosphor," J. Lumin. 72-74, 190-192 (1997).
[CrossRef]

T. Yao, G. Zhao, W. Zhang, and S. Xia, "Combustion synthesis and photoluminescence of nanocrystalline Y2O3:Eu phosphors," Mater. Res. Bull. 32, 501-506 (1997).
[CrossRef]

1994

R. N. Bhargava, D. Hong, X. Gallagher, and A. Nurmikko, "Optical properties of manganese-doped nanocrystals of ZnS," Phys. Rev. Lett. 72, 416-419 (1994).
[CrossRef] [PubMed]

1993

A. D. Yoffe, "Low-dimensional systems: quantum size effects and electronic properties of semiconductor microcrystallites (zero-dimensional systems) and some quasi-two-dimensional systems," Adv. Phys. 42, 173-262 (1993).
[CrossRef]

1991

S. Y. Zhang, "Investigation of chemical bonds on complex crystals," Chin. J. Chem. Phys. 4, 109-115 (1991).

1968

V. H. Müller-Buschbaum, "Zur Kenntnis von SrY2O4," Z. Anorg. Allg. Chem. 358, 138-146 (1968).
[CrossRef]

1966

G. Blasse, "On the Eu3+ fluorescence of mixed metal oxides. IV. The photoluminescent efficiency of Eu3+-activated oxides," J. Chem. Phys. 45, 2356-2360 (1966).
[CrossRef]

Bae, H.-S.

S.-J. Park, C.-H. Park, B.-Y. Yu, H.-S. Bae, C.-H. Kim, and C.-H. Pyun, "Structure and luminescence of SrY2O4:Eu," J. Electrochem. Soc. 146, 3903-3906 (1999).
[CrossRef]

Bettinelli, M.

G. Tessari, M. Bettinelli, A. Speghini, G. Pozza, L. E. Depero, and L. Sangaletti, "Synthesis and optical properties of nanosized powders: lanthanide-doped Y2O3," Appl. Surf. Sci. 144-145, 686-689 (1999).
[CrossRef]

Bhargava, R. N.

E. T. Goldburt, B. Kulkarni, R. N. Bhargava, T. Taylor, and M. Libera, "Size-dependent efficiency in Tb-doped Y2O3 nanocrystalline phosphor," J. Lumin. 72-74, 190-192 (1997).
[CrossRef]

R. N. Bhargava, D. Hong, X. Gallagher, and A. Nurmikko, "Optical properties of manganese-doped nanocrystals of ZnS," Phys. Rev. Lett. 72, 416-419 (1994).
[CrossRef] [PubMed]

Bihari, B.

D. K. Willianms, B. Bihari, B. M. Tissue, and J. M. Machale, "Preparation and fluorescence spectroscopy of bulk monoclinic Eu3+:Y2O3 and comparison to Eu3+:Y2O3 nanocrystals," J. Phys. Chem. B 102, 916-920 (1998).
[CrossRef]

Blasse, G.

G. Blasse, "On the Eu3+ fluorescence of mixed metal oxides. IV. The photoluminescent efficiency of Eu3+-activated oxides," J. Chem. Phys. 45, 2356-2360 (1966).
[CrossRef]

G. Blasse and B. Grabmaier, Luminescent Materials (Springer, 1994).
[CrossRef]

Boilot, J.-P.

A. Huignard, T. Gacoin, and J.-P. Boilot, "Synthesis and luminescence properties of colloidal YVO4:Eu phosphors," Chem. Mater. 12, 1090-1094 (2000).
[CrossRef]

Depero, L. E.

G. Tessari, M. Bettinelli, A. Speghini, G. Pozza, L. E. Depero, and L. Sangaletti, "Synthesis and optical properties of nanosized powders: lanthanide-doped Y2O3," Appl. Surf. Sci. 144-145, 686-689 (1999).
[CrossRef]

Dorenbos, P.

P. Dorenbos, "The Eu3+ charge transfer energy and the relation with the band gap of compounds," J. Lumin. 111, 89-104 (2005).
[CrossRef]

Fu, Z.

Z. Fu, S. Zhou, Y. Yu, and S. Zhang, "Photoluminescence properties and analysis of spectral structure of Eu3+-doped SrY2O4," J. Phys. Chem. B 109, 23320-23325 (2005).
[CrossRef] [PubMed]

Gacoin, T.

A. Huignard, T. Gacoin, and J.-P. Boilot, "Synthesis and luminescence properties of colloidal YVO4:Eu phosphors," Chem. Mater. 12, 1090-1094 (2000).
[CrossRef]

Gallagher, X.

R. N. Bhargava, D. Hong, X. Gallagher, and A. Nurmikko, "Optical properties of manganese-doped nanocrystals of ZnS," Phys. Rev. Lett. 72, 416-419 (1994).
[CrossRef] [PubMed]

Goldburt, E. T.

E. T. Goldburt, B. Kulkarni, R. N. Bhargava, T. Taylor, and M. Libera, "Size-dependent efficiency in Tb-doped Y2O3 nanocrystalline phosphor," J. Lumin. 72-74, 190-192 (1997).
[CrossRef]

Gong, M.

L. Zhou, J. Shi, and M. Gong, "Red phosphor SrY2O4:Eu3+ synthesized by the sol-gel method," J. Lumin. 113, 285-290 (2005).
[CrossRef]

L. Zhou, J. Shi, and M. Gong, "Preparation of SrY2O4:Eu3+(R=Y,Lu) phosphor and its photoluminescence properties," Mater. Lett. 59, 2079-2084 (2005).
[CrossRef]

Grabmaier, B.

G. Blasse and B. Grabmaier, Luminescent Materials (Springer, 1994).
[CrossRef]

Hong, D.

R. N. Bhargava, D. Hong, X. Gallagher, and A. Nurmikko, "Optical properties of manganese-doped nanocrystals of ZnS," Phys. Rev. Lett. 72, 416-419 (1994).
[CrossRef] [PubMed]

Hu, T.

Z. Qi, C. Shi, W. Zhang, and T. Hu, "Local structure and luminescence of nanocrystalline Y2O3:Eu," Appl. Phys. Lett. 81, 2857-2859 (2002).
[CrossRef]

Huignard, A.

A. Huignard, T. Gacoin, and J.-P. Boilot, "Synthesis and luminescence properties of colloidal YVO4:Eu phosphors," Chem. Mater. 12, 1090-1094 (2000).
[CrossRef]

Jia, W. Y.

W. L. Xu, W. Y. Jia, I. Revira, K. Monge, and H. M. Liu, "Optical properties of multiple sites of Eu3+ in SrY2O4 single-crystal fibers," J. Electrochem. Soc. 148, H176-H178 (2001).
[CrossRef]

Jiang, X.

Z. Wei, L. Sun, C. Liao, J. Yin, X. Jiang, C. Yan, and S. Lü, "Size-dependent chromaticity in YBO3:Eu nanocrystals: correlation with microstructure and site symmetry," J. Phys. Chem. B 106, 10610-10617 (2002).
[CrossRef]

Kim, C.-H.

S.-J. Park, C.-H. Park, B.-Y. Yu, H.-S. Bae, C.-H. Kim, and C.-H. Pyun, "Structure and luminescence of SrY2O4:Eu," J. Electrochem. Soc. 146, 3903-3906 (1999).
[CrossRef]

Kulkarni, B.

E. T. Goldburt, B. Kulkarni, R. N. Bhargava, T. Taylor, and M. Libera, "Size-dependent efficiency in Tb-doped Y2O3 nanocrystalline phosphor," J. Lumin. 72-74, 190-192 (1997).
[CrossRef]

Liao, C.

Z. Wei, L. Sun, C. Liao, J. Yin, X. Jiang, C. Yan, and S. Lü, "Size-dependent chromaticity in YBO3:Eu nanocrystals: correlation with microstructure and site symmetry," J. Phys. Chem. B 106, 10610-10617 (2002).
[CrossRef]

L. Sun, J. Yao, C. Liu, C. Liao, and C. Yan, "Rare earth activated nanosized oxide phosphors: synthesis and optical properties," J. Lumin. 87-89, 447-450 (2000).
[CrossRef]

Libera, M.

E. T. Goldburt, B. Kulkarni, R. N. Bhargava, T. Taylor, and M. Libera, "Size-dependent efficiency in Tb-doped Y2O3 nanocrystalline phosphor," J. Lumin. 72-74, 190-192 (1997).
[CrossRef]

Liu, C.

L. Sun, J. Yao, C. Liu, C. Liao, and C. Yan, "Rare earth activated nanosized oxide phosphors: synthesis and optical properties," J. Lumin. 87-89, 447-450 (2000).
[CrossRef]

Liu, H. M.

W. L. Xu, W. Y. Jia, I. Revira, K. Monge, and H. M. Liu, "Optical properties of multiple sites of Eu3+ in SrY2O4 single-crystal fibers," J. Electrochem. Soc. 148, H176-H178 (2001).
[CrossRef]

Lü, S.

Z. Wei, L. Sun, C. Liao, J. Yin, X. Jiang, C. Yan, and S. Lü, "Size-dependent chromaticity in YBO3:Eu nanocrystals: correlation with microstructure and site symmetry," J. Phys. Chem. B 106, 10610-10617 (2002).
[CrossRef]

Machale, J. M.

D. K. Willianms, B. Bihari, B. M. Tissue, and J. M. Machale, "Preparation and fluorescence spectroscopy of bulk monoclinic Eu3+:Y2O3 and comparison to Eu3+:Y2O3 nanocrystals," J. Phys. Chem. B 102, 916-920 (1998).
[CrossRef]

Monge, K.

W. L. Xu, W. Y. Jia, I. Revira, K. Monge, and H. M. Liu, "Optical properties of multiple sites of Eu3+ in SrY2O4 single-crystal fibers," J. Electrochem. Soc. 148, H176-H178 (2001).
[CrossRef]

Müller-Buschbaum, V. H.

V. H. Müller-Buschbaum, "Zur Kenntnis von SrY2O4," Z. Anorg. Allg. Chem. 358, 138-146 (1968).
[CrossRef]

Nurmikko, A.

R. N. Bhargava, D. Hong, X. Gallagher, and A. Nurmikko, "Optical properties of manganese-doped nanocrystals of ZnS," Phys. Rev. Lett. 72, 416-419 (1994).
[CrossRef] [PubMed]

Park, C.-H.

S.-J. Park, C.-H. Park, B.-Y. Yu, H.-S. Bae, C.-H. Kim, and C.-H. Pyun, "Structure and luminescence of SrY2O4:Eu," J. Electrochem. Soc. 146, 3903-3906 (1999).
[CrossRef]

Park, S.-J.

S.-J. Park, C.-H. Park, B.-Y. Yu, H.-S. Bae, C.-H. Kim, and C.-H. Pyun, "Structure and luminescence of SrY2O4:Eu," J. Electrochem. Soc. 146, 3903-3906 (1999).
[CrossRef]

Pozza, G.

G. Tessari, M. Bettinelli, A. Speghini, G. Pozza, L. E. Depero, and L. Sangaletti, "Synthesis and optical properties of nanosized powders: lanthanide-doped Y2O3," Appl. Surf. Sci. 144-145, 686-689 (1999).
[CrossRef]

Pyun, C.-H.

S.-J. Park, C.-H. Park, B.-Y. Yu, H.-S. Bae, C.-H. Kim, and C.-H. Pyun, "Structure and luminescence of SrY2O4:Eu," J. Electrochem. Soc. 146, 3903-3906 (1999).
[CrossRef]

Qi, Z.

Z. Qi, C. Shi, W. Zhang, and T. Hu, "Local structure and luminescence of nanocrystalline Y2O3:Eu," Appl. Phys. Lett. 81, 2857-2859 (2002).
[CrossRef]

Revira, I.

W. L. Xu, W. Y. Jia, I. Revira, K. Monge, and H. M. Liu, "Optical properties of multiple sites of Eu3+ in SrY2O4 single-crystal fibers," J. Electrochem. Soc. 148, H176-H178 (2001).
[CrossRef]

Sangaletti, L.

G. Tessari, M. Bettinelli, A. Speghini, G. Pozza, L. E. Depero, and L. Sangaletti, "Synthesis and optical properties of nanosized powders: lanthanide-doped Y2O3," Appl. Surf. Sci. 144-145, 686-689 (1999).
[CrossRef]

Shi, C.

Z. Qi, C. Shi, W. Zhang, and T. Hu, "Local structure and luminescence of nanocrystalline Y2O3:Eu," Appl. Phys. Lett. 81, 2857-2859 (2002).
[CrossRef]

Shi, J.

L. Zhou, J. Shi, and M. Gong, "Preparation of SrY2O4:Eu3+(R=Y,Lu) phosphor and its photoluminescence properties," Mater. Lett. 59, 2079-2084 (2005).
[CrossRef]

L. Zhou, J. Shi, and M. Gong, "Red phosphor SrY2O4:Eu3+ synthesized by the sol-gel method," J. Lumin. 113, 285-290 (2005).
[CrossRef]

Shi, J. S.

J. S. Shi and S. Y. Zhang, "Barycenter of energy of lanthanide 4fN−15d configuration in inorganic crystals," J. Phys. Chem. B 108, 18845-18849 (2004).
[CrossRef]

J. S. Shi, Z. J. Wu, S. H. Zhou, and S. Y. Zhang, "Dependence of crystal field of 5d levels on hosts in the halide crystals," Chem. Phys. Lett. 380, 245-250 (2003).
[CrossRef]

J. S. Shi and S. Y. Zhang, "Predicting the position of the spin-forbidden band for Tb3+ ions in crystal hosts," J. Phys.: Condens. Matter 15, 4101-4107 (2003).
[CrossRef]

Speghini, A.

G. Tessari, M. Bettinelli, A. Speghini, G. Pozza, L. E. Depero, and L. Sangaletti, "Synthesis and optical properties of nanosized powders: lanthanide-doped Y2O3," Appl. Surf. Sci. 144-145, 686-689 (1999).
[CrossRef]

Sun, L.

Z. Wei, L. Sun, C. Liao, J. Yin, X. Jiang, C. Yan, and S. Lü, "Size-dependent chromaticity in YBO3:Eu nanocrystals: correlation with microstructure and site symmetry," J. Phys. Chem. B 106, 10610-10617 (2002).
[CrossRef]

L. Sun, J. Yao, C. Liu, C. Liao, and C. Yan, "Rare earth activated nanosized oxide phosphors: synthesis and optical properties," J. Lumin. 87-89, 447-450 (2000).
[CrossRef]

Taylor, T.

E. T. Goldburt, B. Kulkarni, R. N. Bhargava, T. Taylor, and M. Libera, "Size-dependent efficiency in Tb-doped Y2O3 nanocrystalline phosphor," J. Lumin. 72-74, 190-192 (1997).
[CrossRef]

Tessari, G.

G. Tessari, M. Bettinelli, A. Speghini, G. Pozza, L. E. Depero, and L. Sangaletti, "Synthesis and optical properties of nanosized powders: lanthanide-doped Y2O3," Appl. Surf. Sci. 144-145, 686-689 (1999).
[CrossRef]

Tissue, B. M.

D. K. Willianms, B. Bihari, B. M. Tissue, and J. M. Machale, "Preparation and fluorescence spectroscopy of bulk monoclinic Eu3+:Y2O3 and comparison to Eu3+:Y2O3 nanocrystals," J. Phys. Chem. B 102, 916-920 (1998).
[CrossRef]

Wei, Z.

Z. Wei, L. Sun, C. Liao, J. Yin, X. Jiang, C. Yan, and S. Lü, "Size-dependent chromaticity in YBO3:Eu nanocrystals: correlation with microstructure and site symmetry," J. Phys. Chem. B 106, 10610-10617 (2002).
[CrossRef]

Willianms, D. K.

D. K. Willianms, B. Bihari, B. M. Tissue, and J. M. Machale, "Preparation and fluorescence spectroscopy of bulk monoclinic Eu3+:Y2O3 and comparison to Eu3+:Y2O3 nanocrystals," J. Phys. Chem. B 102, 916-920 (1998).
[CrossRef]

Wu, Z. J.

J. S. Shi, Z. J. Wu, S. H. Zhou, and S. Y. Zhang, "Dependence of crystal field of 5d levels on hosts in the halide crystals," Chem. Phys. Lett. 380, 245-250 (2003).
[CrossRef]

Z. J. Wu and S. Y. Zhang, "Semiempirical method for the evaluation of bond covalency in complex crystals," J. Phys. Chem. A 103, 4270-4274 (1999).
[CrossRef]

Xia, S.

T. Yao, G. Zhao, W. Zhang, and S. Xia, "Combustion synthesis and photoluminescence of nanocrystalline Y2O3:Eu phosphors," Mater. Res. Bull. 32, 501-506 (1997).
[CrossRef]

Xu, W. L.

W. L. Xu, W. Y. Jia, I. Revira, K. Monge, and H. M. Liu, "Optical properties of multiple sites of Eu3+ in SrY2O4 single-crystal fibers," J. Electrochem. Soc. 148, H176-H178 (2001).
[CrossRef]

Yan, C.

Z. Wei, L. Sun, C. Liao, J. Yin, X. Jiang, C. Yan, and S. Lü, "Size-dependent chromaticity in YBO3:Eu nanocrystals: correlation with microstructure and site symmetry," J. Phys. Chem. B 106, 10610-10617 (2002).
[CrossRef]

L. Sun, J. Yao, C. Liu, C. Liao, and C. Yan, "Rare earth activated nanosized oxide phosphors: synthesis and optical properties," J. Lumin. 87-89, 447-450 (2000).
[CrossRef]

Yao, J.

L. Sun, J. Yao, C. Liu, C. Liao, and C. Yan, "Rare earth activated nanosized oxide phosphors: synthesis and optical properties," J. Lumin. 87-89, 447-450 (2000).
[CrossRef]

Yao, T.

T. Yao, G. Zhao, W. Zhang, and S. Xia, "Combustion synthesis and photoluminescence of nanocrystalline Y2O3:Eu phosphors," Mater. Res. Bull. 32, 501-506 (1997).
[CrossRef]

Yin, J.

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[CrossRef]

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T. Yao, G. Zhao, W. Zhang, and S. Xia, "Combustion synthesis and photoluminescence of nanocrystalline Y2O3:Eu phosphors," Mater. Res. Bull. 32, 501-506 (1997).
[CrossRef]

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L. Zhou, J. Shi, and M. Gong, "Red phosphor SrY2O4:Eu3+ synthesized by the sol-gel method," J. Lumin. 113, 285-290 (2005).
[CrossRef]

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[CrossRef]

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Z. Fu, S. Zhou, Y. Yu, and S. Zhang, "Photoluminescence properties and analysis of spectral structure of Eu3+-doped SrY2O4," J. Phys. Chem. B 109, 23320-23325 (2005).
[CrossRef] [PubMed]

Zhou, S. H.

J. S. Shi, Z. J. Wu, S. H. Zhou, and S. Y. Zhang, "Dependence of crystal field of 5d levels on hosts in the halide crystals," Chem. Phys. Lett. 380, 245-250 (2003).
[CrossRef]

Adv. Phys.

A. D. Yoffe, "Low-dimensional systems: quantum size effects and electronic properties of semiconductor microcrystallites (zero-dimensional systems) and some quasi-two-dimensional systems," Adv. Phys. 42, 173-262 (1993).
[CrossRef]

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Z. Qi, C. Shi, W. Zhang, and T. Hu, "Local structure and luminescence of nanocrystalline Y2O3:Eu," Appl. Phys. Lett. 81, 2857-2859 (2002).
[CrossRef]

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G. Tessari, M. Bettinelli, A. Speghini, G. Pozza, L. E. Depero, and L. Sangaletti, "Synthesis and optical properties of nanosized powders: lanthanide-doped Y2O3," Appl. Surf. Sci. 144-145, 686-689 (1999).
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[CrossRef]

Chem. Phys. Lett.

J. S. Shi, Z. J. Wu, S. H. Zhou, and S. Y. Zhang, "Dependence of crystal field of 5d levels on hosts in the halide crystals," Chem. Phys. Lett. 380, 245-250 (2003).
[CrossRef]

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S. Y. Zhang, "Investigation of chemical bonds on complex crystals," Chin. J. Chem. Phys. 4, 109-115 (1991).

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[CrossRef]

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[CrossRef]

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[CrossRef]

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[CrossRef]

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[CrossRef]

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[CrossRef]

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[CrossRef]

Z. Fu, S. Zhou, Y. Yu, and S. Zhang, "Photoluminescence properties and analysis of spectral structure of Eu3+-doped SrY2O4," J. Phys. Chem. B 109, 23320-23325 (2005).
[CrossRef] [PubMed]

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[CrossRef]

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L. Zhou, J. Shi, and M. Gong, "Preparation of SrY2O4:Eu3+(R=Y,Lu) phosphor and its photoluminescence properties," Mater. Lett. 59, 2079-2084 (2005).
[CrossRef]

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[CrossRef]

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Figures (9)

Fig. 1
Fig. 1

XRD patterns of Sr Y 2 O 4 : Eu 3 + synthesized by the solid-state reaction (bulk) and the combustion method (nano).

Fig. 2
Fig. 2

Excitation spectra of bulk Sr Y 2 O 4 : Eu 3 + for emission at 611 and 616 nm .

Fig. 3
Fig. 3

Emission spectrum of bulk Sr Y 2 O 4 : Eu 3 + for excitation at 270 nm .

Fig. 4
Fig. 4

Excitation spectra of nanocrystalline Sr Y 2 O 4 : Eu 3 + for emission at 611 and 616 nm .

Fig. 5
Fig. 5

Emission spectra of Sr Y 2 O 4 : Eu 3 + nanocrystal after excitation at 214, 250, and 260 nm , respectively.

Fig. 6
Fig. 6

Excitation spectra of bulk and nanocrystalline Sr Y 2 O 4 : Eu 3 + measured by monitoring at 588.58 nm .

Fig. 7
Fig. 7

High-resolution emission spectra of bulk Sr Y 2 O 4 : Eu 3 + for excitation at (a) 578.49, (b) 580.63, and (c), 581.86 nm , respectively.

Fig. 8
Fig. 8

High-resolution emission spectra of nanocrystalline Sr Y 2 O 4 : Eu 3 + for excitation at 580.53 ( B ) and 581.88 ( C ) .

Fig. 9
Fig. 9

Energy diagram of CT band in bulk and nanocrystalline Sr Y 2 O 4 : Eu 3 + . Arrows indicate the CT transition of Eu 3 + substituting Y site in bulk [ E Y ( Bulk ) CT ] and nanocrystalline [ E Y ( Nano ) CT ] , respectively.

Tables (4)

Tables Icon

Table 1 Bond Lengths in Bulk and Nanocrystalline Sr Y 2 O 4

Tables Icon

Table 2 Cell Parameters and Structural Characteristics for Bulk and Nanocrystalline Sr Y 2 O 4 : Eu 3 +

Tables Icon

Table 3 Wavelength and Energy Assignment of D 0 5 F J 7 ( J = 0 2 ) Transition for Sr Y 2 O 4 -Doped Eu 3 +

Tables Icon

Table 4 Value of Corresponding Crystal Factors for Bulk and Nanocrystalline Sr Y 2 O 4

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