Abstract

We reported the synthesis of a novel red long-afterglow material Sr2SnO4:Sm3+. Comparing with the air-sintered sample, a significant enhancement in both the fluorescence and phosphorescence for the vacuum-sintered sample was observed. This improvement could be attributed to the increase of oxygen vacancies which act as the sensitizer and the electron traps for the effective energy transfer from Sr2SnO4 host to Sm3+. The defects act as traps were investigated with thermoluminescence. For the presence of deep stable traps able to immobilize the energy permanently at room temperature, the Sr2SnO4:Sm3+ could be considered as a potential storage phosphor as well.

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  1. J. Qiu, K. Miura, H. Inouye, Y. Kondo, T. Mitsuyu, and K. Hirao, “Femtosecond laser-induced three-dimensional bright and long-lasting phosphorescence inside calcium aluminosilicate glasses doped with rare earth ions,” Appl. Phys. Lett. 73(13), 1763 (1998).
    [CrossRef]
  2. N. Kodama, T. Takahashi, M. Yamaga, Y. Tanii, J. Qiu, and K. Hirao, “Long-lasting phosphorescence in Ce3+-doped Ca2Al2SiO7 and CaYAl3O7 crystals,” Appl. Phys. Lett. 75(12), 1715 (1999).
    [CrossRef]
  3. D. Jia, W. Jia, and Y. Jia, “Long persistent alkali-earth silicate phosphors doped with Eu, Nd,” J. Appl. Phys. 101(2), 023520 (2007).
    [CrossRef]
  4. T. Matsuzawa, Y. Aoki, N. Takeuchi, and Y. Murayama, “A New Long Phosphorescent Phosphor with High Brightness, SrAl2O4: Eu, Dy,” J. Electrochem. Soc. 143(8), 2670 (1996).
    [CrossRef]
  5. A. H. Kitai, Solid state Luminescence, (Chapman & Hall:New York,1993).
  6. P. Diallo, P. Boutinaud, R. Mahiou, and J. Cousseins, “Red luminescence in Pr3+-doped calcium titanates,” Phys Stat. Solidi A 160(1), 255–263 (1997).
    [CrossRef]
  7. Y. Murazaki and K. Arai, “A new long persistence red phosphor,” Kidorui. 35 (41) (1999).
  8. J. Fu, “Orange and Red Emitting Long-Lasting Phosphors MO: Eu (M= Ca, Sr, Ba),” Electrochem. Solid-State Lett. 3(7), 350 (1999).
    [CrossRef]
  9. C.-C. Kang, R.-S. Liu, J.-C. Chang, and B.-J. Lee, “Synthesis and luminescent properties of a new yellowish-orange afterglow phosphor Y2O2S: Ti, Mg,” Chem. Mater. 15(21), 3966–3968 (2003).
    [CrossRef]
  10. J. Trojan-Piegza and E. Zych, “Afterglow Luminescence of Lu2O3: Eu Ceramics Synthesized at Different Atmospheres,” J. Phys. Chem. C 114(9), 4215 (2010).
    [CrossRef]
  11. A. Newport, J. Silver, and A. Vecht, “The synthesis of fine particle yttrium vanadate phosphors from spherical powder precursors using urea precipitation,” J. Electrochem. Soc. 147(10), 3944 (2000).
    [CrossRef]
  12. D. Dexter, “A theory of sensitized luminescence in solids,” J. Chem. Phys. 21(5), 836 (1953).
    [CrossRef]
  13. D. Cooke, B. Bennett, R. Muenchausen, J. Lee, and M. Nastasi, “Intrinsic ultraviolet luminescence from Lu2O3, Lu2SiO5 and Lu2SiO5: Ce3+,” J. Lumin. 106(2), 125–132 (2004).
    [CrossRef]
  14. J. Glodo and A. Wojtowicz, “Thermoluminescence and scintillation properties of LuAP and YAP,” J. Alloy. Comp. 300-301(1-2), 289–294 (2000).
    [CrossRef]
  15. J. Trojan-Piegza, J. Niittykoski, J. Hölsä, and E. Zych, “J Thermoluminescence and Kinetics of Persistent Luminescence of Vacuum-Sintered Tb 3+ -Doped and Tb 3+ ,Ca 2+ -Codoped Lu 2 O 3 Materials,” Chem. Mater. 20(6), 2252–2261 (2008).
    [CrossRef]
  16. S. Schweizer, “Physics and current understanding of X-ray storage phosphors,” Phys Stat. Solidi A 187(2), 335–393 (2001).
    [CrossRef]

2010 (1)

J. Trojan-Piegza and E. Zych, “Afterglow Luminescence of Lu2O3: Eu Ceramics Synthesized at Different Atmospheres,” J. Phys. Chem. C 114(9), 4215 (2010).
[CrossRef]

2008 (1)

J. Trojan-Piegza, J. Niittykoski, J. Hölsä, and E. Zych, “J Thermoluminescence and Kinetics of Persistent Luminescence of Vacuum-Sintered Tb 3+ -Doped and Tb 3+ ,Ca 2+ -Codoped Lu 2 O 3 Materials,” Chem. Mater. 20(6), 2252–2261 (2008).
[CrossRef]

2007 (1)

D. Jia, W. Jia, and Y. Jia, “Long persistent alkali-earth silicate phosphors doped with Eu, Nd,” J. Appl. Phys. 101(2), 023520 (2007).
[CrossRef]

2004 (1)

D. Cooke, B. Bennett, R. Muenchausen, J. Lee, and M. Nastasi, “Intrinsic ultraviolet luminescence from Lu2O3, Lu2SiO5 and Lu2SiO5: Ce3+,” J. Lumin. 106(2), 125–132 (2004).
[CrossRef]

2003 (1)

C.-C. Kang, R.-S. Liu, J.-C. Chang, and B.-J. Lee, “Synthesis and luminescent properties of a new yellowish-orange afterglow phosphor Y2O2S: Ti, Mg,” Chem. Mater. 15(21), 3966–3968 (2003).
[CrossRef]

2001 (1)

S. Schweizer, “Physics and current understanding of X-ray storage phosphors,” Phys Stat. Solidi A 187(2), 335–393 (2001).
[CrossRef]

2000 (2)

J. Glodo and A. Wojtowicz, “Thermoluminescence and scintillation properties of LuAP and YAP,” J. Alloy. Comp. 300-301(1-2), 289–294 (2000).
[CrossRef]

A. Newport, J. Silver, and A. Vecht, “The synthesis of fine particle yttrium vanadate phosphors from spherical powder precursors using urea precipitation,” J. Electrochem. Soc. 147(10), 3944 (2000).
[CrossRef]

1999 (2)

J. Fu, “Orange and Red Emitting Long-Lasting Phosphors MO: Eu (M= Ca, Sr, Ba),” Electrochem. Solid-State Lett. 3(7), 350 (1999).
[CrossRef]

N. Kodama, T. Takahashi, M. Yamaga, Y. Tanii, J. Qiu, and K. Hirao, “Long-lasting phosphorescence in Ce3+-doped Ca2Al2SiO7 and CaYAl3O7 crystals,” Appl. Phys. Lett. 75(12), 1715 (1999).
[CrossRef]

1998 (1)

J. Qiu, K. Miura, H. Inouye, Y. Kondo, T. Mitsuyu, and K. Hirao, “Femtosecond laser-induced three-dimensional bright and long-lasting phosphorescence inside calcium aluminosilicate glasses doped with rare earth ions,” Appl. Phys. Lett. 73(13), 1763 (1998).
[CrossRef]

1997 (1)

P. Diallo, P. Boutinaud, R. Mahiou, and J. Cousseins, “Red luminescence in Pr3+-doped calcium titanates,” Phys Stat. Solidi A 160(1), 255–263 (1997).
[CrossRef]

1996 (1)

T. Matsuzawa, Y. Aoki, N. Takeuchi, and Y. Murayama, “A New Long Phosphorescent Phosphor with High Brightness, SrAl2O4: Eu, Dy,” J. Electrochem. Soc. 143(8), 2670 (1996).
[CrossRef]

1953 (1)

D. Dexter, “A theory of sensitized luminescence in solids,” J. Chem. Phys. 21(5), 836 (1953).
[CrossRef]

Aoki, Y.

T. Matsuzawa, Y. Aoki, N. Takeuchi, and Y. Murayama, “A New Long Phosphorescent Phosphor with High Brightness, SrAl2O4: Eu, Dy,” J. Electrochem. Soc. 143(8), 2670 (1996).
[CrossRef]

Bennett, B.

D. Cooke, B. Bennett, R. Muenchausen, J. Lee, and M. Nastasi, “Intrinsic ultraviolet luminescence from Lu2O3, Lu2SiO5 and Lu2SiO5: Ce3+,” J. Lumin. 106(2), 125–132 (2004).
[CrossRef]

Boutinaud, P.

P. Diallo, P. Boutinaud, R. Mahiou, and J. Cousseins, “Red luminescence in Pr3+-doped calcium titanates,” Phys Stat. Solidi A 160(1), 255–263 (1997).
[CrossRef]

Chang, J.-C.

C.-C. Kang, R.-S. Liu, J.-C. Chang, and B.-J. Lee, “Synthesis and luminescent properties of a new yellowish-orange afterglow phosphor Y2O2S: Ti, Mg,” Chem. Mater. 15(21), 3966–3968 (2003).
[CrossRef]

Cooke, D.

D. Cooke, B. Bennett, R. Muenchausen, J. Lee, and M. Nastasi, “Intrinsic ultraviolet luminescence from Lu2O3, Lu2SiO5 and Lu2SiO5: Ce3+,” J. Lumin. 106(2), 125–132 (2004).
[CrossRef]

Cousseins, J.

P. Diallo, P. Boutinaud, R. Mahiou, and J. Cousseins, “Red luminescence in Pr3+-doped calcium titanates,” Phys Stat. Solidi A 160(1), 255–263 (1997).
[CrossRef]

Dexter, D.

D. Dexter, “A theory of sensitized luminescence in solids,” J. Chem. Phys. 21(5), 836 (1953).
[CrossRef]

Diallo, P.

P. Diallo, P. Boutinaud, R. Mahiou, and J. Cousseins, “Red luminescence in Pr3+-doped calcium titanates,” Phys Stat. Solidi A 160(1), 255–263 (1997).
[CrossRef]

Fu, J.

J. Fu, “Orange and Red Emitting Long-Lasting Phosphors MO: Eu (M= Ca, Sr, Ba),” Electrochem. Solid-State Lett. 3(7), 350 (1999).
[CrossRef]

Glodo, J.

J. Glodo and A. Wojtowicz, “Thermoluminescence and scintillation properties of LuAP and YAP,” J. Alloy. Comp. 300-301(1-2), 289–294 (2000).
[CrossRef]

Hirao, K.

N. Kodama, T. Takahashi, M. Yamaga, Y. Tanii, J. Qiu, and K. Hirao, “Long-lasting phosphorescence in Ce3+-doped Ca2Al2SiO7 and CaYAl3O7 crystals,” Appl. Phys. Lett. 75(12), 1715 (1999).
[CrossRef]

J. Qiu, K. Miura, H. Inouye, Y. Kondo, T. Mitsuyu, and K. Hirao, “Femtosecond laser-induced three-dimensional bright and long-lasting phosphorescence inside calcium aluminosilicate glasses doped with rare earth ions,” Appl. Phys. Lett. 73(13), 1763 (1998).
[CrossRef]

Hölsä, J.

J. Trojan-Piegza, J. Niittykoski, J. Hölsä, and E. Zych, “J Thermoluminescence and Kinetics of Persistent Luminescence of Vacuum-Sintered Tb 3+ -Doped and Tb 3+ ,Ca 2+ -Codoped Lu 2 O 3 Materials,” Chem. Mater. 20(6), 2252–2261 (2008).
[CrossRef]

Inouye, H.

J. Qiu, K. Miura, H. Inouye, Y. Kondo, T. Mitsuyu, and K. Hirao, “Femtosecond laser-induced three-dimensional bright and long-lasting phosphorescence inside calcium aluminosilicate glasses doped with rare earth ions,” Appl. Phys. Lett. 73(13), 1763 (1998).
[CrossRef]

Jia, D.

D. Jia, W. Jia, and Y. Jia, “Long persistent alkali-earth silicate phosphors doped with Eu, Nd,” J. Appl. Phys. 101(2), 023520 (2007).
[CrossRef]

Jia, W.

D. Jia, W. Jia, and Y. Jia, “Long persistent alkali-earth silicate phosphors doped with Eu, Nd,” J. Appl. Phys. 101(2), 023520 (2007).
[CrossRef]

Jia, Y.

D. Jia, W. Jia, and Y. Jia, “Long persistent alkali-earth silicate phosphors doped with Eu, Nd,” J. Appl. Phys. 101(2), 023520 (2007).
[CrossRef]

Kang, C.-C.

C.-C. Kang, R.-S. Liu, J.-C. Chang, and B.-J. Lee, “Synthesis and luminescent properties of a new yellowish-orange afterglow phosphor Y2O2S: Ti, Mg,” Chem. Mater. 15(21), 3966–3968 (2003).
[CrossRef]

Kodama, N.

N. Kodama, T. Takahashi, M. Yamaga, Y. Tanii, J. Qiu, and K. Hirao, “Long-lasting phosphorescence in Ce3+-doped Ca2Al2SiO7 and CaYAl3O7 crystals,” Appl. Phys. Lett. 75(12), 1715 (1999).
[CrossRef]

Kondo, Y.

J. Qiu, K. Miura, H. Inouye, Y. Kondo, T. Mitsuyu, and K. Hirao, “Femtosecond laser-induced three-dimensional bright and long-lasting phosphorescence inside calcium aluminosilicate glasses doped with rare earth ions,” Appl. Phys. Lett. 73(13), 1763 (1998).
[CrossRef]

Lee, B.-J.

C.-C. Kang, R.-S. Liu, J.-C. Chang, and B.-J. Lee, “Synthesis and luminescent properties of a new yellowish-orange afterglow phosphor Y2O2S: Ti, Mg,” Chem. Mater. 15(21), 3966–3968 (2003).
[CrossRef]

Lee, J.

D. Cooke, B. Bennett, R. Muenchausen, J. Lee, and M. Nastasi, “Intrinsic ultraviolet luminescence from Lu2O3, Lu2SiO5 and Lu2SiO5: Ce3+,” J. Lumin. 106(2), 125–132 (2004).
[CrossRef]

Liu, R.-S.

C.-C. Kang, R.-S. Liu, J.-C. Chang, and B.-J. Lee, “Synthesis and luminescent properties of a new yellowish-orange afterglow phosphor Y2O2S: Ti, Mg,” Chem. Mater. 15(21), 3966–3968 (2003).
[CrossRef]

Mahiou, R.

P. Diallo, P. Boutinaud, R. Mahiou, and J. Cousseins, “Red luminescence in Pr3+-doped calcium titanates,” Phys Stat. Solidi A 160(1), 255–263 (1997).
[CrossRef]

Matsuzawa, T.

T. Matsuzawa, Y. Aoki, N. Takeuchi, and Y. Murayama, “A New Long Phosphorescent Phosphor with High Brightness, SrAl2O4: Eu, Dy,” J. Electrochem. Soc. 143(8), 2670 (1996).
[CrossRef]

Mitsuyu, T.

J. Qiu, K. Miura, H. Inouye, Y. Kondo, T. Mitsuyu, and K. Hirao, “Femtosecond laser-induced three-dimensional bright and long-lasting phosphorescence inside calcium aluminosilicate glasses doped with rare earth ions,” Appl. Phys. Lett. 73(13), 1763 (1998).
[CrossRef]

Miura, K.

J. Qiu, K. Miura, H. Inouye, Y. Kondo, T. Mitsuyu, and K. Hirao, “Femtosecond laser-induced three-dimensional bright and long-lasting phosphorescence inside calcium aluminosilicate glasses doped with rare earth ions,” Appl. Phys. Lett. 73(13), 1763 (1998).
[CrossRef]

Muenchausen, R.

D. Cooke, B. Bennett, R. Muenchausen, J. Lee, and M. Nastasi, “Intrinsic ultraviolet luminescence from Lu2O3, Lu2SiO5 and Lu2SiO5: Ce3+,” J. Lumin. 106(2), 125–132 (2004).
[CrossRef]

Murayama, Y.

T. Matsuzawa, Y. Aoki, N. Takeuchi, and Y. Murayama, “A New Long Phosphorescent Phosphor with High Brightness, SrAl2O4: Eu, Dy,” J. Electrochem. Soc. 143(8), 2670 (1996).
[CrossRef]

Nastasi, M.

D. Cooke, B. Bennett, R. Muenchausen, J. Lee, and M. Nastasi, “Intrinsic ultraviolet luminescence from Lu2O3, Lu2SiO5 and Lu2SiO5: Ce3+,” J. Lumin. 106(2), 125–132 (2004).
[CrossRef]

Newport, A.

A. Newport, J. Silver, and A. Vecht, “The synthesis of fine particle yttrium vanadate phosphors from spherical powder precursors using urea precipitation,” J. Electrochem. Soc. 147(10), 3944 (2000).
[CrossRef]

Niittykoski, J.

J. Trojan-Piegza, J. Niittykoski, J. Hölsä, and E. Zych, “J Thermoluminescence and Kinetics of Persistent Luminescence of Vacuum-Sintered Tb 3+ -Doped and Tb 3+ ,Ca 2+ -Codoped Lu 2 O 3 Materials,” Chem. Mater. 20(6), 2252–2261 (2008).
[CrossRef]

Qiu, J.

N. Kodama, T. Takahashi, M. Yamaga, Y. Tanii, J. Qiu, and K. Hirao, “Long-lasting phosphorescence in Ce3+-doped Ca2Al2SiO7 and CaYAl3O7 crystals,” Appl. Phys. Lett. 75(12), 1715 (1999).
[CrossRef]

J. Qiu, K. Miura, H. Inouye, Y. Kondo, T. Mitsuyu, and K. Hirao, “Femtosecond laser-induced three-dimensional bright and long-lasting phosphorescence inside calcium aluminosilicate glasses doped with rare earth ions,” Appl. Phys. Lett. 73(13), 1763 (1998).
[CrossRef]

Schweizer, S.

S. Schweizer, “Physics and current understanding of X-ray storage phosphors,” Phys Stat. Solidi A 187(2), 335–393 (2001).
[CrossRef]

Silver, J.

A. Newport, J. Silver, and A. Vecht, “The synthesis of fine particle yttrium vanadate phosphors from spherical powder precursors using urea precipitation,” J. Electrochem. Soc. 147(10), 3944 (2000).
[CrossRef]

Takahashi, T.

N. Kodama, T. Takahashi, M. Yamaga, Y. Tanii, J. Qiu, and K. Hirao, “Long-lasting phosphorescence in Ce3+-doped Ca2Al2SiO7 and CaYAl3O7 crystals,” Appl. Phys. Lett. 75(12), 1715 (1999).
[CrossRef]

Takeuchi, N.

T. Matsuzawa, Y. Aoki, N. Takeuchi, and Y. Murayama, “A New Long Phosphorescent Phosphor with High Brightness, SrAl2O4: Eu, Dy,” J. Electrochem. Soc. 143(8), 2670 (1996).
[CrossRef]

Tanii, Y.

N. Kodama, T. Takahashi, M. Yamaga, Y. Tanii, J. Qiu, and K. Hirao, “Long-lasting phosphorescence in Ce3+-doped Ca2Al2SiO7 and CaYAl3O7 crystals,” Appl. Phys. Lett. 75(12), 1715 (1999).
[CrossRef]

Trojan-Piegza, J.

J. Trojan-Piegza and E. Zych, “Afterglow Luminescence of Lu2O3: Eu Ceramics Synthesized at Different Atmospheres,” J. Phys. Chem. C 114(9), 4215 (2010).
[CrossRef]

J. Trojan-Piegza, J. Niittykoski, J. Hölsä, and E. Zych, “J Thermoluminescence and Kinetics of Persistent Luminescence of Vacuum-Sintered Tb 3+ -Doped and Tb 3+ ,Ca 2+ -Codoped Lu 2 O 3 Materials,” Chem. Mater. 20(6), 2252–2261 (2008).
[CrossRef]

Vecht, A.

A. Newport, J. Silver, and A. Vecht, “The synthesis of fine particle yttrium vanadate phosphors from spherical powder precursors using urea precipitation,” J. Electrochem. Soc. 147(10), 3944 (2000).
[CrossRef]

Wojtowicz, A.

J. Glodo and A. Wojtowicz, “Thermoluminescence and scintillation properties of LuAP and YAP,” J. Alloy. Comp. 300-301(1-2), 289–294 (2000).
[CrossRef]

Yamaga, M.

N. Kodama, T. Takahashi, M. Yamaga, Y. Tanii, J. Qiu, and K. Hirao, “Long-lasting phosphorescence in Ce3+-doped Ca2Al2SiO7 and CaYAl3O7 crystals,” Appl. Phys. Lett. 75(12), 1715 (1999).
[CrossRef]

Zych, E.

J. Trojan-Piegza and E. Zych, “Afterglow Luminescence of Lu2O3: Eu Ceramics Synthesized at Different Atmospheres,” J. Phys. Chem. C 114(9), 4215 (2010).
[CrossRef]

J. Trojan-Piegza, J. Niittykoski, J. Hölsä, and E. Zych, “J Thermoluminescence and Kinetics of Persistent Luminescence of Vacuum-Sintered Tb 3+ -Doped and Tb 3+ ,Ca 2+ -Codoped Lu 2 O 3 Materials,” Chem. Mater. 20(6), 2252–2261 (2008).
[CrossRef]

Appl. Phys. Lett. (2)

J. Qiu, K. Miura, H. Inouye, Y. Kondo, T. Mitsuyu, and K. Hirao, “Femtosecond laser-induced three-dimensional bright and long-lasting phosphorescence inside calcium aluminosilicate glasses doped with rare earth ions,” Appl. Phys. Lett. 73(13), 1763 (1998).
[CrossRef]

N. Kodama, T. Takahashi, M. Yamaga, Y. Tanii, J. Qiu, and K. Hirao, “Long-lasting phosphorescence in Ce3+-doped Ca2Al2SiO7 and CaYAl3O7 crystals,” Appl. Phys. Lett. 75(12), 1715 (1999).
[CrossRef]

Chem. Mater. (2)

C.-C. Kang, R.-S. Liu, J.-C. Chang, and B.-J. Lee, “Synthesis and luminescent properties of a new yellowish-orange afterglow phosphor Y2O2S: Ti, Mg,” Chem. Mater. 15(21), 3966–3968 (2003).
[CrossRef]

J. Trojan-Piegza, J. Niittykoski, J. Hölsä, and E. Zych, “J Thermoluminescence and Kinetics of Persistent Luminescence of Vacuum-Sintered Tb 3+ -Doped and Tb 3+ ,Ca 2+ -Codoped Lu 2 O 3 Materials,” Chem. Mater. 20(6), 2252–2261 (2008).
[CrossRef]

Electrochem. Solid-State Lett. (1)

J. Fu, “Orange and Red Emitting Long-Lasting Phosphors MO: Eu (M= Ca, Sr, Ba),” Electrochem. Solid-State Lett. 3(7), 350 (1999).
[CrossRef]

J. Alloy. Comp. (1)

J. Glodo and A. Wojtowicz, “Thermoluminescence and scintillation properties of LuAP and YAP,” J. Alloy. Comp. 300-301(1-2), 289–294 (2000).
[CrossRef]

J. Appl. Phys. (1)

D. Jia, W. Jia, and Y. Jia, “Long persistent alkali-earth silicate phosphors doped with Eu, Nd,” J. Appl. Phys. 101(2), 023520 (2007).
[CrossRef]

J. Chem. Phys. (1)

D. Dexter, “A theory of sensitized luminescence in solids,” J. Chem. Phys. 21(5), 836 (1953).
[CrossRef]

J. Electrochem. Soc. (2)

A. Newport, J. Silver, and A. Vecht, “The synthesis of fine particle yttrium vanadate phosphors from spherical powder precursors using urea precipitation,” J. Electrochem. Soc. 147(10), 3944 (2000).
[CrossRef]

T. Matsuzawa, Y. Aoki, N. Takeuchi, and Y. Murayama, “A New Long Phosphorescent Phosphor with High Brightness, SrAl2O4: Eu, Dy,” J. Electrochem. Soc. 143(8), 2670 (1996).
[CrossRef]

J. Lumin. (1)

D. Cooke, B. Bennett, R. Muenchausen, J. Lee, and M. Nastasi, “Intrinsic ultraviolet luminescence from Lu2O3, Lu2SiO5 and Lu2SiO5: Ce3+,” J. Lumin. 106(2), 125–132 (2004).
[CrossRef]

J. Phys. Chem. C (1)

J. Trojan-Piegza and E. Zych, “Afterglow Luminescence of Lu2O3: Eu Ceramics Synthesized at Different Atmospheres,” J. Phys. Chem. C 114(9), 4215 (2010).
[CrossRef]

Phys Stat. Solidi A (2)

P. Diallo, P. Boutinaud, R. Mahiou, and J. Cousseins, “Red luminescence in Pr3+-doped calcium titanates,” Phys Stat. Solidi A 160(1), 255–263 (1997).
[CrossRef]

S. Schweizer, “Physics and current understanding of X-ray storage phosphors,” Phys Stat. Solidi A 187(2), 335–393 (2001).
[CrossRef]

Other (2)

Y. Murazaki and K. Arai, “A new long persistence red phosphor,” Kidorui. 35 (41) (1999).

A. H. Kitai, Solid state Luminescence, (Chapman & Hall:New York,1993).

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Figures (5)

Fig. 1
Fig. 1

XRD patterns of the air-sintered Sr2SnO4: Sm3+, the vacuum-sintered Sr2SnO4: Sm3+ and JCPDS Card No. 34-0379.

Fig. 2
Fig. 2

Emission(λex = 254nm) and excitation(λem = 622nm) spectra of Sr2SnO4 and Sr2SnO4: Sm3+. (a) is the emission spectrum of the air-sintered Sr2SnO4: Sm3+. (b), (d) and inset are the emission spectra of Sr2SnO4: Sm3+ sintered in vacuum. (c) and (e) are the emission spectra of Sr2SnO4 sintered in vacuum and air, respectively. Left dash curve is the excitation spectrum of Sr2SnO4: Sm3+ sintered in vacuum.

Fig. 3
Fig. 3

Afterglow decay curves of Sr2SnO4: Sm3+ sintered in air and vacuum. Inset: long afterglow photographs of Sr2SnO4: Sm3+ sintered in air and vacuum. The photographs were taken in the darkroom for 1 min after the removal of the 254-nm ultraviolet lamp.

Fig. 4
Fig. 4

Thermoluminescence glow curves of the vacuum-sintered Sr2SnO4 and Sr2SnO4: Sm3+.

Fig. 5
Fig. 5

Thermoluminescence glow curves of the vacuum-sintered Sr2SnO4: Sm3+ recorded with different delay times (30min, 2h, 72h) after the UV irradiation.

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