Abstract

In this work we study the persistent luminescence properties of europium-doped alkaline earth silicon oxynitrides (CaSi2O2N2, SrSi2O2N2 and BaSi2O2N2). All compounds show afterglow emission, with an emission spectrum which is similar to the steady state photoluminescence. The afterglow decay time for BaSi2O2N2:Eu and SrSi2O2N2:Eu is about 50 and 100 minutes respectively, while for CaSi2O2N2:Eu the afterglow intensity is very low. Although the persistent luminescence can be induced by ultraviolet light (250-300 nm) in all three phosphors, only for BaSi2O2N2:Eu low energy radiation (350-500 nm) allows filling of the traps responsible for the afterglow.

© 2012 OSA

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  1. K. Van den Eeckhout, P. F. Smet, and D. Poelman, “Persistent luminescence in Eu2+-doped compounds: a review,” Materials3(4), 2536–2566 (2010).
    [CrossRef]
  2. T. Matsuzawa, Y. Aoki, N. Takeuchi, and Y. Murayama, “New long phosphorescent phosphor with high brightness, SrAl2O4:Eu2+,Dy3+,” J. Electrochem. Soc.143(8), 2670–2673 (1996).
    [CrossRef]
  3. R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Höppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all-nitride phosphor-converted white light emitting diode,” Phys. Status Solidi A202(9), 1727–1732 (2005).
    [CrossRef]
  4. R. J. Xie, N. Hirosaki, K. Sakuma, and N. Kimura, “White light-emitting diodes (LEDs) using (oxy) nitride phosphors,” J. Phys. D Appl. Phys.41(14), 144013 (2008).
    [CrossRef]
  5. P. F. Smet, A. B. Parmentier, and D. Poelman, “Selecting conversion phosphors for white light-emitting diodes,” J. Electrochem. Soc.158(6), R37–R54 (2011).
    [CrossRef]
  6. V. Bachmann, C. Ronda, O. Oeckler, W. Schnick, and A. Meijerink, “Color point tuning for (Sr,Ca,Ba)Si2O2N2:Eu2+ for white light LEDs,” Chem. Mater.21(2), 316–325 (2009).
    [CrossRef]
  7. V. Bachmann, T. Justel, A. Meijerink, C. Ronda, and P. J. Schmidt, “Luminescence properties of SrSi2O2N2 doped with divalent rare earth ions,” J. Lumin.121(2), 441–449 (2006).
    [CrossRef]
  8. M. Y. Wang, X. Zhang, Z. D. Hao, X. G. Ren, Y. S. Luo, H. F. Zhao, X. J. Wang, and J. H. Zhang, “Long-lasting phosphorescence in BaSi2O2N2:Eu2+ and Ba2SiO4:Eu2+ phases for x-ray and cathode ray tubes,” J. Electrochem. Soc.157(2), H178–H181 (2010).
    [CrossRef]
  9. A. J. J. Bos, R. M. van Duijvenvoorde, E. van der Kolk, W. Drozdowski, and P. Dorenbos, “Thermoluminescence excitation spectroscopy: A versatile technique to study persistent luminescence phosphors,” J. Lumin.131(7), 1465–1471 (2011).
    [CrossRef]
  10. P. F. Smet, K. Van den Eeckhout, A. J. J. Bos, E. van der Kolk, and P. Dorenbos, “Temperature and wavelength dependent trap filling in M2Si5N8:Eu (M = Ca, Sr, Ba) persistent phosphors,” J. Lumin.132(3), 682–689 (2012).
    [CrossRef]
  11. J. A. Kechele, O. Oeckler, F. Stadler, and W. Schnick, “Structure elucidation of BaSi2O2N2 - A host lattice for rare-earth doped luminescent materials in phosphor-converted (pc)-LEDs,” Solid State Sci.11(2), 537–543 (2009).
    [CrossRef]
  12. O. Oeckler, F. Stadler, T. Rosenthal, and W. Schnick, “Real structure of SrSi2O2N2,” Solid State Sci.9(2), 205–212 (2007).
    [CrossRef]
  13. H. A. Höppe, F. Stadler, O. Oeckler, and W. Schnick, “Ca[Si2O2N2] - A novel layer silicate,” Angew. Chem. Int. Ed.43(41), 5540–5542 (2004).
    [CrossRef]
  14. F. Stadler, R. Kraut, O. Oeckler, S. Schmid, and W. Schnick, “Synthesis, crystal structure and solid-state NMR spectroscopic investigation of the oxonitridosilicate BaSi6N8O,” ChemInform36(43), 1773–1778 (2005).
    [CrossRef]
  15. F. Stadler and W. Schnick, “The new layer-silicates Ba3Si6O9N4 and Eu3Si6O9N4,” Z. Anorg. Allg. Chem.632(6), 949–954 (2006).
    [CrossRef]
  16. D. Poelman, N. Avci, and P. F. Smet, “Measured luminance and visual appearance of multi-color persistent phosphors,” Opt. Express17(1), 358–364 (2009).
    [CrossRef] [PubMed]
  17. K. Van den Eeckhout, P. F. Smet, and D. Poelman, “Luminescent afterglow behavior in the M2Si5N8: Eu family (M = Ca, Sr, Ba),” Materials4(6), 980–990 (2011).
    [CrossRef]
  18. K. Korthout, K. Van den Eeckhout, J. Botterman, S. Nikitenko, D. Poelman, and P. F. Smet, “Luminescence and x-ray absorption measurements of persistent SrAl2O4:Eu,Dy powders: Evidence for valence state changes,” Phys. Rev. B84(8), 085140 (2011).
    [CrossRef]

2012 (1)

P. F. Smet, K. Van den Eeckhout, A. J. J. Bos, E. van der Kolk, and P. Dorenbos, “Temperature and wavelength dependent trap filling in M2Si5N8:Eu (M = Ca, Sr, Ba) persistent phosphors,” J. Lumin.132(3), 682–689 (2012).
[CrossRef]

2011 (4)

K. Van den Eeckhout, P. F. Smet, and D. Poelman, “Luminescent afterglow behavior in the M2Si5N8: Eu family (M = Ca, Sr, Ba),” Materials4(6), 980–990 (2011).
[CrossRef]

K. Korthout, K. Van den Eeckhout, J. Botterman, S. Nikitenko, D. Poelman, and P. F. Smet, “Luminescence and x-ray absorption measurements of persistent SrAl2O4:Eu,Dy powders: Evidence for valence state changes,” Phys. Rev. B84(8), 085140 (2011).
[CrossRef]

P. F. Smet, A. B. Parmentier, and D. Poelman, “Selecting conversion phosphors for white light-emitting diodes,” J. Electrochem. Soc.158(6), R37–R54 (2011).
[CrossRef]

A. J. J. Bos, R. M. van Duijvenvoorde, E. van der Kolk, W. Drozdowski, and P. Dorenbos, “Thermoluminescence excitation spectroscopy: A versatile technique to study persistent luminescence phosphors,” J. Lumin.131(7), 1465–1471 (2011).
[CrossRef]

2010 (2)

M. Y. Wang, X. Zhang, Z. D. Hao, X. G. Ren, Y. S. Luo, H. F. Zhao, X. J. Wang, and J. H. Zhang, “Long-lasting phosphorescence in BaSi2O2N2:Eu2+ and Ba2SiO4:Eu2+ phases for x-ray and cathode ray tubes,” J. Electrochem. Soc.157(2), H178–H181 (2010).
[CrossRef]

K. Van den Eeckhout, P. F. Smet, and D. Poelman, “Persistent luminescence in Eu2+-doped compounds: a review,” Materials3(4), 2536–2566 (2010).
[CrossRef]

2009 (3)

V. Bachmann, C. Ronda, O. Oeckler, W. Schnick, and A. Meijerink, “Color point tuning for (Sr,Ca,Ba)Si2O2N2:Eu2+ for white light LEDs,” Chem. Mater.21(2), 316–325 (2009).
[CrossRef]

D. Poelman, N. Avci, and P. F. Smet, “Measured luminance and visual appearance of multi-color persistent phosphors,” Opt. Express17(1), 358–364 (2009).
[CrossRef] [PubMed]

J. A. Kechele, O. Oeckler, F. Stadler, and W. Schnick, “Structure elucidation of BaSi2O2N2 - A host lattice for rare-earth doped luminescent materials in phosphor-converted (pc)-LEDs,” Solid State Sci.11(2), 537–543 (2009).
[CrossRef]

2008 (1)

R. J. Xie, N. Hirosaki, K. Sakuma, and N. Kimura, “White light-emitting diodes (LEDs) using (oxy) nitride phosphors,” J. Phys. D Appl. Phys.41(14), 144013 (2008).
[CrossRef]

2007 (1)

O. Oeckler, F. Stadler, T. Rosenthal, and W. Schnick, “Real structure of SrSi2O2N2,” Solid State Sci.9(2), 205–212 (2007).
[CrossRef]

2006 (2)

F. Stadler and W. Schnick, “The new layer-silicates Ba3Si6O9N4 and Eu3Si6O9N4,” Z. Anorg. Allg. Chem.632(6), 949–954 (2006).
[CrossRef]

V. Bachmann, T. Justel, A. Meijerink, C. Ronda, and P. J. Schmidt, “Luminescence properties of SrSi2O2N2 doped with divalent rare earth ions,” J. Lumin.121(2), 441–449 (2006).
[CrossRef]

2005 (2)

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Höppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all-nitride phosphor-converted white light emitting diode,” Phys. Status Solidi A202(9), 1727–1732 (2005).
[CrossRef]

F. Stadler, R. Kraut, O. Oeckler, S. Schmid, and W. Schnick, “Synthesis, crystal structure and solid-state NMR spectroscopic investigation of the oxonitridosilicate BaSi6N8O,” ChemInform36(43), 1773–1778 (2005).
[CrossRef]

2004 (1)

H. A. Höppe, F. Stadler, O. Oeckler, and W. Schnick, “Ca[Si2O2N2] - A novel layer silicate,” Angew. Chem. Int. Ed.43(41), 5540–5542 (2004).
[CrossRef]

1996 (1)

T. Matsuzawa, Y. Aoki, N. Takeuchi, and Y. Murayama, “New long phosphorescent phosphor with high brightness, SrAl2O4:Eu2+,Dy3+,” J. Electrochem. Soc.143(8), 2670–2673 (1996).
[CrossRef]

Aoki, Y.

T. Matsuzawa, Y. Aoki, N. Takeuchi, and Y. Murayama, “New long phosphorescent phosphor with high brightness, SrAl2O4:Eu2+,Dy3+,” J. Electrochem. Soc.143(8), 2670–2673 (1996).
[CrossRef]

Avci, N.

Bachmann, V.

V. Bachmann, C. Ronda, O. Oeckler, W. Schnick, and A. Meijerink, “Color point tuning for (Sr,Ca,Ba)Si2O2N2:Eu2+ for white light LEDs,” Chem. Mater.21(2), 316–325 (2009).
[CrossRef]

V. Bachmann, T. Justel, A. Meijerink, C. Ronda, and P. J. Schmidt, “Luminescence properties of SrSi2O2N2 doped with divalent rare earth ions,” J. Lumin.121(2), 441–449 (2006).
[CrossRef]

Bos, A. J. J.

P. F. Smet, K. Van den Eeckhout, A. J. J. Bos, E. van der Kolk, and P. Dorenbos, “Temperature and wavelength dependent trap filling in M2Si5N8:Eu (M = Ca, Sr, Ba) persistent phosphors,” J. Lumin.132(3), 682–689 (2012).
[CrossRef]

A. J. J. Bos, R. M. van Duijvenvoorde, E. van der Kolk, W. Drozdowski, and P. Dorenbos, “Thermoluminescence excitation spectroscopy: A versatile technique to study persistent luminescence phosphors,” J. Lumin.131(7), 1465–1471 (2011).
[CrossRef]

Botterman, J.

K. Korthout, K. Van den Eeckhout, J. Botterman, S. Nikitenko, D. Poelman, and P. F. Smet, “Luminescence and x-ray absorption measurements of persistent SrAl2O4:Eu,Dy powders: Evidence for valence state changes,” Phys. Rev. B84(8), 085140 (2011).
[CrossRef]

Dorenbos, P.

P. F. Smet, K. Van den Eeckhout, A. J. J. Bos, E. van der Kolk, and P. Dorenbos, “Temperature and wavelength dependent trap filling in M2Si5N8:Eu (M = Ca, Sr, Ba) persistent phosphors,” J. Lumin.132(3), 682–689 (2012).
[CrossRef]

A. J. J. Bos, R. M. van Duijvenvoorde, E. van der Kolk, W. Drozdowski, and P. Dorenbos, “Thermoluminescence excitation spectroscopy: A versatile technique to study persistent luminescence phosphors,” J. Lumin.131(7), 1465–1471 (2011).
[CrossRef]

Drozdowski, W.

A. J. J. Bos, R. M. van Duijvenvoorde, E. van der Kolk, W. Drozdowski, and P. Dorenbos, “Thermoluminescence excitation spectroscopy: A versatile technique to study persistent luminescence phosphors,” J. Lumin.131(7), 1465–1471 (2011).
[CrossRef]

Hao, Z. D.

M. Y. Wang, X. Zhang, Z. D. Hao, X. G. Ren, Y. S. Luo, H. F. Zhao, X. J. Wang, and J. H. Zhang, “Long-lasting phosphorescence in BaSi2O2N2:Eu2+ and Ba2SiO4:Eu2+ phases for x-ray and cathode ray tubes,” J. Electrochem. Soc.157(2), H178–H181 (2010).
[CrossRef]

Hirosaki, N.

R. J. Xie, N. Hirosaki, K. Sakuma, and N. Kimura, “White light-emitting diodes (LEDs) using (oxy) nitride phosphors,” J. Phys. D Appl. Phys.41(14), 144013 (2008).
[CrossRef]

Höppe, H. A.

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Höppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all-nitride phosphor-converted white light emitting diode,” Phys. Status Solidi A202(9), 1727–1732 (2005).
[CrossRef]

H. A. Höppe, F. Stadler, O. Oeckler, and W. Schnick, “Ca[Si2O2N2] - A novel layer silicate,” Angew. Chem. Int. Ed.43(41), 5540–5542 (2004).
[CrossRef]

Juestel, T.

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Höppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all-nitride phosphor-converted white light emitting diode,” Phys. Status Solidi A202(9), 1727–1732 (2005).
[CrossRef]

Justel, T.

V. Bachmann, T. Justel, A. Meijerink, C. Ronda, and P. J. Schmidt, “Luminescence properties of SrSi2O2N2 doped with divalent rare earth ions,” J. Lumin.121(2), 441–449 (2006).
[CrossRef]

Kechele, J. A.

J. A. Kechele, O. Oeckler, F. Stadler, and W. Schnick, “Structure elucidation of BaSi2O2N2 - A host lattice for rare-earth doped luminescent materials in phosphor-converted (pc)-LEDs,” Solid State Sci.11(2), 537–543 (2009).
[CrossRef]

Kimura, N.

R. J. Xie, N. Hirosaki, K. Sakuma, and N. Kimura, “White light-emitting diodes (LEDs) using (oxy) nitride phosphors,” J. Phys. D Appl. Phys.41(14), 144013 (2008).
[CrossRef]

Korthout, K.

K. Korthout, K. Van den Eeckhout, J. Botterman, S. Nikitenko, D. Poelman, and P. F. Smet, “Luminescence and x-ray absorption measurements of persistent SrAl2O4:Eu,Dy powders: Evidence for valence state changes,” Phys. Rev. B84(8), 085140 (2011).
[CrossRef]

Krames, M. R.

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Höppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all-nitride phosphor-converted white light emitting diode,” Phys. Status Solidi A202(9), 1727–1732 (2005).
[CrossRef]

Kraut, R.

F. Stadler, R. Kraut, O. Oeckler, S. Schmid, and W. Schnick, “Synthesis, crystal structure and solid-state NMR spectroscopic investigation of the oxonitridosilicate BaSi6N8O,” ChemInform36(43), 1773–1778 (2005).
[CrossRef]

Luo, Y. S.

M. Y. Wang, X. Zhang, Z. D. Hao, X. G. Ren, Y. S. Luo, H. F. Zhao, X. J. Wang, and J. H. Zhang, “Long-lasting phosphorescence in BaSi2O2N2:Eu2+ and Ba2SiO4:Eu2+ phases for x-ray and cathode ray tubes,” J. Electrochem. Soc.157(2), H178–H181 (2010).
[CrossRef]

Matsuzawa, T.

T. Matsuzawa, Y. Aoki, N. Takeuchi, and Y. Murayama, “New long phosphorescent phosphor with high brightness, SrAl2O4:Eu2+,Dy3+,” J. Electrochem. Soc.143(8), 2670–2673 (1996).
[CrossRef]

Meijerink, A.

V. Bachmann, C. Ronda, O. Oeckler, W. Schnick, and A. Meijerink, “Color point tuning for (Sr,Ca,Ba)Si2O2N2:Eu2+ for white light LEDs,” Chem. Mater.21(2), 316–325 (2009).
[CrossRef]

V. Bachmann, T. Justel, A. Meijerink, C. Ronda, and P. J. Schmidt, “Luminescence properties of SrSi2O2N2 doped with divalent rare earth ions,” J. Lumin.121(2), 441–449 (2006).
[CrossRef]

Mueller, G.

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Höppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all-nitride phosphor-converted white light emitting diode,” Phys. Status Solidi A202(9), 1727–1732 (2005).
[CrossRef]

Mueller-Mach, R.

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Höppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all-nitride phosphor-converted white light emitting diode,” Phys. Status Solidi A202(9), 1727–1732 (2005).
[CrossRef]

Murayama, Y.

T. Matsuzawa, Y. Aoki, N. Takeuchi, and Y. Murayama, “New long phosphorescent phosphor with high brightness, SrAl2O4:Eu2+,Dy3+,” J. Electrochem. Soc.143(8), 2670–2673 (1996).
[CrossRef]

Nikitenko, S.

K. Korthout, K. Van den Eeckhout, J. Botterman, S. Nikitenko, D. Poelman, and P. F. Smet, “Luminescence and x-ray absorption measurements of persistent SrAl2O4:Eu,Dy powders: Evidence for valence state changes,” Phys. Rev. B84(8), 085140 (2011).
[CrossRef]

Oeckler, O.

V. Bachmann, C. Ronda, O. Oeckler, W. Schnick, and A. Meijerink, “Color point tuning for (Sr,Ca,Ba)Si2O2N2:Eu2+ for white light LEDs,” Chem. Mater.21(2), 316–325 (2009).
[CrossRef]

J. A. Kechele, O. Oeckler, F. Stadler, and W. Schnick, “Structure elucidation of BaSi2O2N2 - A host lattice for rare-earth doped luminescent materials in phosphor-converted (pc)-LEDs,” Solid State Sci.11(2), 537–543 (2009).
[CrossRef]

O. Oeckler, F. Stadler, T. Rosenthal, and W. Schnick, “Real structure of SrSi2O2N2,” Solid State Sci.9(2), 205–212 (2007).
[CrossRef]

F. Stadler, R. Kraut, O. Oeckler, S. Schmid, and W. Schnick, “Synthesis, crystal structure and solid-state NMR spectroscopic investigation of the oxonitridosilicate BaSi6N8O,” ChemInform36(43), 1773–1778 (2005).
[CrossRef]

H. A. Höppe, F. Stadler, O. Oeckler, and W. Schnick, “Ca[Si2O2N2] - A novel layer silicate,” Angew. Chem. Int. Ed.43(41), 5540–5542 (2004).
[CrossRef]

Parmentier, A. B.

P. F. Smet, A. B. Parmentier, and D. Poelman, “Selecting conversion phosphors for white light-emitting diodes,” J. Electrochem. Soc.158(6), R37–R54 (2011).
[CrossRef]

Poelman, D.

P. F. Smet, A. B. Parmentier, and D. Poelman, “Selecting conversion phosphors for white light-emitting diodes,” J. Electrochem. Soc.158(6), R37–R54 (2011).
[CrossRef]

K. Korthout, K. Van den Eeckhout, J. Botterman, S. Nikitenko, D. Poelman, and P. F. Smet, “Luminescence and x-ray absorption measurements of persistent SrAl2O4:Eu,Dy powders: Evidence for valence state changes,” Phys. Rev. B84(8), 085140 (2011).
[CrossRef]

K. Van den Eeckhout, P. F. Smet, and D. Poelman, “Luminescent afterglow behavior in the M2Si5N8: Eu family (M = Ca, Sr, Ba),” Materials4(6), 980–990 (2011).
[CrossRef]

K. Van den Eeckhout, P. F. Smet, and D. Poelman, “Persistent luminescence in Eu2+-doped compounds: a review,” Materials3(4), 2536–2566 (2010).
[CrossRef]

D. Poelman, N. Avci, and P. F. Smet, “Measured luminance and visual appearance of multi-color persistent phosphors,” Opt. Express17(1), 358–364 (2009).
[CrossRef] [PubMed]

Ren, X. G.

M. Y. Wang, X. Zhang, Z. D. Hao, X. G. Ren, Y. S. Luo, H. F. Zhao, X. J. Wang, and J. H. Zhang, “Long-lasting phosphorescence in BaSi2O2N2:Eu2+ and Ba2SiO4:Eu2+ phases for x-ray and cathode ray tubes,” J. Electrochem. Soc.157(2), H178–H181 (2010).
[CrossRef]

Ronda, C.

V. Bachmann, C. Ronda, O. Oeckler, W. Schnick, and A. Meijerink, “Color point tuning for (Sr,Ca,Ba)Si2O2N2:Eu2+ for white light LEDs,” Chem. Mater.21(2), 316–325 (2009).
[CrossRef]

V. Bachmann, T. Justel, A. Meijerink, C. Ronda, and P. J. Schmidt, “Luminescence properties of SrSi2O2N2 doped with divalent rare earth ions,” J. Lumin.121(2), 441–449 (2006).
[CrossRef]

Rosenthal, T.

O. Oeckler, F. Stadler, T. Rosenthal, and W. Schnick, “Real structure of SrSi2O2N2,” Solid State Sci.9(2), 205–212 (2007).
[CrossRef]

Sakuma, K.

R. J. Xie, N. Hirosaki, K. Sakuma, and N. Kimura, “White light-emitting diodes (LEDs) using (oxy) nitride phosphors,” J. Phys. D Appl. Phys.41(14), 144013 (2008).
[CrossRef]

Schmid, S.

F. Stadler, R. Kraut, O. Oeckler, S. Schmid, and W. Schnick, “Synthesis, crystal structure and solid-state NMR spectroscopic investigation of the oxonitridosilicate BaSi6N8O,” ChemInform36(43), 1773–1778 (2005).
[CrossRef]

Schmidt, P.

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Höppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all-nitride phosphor-converted white light emitting diode,” Phys. Status Solidi A202(9), 1727–1732 (2005).
[CrossRef]

Schmidt, P. J.

V. Bachmann, T. Justel, A. Meijerink, C. Ronda, and P. J. Schmidt, “Luminescence properties of SrSi2O2N2 doped with divalent rare earth ions,” J. Lumin.121(2), 441–449 (2006).
[CrossRef]

Schnick, W.

J. A. Kechele, O. Oeckler, F. Stadler, and W. Schnick, “Structure elucidation of BaSi2O2N2 - A host lattice for rare-earth doped luminescent materials in phosphor-converted (pc)-LEDs,” Solid State Sci.11(2), 537–543 (2009).
[CrossRef]

V. Bachmann, C. Ronda, O. Oeckler, W. Schnick, and A. Meijerink, “Color point tuning for (Sr,Ca,Ba)Si2O2N2:Eu2+ for white light LEDs,” Chem. Mater.21(2), 316–325 (2009).
[CrossRef]

O. Oeckler, F. Stadler, T. Rosenthal, and W. Schnick, “Real structure of SrSi2O2N2,” Solid State Sci.9(2), 205–212 (2007).
[CrossRef]

F. Stadler and W. Schnick, “The new layer-silicates Ba3Si6O9N4 and Eu3Si6O9N4,” Z. Anorg. Allg. Chem.632(6), 949–954 (2006).
[CrossRef]

F. Stadler, R. Kraut, O. Oeckler, S. Schmid, and W. Schnick, “Synthesis, crystal structure and solid-state NMR spectroscopic investigation of the oxonitridosilicate BaSi6N8O,” ChemInform36(43), 1773–1778 (2005).
[CrossRef]

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Höppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all-nitride phosphor-converted white light emitting diode,” Phys. Status Solidi A202(9), 1727–1732 (2005).
[CrossRef]

H. A. Höppe, F. Stadler, O. Oeckler, and W. Schnick, “Ca[Si2O2N2] - A novel layer silicate,” Angew. Chem. Int. Ed.43(41), 5540–5542 (2004).
[CrossRef]

Smet, P. F.

P. F. Smet, K. Van den Eeckhout, A. J. J. Bos, E. van der Kolk, and P. Dorenbos, “Temperature and wavelength dependent trap filling in M2Si5N8:Eu (M = Ca, Sr, Ba) persistent phosphors,” J. Lumin.132(3), 682–689 (2012).
[CrossRef]

K. Korthout, K. Van den Eeckhout, J. Botterman, S. Nikitenko, D. Poelman, and P. F. Smet, “Luminescence and x-ray absorption measurements of persistent SrAl2O4:Eu,Dy powders: Evidence for valence state changes,” Phys. Rev. B84(8), 085140 (2011).
[CrossRef]

K. Van den Eeckhout, P. F. Smet, and D. Poelman, “Luminescent afterglow behavior in the M2Si5N8: Eu family (M = Ca, Sr, Ba),” Materials4(6), 980–990 (2011).
[CrossRef]

P. F. Smet, A. B. Parmentier, and D. Poelman, “Selecting conversion phosphors for white light-emitting diodes,” J. Electrochem. Soc.158(6), R37–R54 (2011).
[CrossRef]

K. Van den Eeckhout, P. F. Smet, and D. Poelman, “Persistent luminescence in Eu2+-doped compounds: a review,” Materials3(4), 2536–2566 (2010).
[CrossRef]

D. Poelman, N. Avci, and P. F. Smet, “Measured luminance and visual appearance of multi-color persistent phosphors,” Opt. Express17(1), 358–364 (2009).
[CrossRef] [PubMed]

Stadler, F.

J. A. Kechele, O. Oeckler, F. Stadler, and W. Schnick, “Structure elucidation of BaSi2O2N2 - A host lattice for rare-earth doped luminescent materials in phosphor-converted (pc)-LEDs,” Solid State Sci.11(2), 537–543 (2009).
[CrossRef]

O. Oeckler, F. Stadler, T. Rosenthal, and W. Schnick, “Real structure of SrSi2O2N2,” Solid State Sci.9(2), 205–212 (2007).
[CrossRef]

F. Stadler and W. Schnick, “The new layer-silicates Ba3Si6O9N4 and Eu3Si6O9N4,” Z. Anorg. Allg. Chem.632(6), 949–954 (2006).
[CrossRef]

F. Stadler, R. Kraut, O. Oeckler, S. Schmid, and W. Schnick, “Synthesis, crystal structure and solid-state NMR spectroscopic investigation of the oxonitridosilicate BaSi6N8O,” ChemInform36(43), 1773–1778 (2005).
[CrossRef]

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Höppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all-nitride phosphor-converted white light emitting diode,” Phys. Status Solidi A202(9), 1727–1732 (2005).
[CrossRef]

H. A. Höppe, F. Stadler, O. Oeckler, and W. Schnick, “Ca[Si2O2N2] - A novel layer silicate,” Angew. Chem. Int. Ed.43(41), 5540–5542 (2004).
[CrossRef]

Takeuchi, N.

T. Matsuzawa, Y. Aoki, N. Takeuchi, and Y. Murayama, “New long phosphorescent phosphor with high brightness, SrAl2O4:Eu2+,Dy3+,” J. Electrochem. Soc.143(8), 2670–2673 (1996).
[CrossRef]

Van den Eeckhout, K.

P. F. Smet, K. Van den Eeckhout, A. J. J. Bos, E. van der Kolk, and P. Dorenbos, “Temperature and wavelength dependent trap filling in M2Si5N8:Eu (M = Ca, Sr, Ba) persistent phosphors,” J. Lumin.132(3), 682–689 (2012).
[CrossRef]

K. Korthout, K. Van den Eeckhout, J. Botterman, S. Nikitenko, D. Poelman, and P. F. Smet, “Luminescence and x-ray absorption measurements of persistent SrAl2O4:Eu,Dy powders: Evidence for valence state changes,” Phys. Rev. B84(8), 085140 (2011).
[CrossRef]

K. Van den Eeckhout, P. F. Smet, and D. Poelman, “Luminescent afterglow behavior in the M2Si5N8: Eu family (M = Ca, Sr, Ba),” Materials4(6), 980–990 (2011).
[CrossRef]

K. Van den Eeckhout, P. F. Smet, and D. Poelman, “Persistent luminescence in Eu2+-doped compounds: a review,” Materials3(4), 2536–2566 (2010).
[CrossRef]

van der Kolk, E.

P. F. Smet, K. Van den Eeckhout, A. J. J. Bos, E. van der Kolk, and P. Dorenbos, “Temperature and wavelength dependent trap filling in M2Si5N8:Eu (M = Ca, Sr, Ba) persistent phosphors,” J. Lumin.132(3), 682–689 (2012).
[CrossRef]

A. J. J. Bos, R. M. van Duijvenvoorde, E. van der Kolk, W. Drozdowski, and P. Dorenbos, “Thermoluminescence excitation spectroscopy: A versatile technique to study persistent luminescence phosphors,” J. Lumin.131(7), 1465–1471 (2011).
[CrossRef]

van Duijvenvoorde, R. M.

A. J. J. Bos, R. M. van Duijvenvoorde, E. van der Kolk, W. Drozdowski, and P. Dorenbos, “Thermoluminescence excitation spectroscopy: A versatile technique to study persistent luminescence phosphors,” J. Lumin.131(7), 1465–1471 (2011).
[CrossRef]

Wang, M. Y.

M. Y. Wang, X. Zhang, Z. D. Hao, X. G. Ren, Y. S. Luo, H. F. Zhao, X. J. Wang, and J. H. Zhang, “Long-lasting phosphorescence in BaSi2O2N2:Eu2+ and Ba2SiO4:Eu2+ phases for x-ray and cathode ray tubes,” J. Electrochem. Soc.157(2), H178–H181 (2010).
[CrossRef]

Wang, X. J.

M. Y. Wang, X. Zhang, Z. D. Hao, X. G. Ren, Y. S. Luo, H. F. Zhao, X. J. Wang, and J. H. Zhang, “Long-lasting phosphorescence in BaSi2O2N2:Eu2+ and Ba2SiO4:Eu2+ phases for x-ray and cathode ray tubes,” J. Electrochem. Soc.157(2), H178–H181 (2010).
[CrossRef]

Xie, R. J.

R. J. Xie, N. Hirosaki, K. Sakuma, and N. Kimura, “White light-emitting diodes (LEDs) using (oxy) nitride phosphors,” J. Phys. D Appl. Phys.41(14), 144013 (2008).
[CrossRef]

Zhang, J. H.

M. Y. Wang, X. Zhang, Z. D. Hao, X. G. Ren, Y. S. Luo, H. F. Zhao, X. J. Wang, and J. H. Zhang, “Long-lasting phosphorescence in BaSi2O2N2:Eu2+ and Ba2SiO4:Eu2+ phases for x-ray and cathode ray tubes,” J. Electrochem. Soc.157(2), H178–H181 (2010).
[CrossRef]

Zhang, X.

M. Y. Wang, X. Zhang, Z. D. Hao, X. G. Ren, Y. S. Luo, H. F. Zhao, X. J. Wang, and J. H. Zhang, “Long-lasting phosphorescence in BaSi2O2N2:Eu2+ and Ba2SiO4:Eu2+ phases for x-ray and cathode ray tubes,” J. Electrochem. Soc.157(2), H178–H181 (2010).
[CrossRef]

Zhao, H. F.

M. Y. Wang, X. Zhang, Z. D. Hao, X. G. Ren, Y. S. Luo, H. F. Zhao, X. J. Wang, and J. H. Zhang, “Long-lasting phosphorescence in BaSi2O2N2:Eu2+ and Ba2SiO4:Eu2+ phases for x-ray and cathode ray tubes,” J. Electrochem. Soc.157(2), H178–H181 (2010).
[CrossRef]

Angew. Chem. Int. Ed. (1)

H. A. Höppe, F. Stadler, O. Oeckler, and W. Schnick, “Ca[Si2O2N2] - A novel layer silicate,” Angew. Chem. Int. Ed.43(41), 5540–5542 (2004).
[CrossRef]

Chem. Mater. (1)

V. Bachmann, C. Ronda, O. Oeckler, W. Schnick, and A. Meijerink, “Color point tuning for (Sr,Ca,Ba)Si2O2N2:Eu2+ for white light LEDs,” Chem. Mater.21(2), 316–325 (2009).
[CrossRef]

ChemInform (1)

F. Stadler, R. Kraut, O. Oeckler, S. Schmid, and W. Schnick, “Synthesis, crystal structure and solid-state NMR spectroscopic investigation of the oxonitridosilicate BaSi6N8O,” ChemInform36(43), 1773–1778 (2005).
[CrossRef]

J. Electrochem. Soc. (3)

P. F. Smet, A. B. Parmentier, and D. Poelman, “Selecting conversion phosphors for white light-emitting diodes,” J. Electrochem. Soc.158(6), R37–R54 (2011).
[CrossRef]

T. Matsuzawa, Y. Aoki, N. Takeuchi, and Y. Murayama, “New long phosphorescent phosphor with high brightness, SrAl2O4:Eu2+,Dy3+,” J. Electrochem. Soc.143(8), 2670–2673 (1996).
[CrossRef]

M. Y. Wang, X. Zhang, Z. D. Hao, X. G. Ren, Y. S. Luo, H. F. Zhao, X. J. Wang, and J. H. Zhang, “Long-lasting phosphorescence in BaSi2O2N2:Eu2+ and Ba2SiO4:Eu2+ phases for x-ray and cathode ray tubes,” J. Electrochem. Soc.157(2), H178–H181 (2010).
[CrossRef]

J. Lumin. (3)

A. J. J. Bos, R. M. van Duijvenvoorde, E. van der Kolk, W. Drozdowski, and P. Dorenbos, “Thermoluminescence excitation spectroscopy: A versatile technique to study persistent luminescence phosphors,” J. Lumin.131(7), 1465–1471 (2011).
[CrossRef]

P. F. Smet, K. Van den Eeckhout, A. J. J. Bos, E. van der Kolk, and P. Dorenbos, “Temperature and wavelength dependent trap filling in M2Si5N8:Eu (M = Ca, Sr, Ba) persistent phosphors,” J. Lumin.132(3), 682–689 (2012).
[CrossRef]

V. Bachmann, T. Justel, A. Meijerink, C. Ronda, and P. J. Schmidt, “Luminescence properties of SrSi2O2N2 doped with divalent rare earth ions,” J. Lumin.121(2), 441–449 (2006).
[CrossRef]

J. Phys. D Appl. Phys. (1)

R. J. Xie, N. Hirosaki, K. Sakuma, and N. Kimura, “White light-emitting diodes (LEDs) using (oxy) nitride phosphors,” J. Phys. D Appl. Phys.41(14), 144013 (2008).
[CrossRef]

Materials (2)

K. Van den Eeckhout, P. F. Smet, and D. Poelman, “Persistent luminescence in Eu2+-doped compounds: a review,” Materials3(4), 2536–2566 (2010).
[CrossRef]

K. Van den Eeckhout, P. F. Smet, and D. Poelman, “Luminescent afterglow behavior in the M2Si5N8: Eu family (M = Ca, Sr, Ba),” Materials4(6), 980–990 (2011).
[CrossRef]

Opt. Express (1)

Phys. Rev. B (1)

K. Korthout, K. Van den Eeckhout, J. Botterman, S. Nikitenko, D. Poelman, and P. F. Smet, “Luminescence and x-ray absorption measurements of persistent SrAl2O4:Eu,Dy powders: Evidence for valence state changes,” Phys. Rev. B84(8), 085140 (2011).
[CrossRef]

Phys. Status Solidi A (1)

R. Mueller-Mach, G. Mueller, M. R. Krames, H. A. Höppe, F. Stadler, W. Schnick, T. Juestel, and P. Schmidt, “Highly efficient all-nitride phosphor-converted white light emitting diode,” Phys. Status Solidi A202(9), 1727–1732 (2005).
[CrossRef]

Solid State Sci. (2)

J. A. Kechele, O. Oeckler, F. Stadler, and W. Schnick, “Structure elucidation of BaSi2O2N2 - A host lattice for rare-earth doped luminescent materials in phosphor-converted (pc)-LEDs,” Solid State Sci.11(2), 537–543 (2009).
[CrossRef]

O. Oeckler, F. Stadler, T. Rosenthal, and W. Schnick, “Real structure of SrSi2O2N2,” Solid State Sci.9(2), 205–212 (2007).
[CrossRef]

Z. Anorg. Allg. Chem. (1)

F. Stadler and W. Schnick, “The new layer-silicates Ba3Si6O9N4 and Eu3Si6O9N4,” Z. Anorg. Allg. Chem.632(6), 949–954 (2006).
[CrossRef]

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Figures (5)

Fig. 1
Fig. 1

x-ray diffraction patterns of MSi2O2N2 (colored traces) along with their reference patterns (black).

Fig. 2
Fig. 2

Normalized excitation and emission spectra of MSi2O2N2:Eu (with M = Ba, Sr, Ca) at room temperature. The emission spectra (solid lines) were recorded for λexc = 380 nm. The excitation spectra (dashed lines) were recorded for the emission at 493 nm for M = Ba, 539 nm for M = Sr and 556 nm for M = Ca.

Fig. 3
Fig. 3

Decay at room temperature of the afterglow intensity of MSi2O2N2:Eu (with M = Ba, Sr, Ca) after 1 min excitation with a Xe arc lamp at 1000 lux.

Fig. 4
Fig. 4

Decay of the afterglow intensity of MSi2O2N2:Eu (with M = Ba, Sr, Ca) after 30 s excitation with 280 nm UV radiation (left) and 425 nm violet light (right).

Fig. 5
Fig. 5

(top) Normalized TL excitation contour plots for MSi2O2N2:Eu. Heating rate was 5 °C/s. (bottom, left) TL glow curves and (bottom, right) trap filling spectra for MSi2O2N2:Eu, extracted from the TL excitation contour plots.

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