Abstract

We report on the preparation of transparent and colorless green-and red-emitting luminous glasses by sintering high-silica porous glass impregnated with rare-earth ions. These kinds of glasses can be efficiently excited by near-UV sources. The fluorescence of the glasses under near-UV excitation is dependent on energy transfer processes. In order to obtain strong visible emission, it is necessary to co-dope some optically inert rare-earth ions into the glasses. The roles of the optically inert rare-earth ions are discussed.

© 2009 Optical Society of America

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  2. X. Y. Y. Sun, J. H. Zhang, X. Zhang, S. Z. Lu, and X. J. Wang, "A white light phosphor suitable for near ultraviolet excitation," J. Lumin 122, 955-957 (2007).
    [CrossRef]
  3. M. Yamada, T. Naitou, K. Izuno, H. Tamaki, Y. Murazaki, M. Kameshima, and T. Mukai, "Red-enhanced white-light-emitting diode using a new red phosphor," Jpn. J. Appl. Phys. Part. 42, L20-L23 (2003).
    [CrossRef]
  4. Y. Zheng and A. G. Clare, "Rare-earth doped glasses for conversion of near ultraviolet light to white light," Phys. Chem. Glasses 46, 467-471 (2005).
  5. N. Eljouhari, C. Parent, J. C. Zhang, A. Daoudi, and G. Leflem, "White-Light Generation Using Fluorescent Glasses Activated by Ce3+, Tb3+ and Mn2+ Ions," J. Phys. IV 2, 257-260 (1992).
  6. U. Caldino, A. Speghini, and M. Bettinelli, "Optical spectroscopy of zinc metaphosphate glasses activated by Ce3+ and Tb3+ ions," J. Phys.: Condens. Matter 18, 3499-3508 (2006).
    [CrossRef]
  7. J. C. Zhang, C. Parent, G. L. Flem, and P. Hagenmuller, "White light emitting glasses," J. Solid. State. Chem 93, 17-29 (1991).
    [CrossRef]
  8. W. Liu, D. P. Chen, H. Miyoshi, K. Kadono, and T. Akai, "Colorless transparent fluorescence material at the VUV excitation: The leached sintered glass with impregnation of Tb3+ ions," Chem. Lett. 34, 1176-1177 (2005).
    [CrossRef]
  9. W. Liu, D. P. Chen, H. Miyoshi, K. Kadono, and T. Akai, "Tb3+-impregnated, non-porous silica glass possessing intense green luminescence under UV and VUV excitation," J. Non-Cryst. Solids 352, 2969-2976 (2006).
    [CrossRef]
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    [CrossRef]
  14. A. J. Silversmith, D. M. Boye, K. S. Brewer, C. E. Gillespie, Y. Lu, and D. L. Campbell, "5D3-->7FJ emission in terbium-doped sol-gel glasses," J. Lumin 121, 14-20 (2006).
    [CrossRef]
  15. R. M. Almeida, H. Cristina Vasconcelos, M. Clara Goncalves, and L. F. Santos, "XPS and NEXAFS studies of rare-earth doped amorphous sol-gel films," J. Non-Cryst. Solids 232-234, 65-71 (1998).
    [CrossRef]
  16. K. S. Sohn, Y. Y. Choi, and H. D. Park, "Photoluminescence behavior of Tb3+ -activated YBO3 phosphors," J. Electrochem. Soc. 147, 1988-1992 (2000).
    [CrossRef]
  17. H. Ronde and G. Blasse, "The nature of the electronic transitions of the vanadate group," J. Inorg. Nucl. Chem. 40, 215-219 (1978).
    [CrossRef]
  18. G. Blasse, "Some considerations on rare-earth activated phosphors," J. Lumin 1-2, 766-777 (1970).
    [CrossRef]

2007 (1)

X. Y. Y. Sun, J. H. Zhang, X. Zhang, S. Z. Lu, and X. J. Wang, "A white light phosphor suitable for near ultraviolet excitation," J. Lumin 122, 955-957 (2007).
[CrossRef]

2006 (3)

U. Caldino, A. Speghini, and M. Bettinelli, "Optical spectroscopy of zinc metaphosphate glasses activated by Ce3+ and Tb3+ ions," J. Phys.: Condens. Matter 18, 3499-3508 (2006).
[CrossRef]

W. Liu, D. P. Chen, H. Miyoshi, K. Kadono, and T. Akai, "Tb3+-impregnated, non-porous silica glass possessing intense green luminescence under UV and VUV excitation," J. Non-Cryst. Solids 352, 2969-2976 (2006).
[CrossRef]

A. J. Silversmith, D. M. Boye, K. S. Brewer, C. E. Gillespie, Y. Lu, and D. L. Campbell, "5D3-->7FJ emission in terbium-doped sol-gel glasses," J. Lumin 121, 14-20 (2006).
[CrossRef]

2005 (3)

W. Liu, D. P. Chen, H. Miyoshi, K. Kadono, and T. Akai, "Colorless transparent fluorescence material at the VUV excitation: The leached sintered glass with impregnation of Tb3+ ions," Chem. Lett. 34, 1176-1177 (2005).
[CrossRef]

D. P. Chen, H. Miyoshi, T. Akai, and T. Yazawa, "Colorless transparent fluorescence material: Sintered porous glass containing rare-earth and transition-metal ions," Appl. Phys. Lett. 86, 231908 (2005).
[CrossRef]

Y. Zheng and A. G. Clare, "Rare-earth doped glasses for conversion of near ultraviolet light to white light," Phys. Chem. Glasses 46, 467-471 (2005).

2003 (1)

M. Yamada, T. Naitou, K. Izuno, H. Tamaki, Y. Murazaki, M. Kameshima, and T. Mukai, "Red-enhanced white-light-emitting diode using a new red phosphor," Jpn. J. Appl. Phys. Part. 42, L20-L23 (2003).
[CrossRef]

2000 (1)

K. S. Sohn, Y. Y. Choi, and H. D. Park, "Photoluminescence behavior of Tb3+ -activated YBO3 phosphors," J. Electrochem. Soc. 147, 1988-1992 (2000).
[CrossRef]

1999 (1)

R. Martín, V. D. Rodríguez, U. R. Rodríguez-Mendoza, V. Lavín, E. Montoya, and D. Jaque, "Energy transfer with migration. Generalization of the Yokota-Tanimoto model for any kind of multipole interaction," J. Chem. Phys. 111, 1191-1194 (1999).
[CrossRef]

1998 (1)

R. M. Almeida, H. Cristina Vasconcelos, M. Clara Goncalves, and L. F. Santos, "XPS and NEXAFS studies of rare-earth doped amorphous sol-gel films," J. Non-Cryst. Solids 232-234, 65-71 (1998).
[CrossRef]

1992 (1)

N. Eljouhari, C. Parent, J. C. Zhang, A. Daoudi, and G. Leflem, "White-Light Generation Using Fluorescent Glasses Activated by Ce3+, Tb3+ and Mn2+ Ions," J. Phys. IV 2, 257-260 (1992).

1991 (1)

J. C. Zhang, C. Parent, G. L. Flem, and P. Hagenmuller, "White light emitting glasses," J. Solid. State. Chem 93, 17-29 (1991).
[CrossRef]

1978 (1)

H. Ronde and G. Blasse, "The nature of the electronic transitions of the vanadate group," J. Inorg. Nucl. Chem. 40, 215-219 (1978).
[CrossRef]

1970 (1)

G. Blasse, "Some considerations on rare-earth activated phosphors," J. Lumin 1-2, 766-777 (1970).
[CrossRef]

Akai, T.

W. Liu, D. P. Chen, H. Miyoshi, K. Kadono, and T. Akai, "Tb3+-impregnated, non-porous silica glass possessing intense green luminescence under UV and VUV excitation," J. Non-Cryst. Solids 352, 2969-2976 (2006).
[CrossRef]

W. Liu, D. P. Chen, H. Miyoshi, K. Kadono, and T. Akai, "Colorless transparent fluorescence material at the VUV excitation: The leached sintered glass with impregnation of Tb3+ ions," Chem. Lett. 34, 1176-1177 (2005).
[CrossRef]

D. P. Chen, H. Miyoshi, T. Akai, and T. Yazawa, "Colorless transparent fluorescence material: Sintered porous glass containing rare-earth and transition-metal ions," Appl. Phys. Lett. 86, 231908 (2005).
[CrossRef]

Almeida, R. M.

R. M. Almeida, H. Cristina Vasconcelos, M. Clara Goncalves, and L. F. Santos, "XPS and NEXAFS studies of rare-earth doped amorphous sol-gel films," J. Non-Cryst. Solids 232-234, 65-71 (1998).
[CrossRef]

Bettinelli, M.

U. Caldino, A. Speghini, and M. Bettinelli, "Optical spectroscopy of zinc metaphosphate glasses activated by Ce3+ and Tb3+ ions," J. Phys.: Condens. Matter 18, 3499-3508 (2006).
[CrossRef]

Blasse, G.

H. Ronde and G. Blasse, "The nature of the electronic transitions of the vanadate group," J. Inorg. Nucl. Chem. 40, 215-219 (1978).
[CrossRef]

G. Blasse, "Some considerations on rare-earth activated phosphors," J. Lumin 1-2, 766-777 (1970).
[CrossRef]

Boye, D. M.

A. J. Silversmith, D. M. Boye, K. S. Brewer, C. E. Gillespie, Y. Lu, and D. L. Campbell, "5D3-->7FJ emission in terbium-doped sol-gel glasses," J. Lumin 121, 14-20 (2006).
[CrossRef]

Brewer, K. S.

A. J. Silversmith, D. M. Boye, K. S. Brewer, C. E. Gillespie, Y. Lu, and D. L. Campbell, "5D3-->7FJ emission in terbium-doped sol-gel glasses," J. Lumin 121, 14-20 (2006).
[CrossRef]

Caldino, U.

U. Caldino, A. Speghini, and M. Bettinelli, "Optical spectroscopy of zinc metaphosphate glasses activated by Ce3+ and Tb3+ ions," J. Phys.: Condens. Matter 18, 3499-3508 (2006).
[CrossRef]

Campbell, D. L.

A. J. Silversmith, D. M. Boye, K. S. Brewer, C. E. Gillespie, Y. Lu, and D. L. Campbell, "5D3-->7FJ emission in terbium-doped sol-gel glasses," J. Lumin 121, 14-20 (2006).
[CrossRef]

Chen, D. P.

W. Liu, D. P. Chen, H. Miyoshi, K. Kadono, and T. Akai, "Tb3+-impregnated, non-porous silica glass possessing intense green luminescence under UV and VUV excitation," J. Non-Cryst. Solids 352, 2969-2976 (2006).
[CrossRef]

D. P. Chen, H. Miyoshi, T. Akai, and T. Yazawa, "Colorless transparent fluorescence material: Sintered porous glass containing rare-earth and transition-metal ions," Appl. Phys. Lett. 86, 231908 (2005).
[CrossRef]

W. Liu, D. P. Chen, H. Miyoshi, K. Kadono, and T. Akai, "Colorless transparent fluorescence material at the VUV excitation: The leached sintered glass with impregnation of Tb3+ ions," Chem. Lett. 34, 1176-1177 (2005).
[CrossRef]

Choi, Y. Y.

K. S. Sohn, Y. Y. Choi, and H. D. Park, "Photoluminescence behavior of Tb3+ -activated YBO3 phosphors," J. Electrochem. Soc. 147, 1988-1992 (2000).
[CrossRef]

Clara Goncalves, M.

R. M. Almeida, H. Cristina Vasconcelos, M. Clara Goncalves, and L. F. Santos, "XPS and NEXAFS studies of rare-earth doped amorphous sol-gel films," J. Non-Cryst. Solids 232-234, 65-71 (1998).
[CrossRef]

Clare, A. G.

Y. Zheng and A. G. Clare, "Rare-earth doped glasses for conversion of near ultraviolet light to white light," Phys. Chem. Glasses 46, 467-471 (2005).

Cristina Vasconcelos, H.

R. M. Almeida, H. Cristina Vasconcelos, M. Clara Goncalves, and L. F. Santos, "XPS and NEXAFS studies of rare-earth doped amorphous sol-gel films," J. Non-Cryst. Solids 232-234, 65-71 (1998).
[CrossRef]

Daoudi, A.

N. Eljouhari, C. Parent, J. C. Zhang, A. Daoudi, and G. Leflem, "White-Light Generation Using Fluorescent Glasses Activated by Ce3+, Tb3+ and Mn2+ Ions," J. Phys. IV 2, 257-260 (1992).

Eljouhari, N.

N. Eljouhari, C. Parent, J. C. Zhang, A. Daoudi, and G. Leflem, "White-Light Generation Using Fluorescent Glasses Activated by Ce3+, Tb3+ and Mn2+ Ions," J. Phys. IV 2, 257-260 (1992).

Flem, G. L.

J. C. Zhang, C. Parent, G. L. Flem, and P. Hagenmuller, "White light emitting glasses," J. Solid. State. Chem 93, 17-29 (1991).
[CrossRef]

Gillespie, C. E.

A. J. Silversmith, D. M. Boye, K. S. Brewer, C. E. Gillespie, Y. Lu, and D. L. Campbell, "5D3-->7FJ emission in terbium-doped sol-gel glasses," J. Lumin 121, 14-20 (2006).
[CrossRef]

Hagenmuller, P.

J. C. Zhang, C. Parent, G. L. Flem, and P. Hagenmuller, "White light emitting glasses," J. Solid. State. Chem 93, 17-29 (1991).
[CrossRef]

Izuno, K.

M. Yamada, T. Naitou, K. Izuno, H. Tamaki, Y. Murazaki, M. Kameshima, and T. Mukai, "Red-enhanced white-light-emitting diode using a new red phosphor," Jpn. J. Appl. Phys. Part. 42, L20-L23 (2003).
[CrossRef]

Jaque, D.

R. Martín, V. D. Rodríguez, U. R. Rodríguez-Mendoza, V. Lavín, E. Montoya, and D. Jaque, "Energy transfer with migration. Generalization of the Yokota-Tanimoto model for any kind of multipole interaction," J. Chem. Phys. 111, 1191-1194 (1999).
[CrossRef]

Kadono, K.

W. Liu, D. P. Chen, H. Miyoshi, K. Kadono, and T. Akai, "Tb3+-impregnated, non-porous silica glass possessing intense green luminescence under UV and VUV excitation," J. Non-Cryst. Solids 352, 2969-2976 (2006).
[CrossRef]

W. Liu, D. P. Chen, H. Miyoshi, K. Kadono, and T. Akai, "Colorless transparent fluorescence material at the VUV excitation: The leached sintered glass with impregnation of Tb3+ ions," Chem. Lett. 34, 1176-1177 (2005).
[CrossRef]

Kameshima, M.

M. Yamada, T. Naitou, K. Izuno, H. Tamaki, Y. Murazaki, M. Kameshima, and T. Mukai, "Red-enhanced white-light-emitting diode using a new red phosphor," Jpn. J. Appl. Phys. Part. 42, L20-L23 (2003).
[CrossRef]

Lavín, V.

R. Martín, V. D. Rodríguez, U. R. Rodríguez-Mendoza, V. Lavín, E. Montoya, and D. Jaque, "Energy transfer with migration. Generalization of the Yokota-Tanimoto model for any kind of multipole interaction," J. Chem. Phys. 111, 1191-1194 (1999).
[CrossRef]

Leflem, G.

N. Eljouhari, C. Parent, J. C. Zhang, A. Daoudi, and G. Leflem, "White-Light Generation Using Fluorescent Glasses Activated by Ce3+, Tb3+ and Mn2+ Ions," J. Phys. IV 2, 257-260 (1992).

Liu, W.

W. Liu, D. P. Chen, H. Miyoshi, K. Kadono, and T. Akai, "Tb3+-impregnated, non-porous silica glass possessing intense green luminescence under UV and VUV excitation," J. Non-Cryst. Solids 352, 2969-2976 (2006).
[CrossRef]

W. Liu, D. P. Chen, H. Miyoshi, K. Kadono, and T. Akai, "Colorless transparent fluorescence material at the VUV excitation: The leached sintered glass with impregnation of Tb3+ ions," Chem. Lett. 34, 1176-1177 (2005).
[CrossRef]

Lu, S. Z.

X. Y. Y. Sun, J. H. Zhang, X. Zhang, S. Z. Lu, and X. J. Wang, "A white light phosphor suitable for near ultraviolet excitation," J. Lumin 122, 955-957 (2007).
[CrossRef]

Lu, Y.

A. J. Silversmith, D. M. Boye, K. S. Brewer, C. E. Gillespie, Y. Lu, and D. L. Campbell, "5D3-->7FJ emission in terbium-doped sol-gel glasses," J. Lumin 121, 14-20 (2006).
[CrossRef]

Martín, R.

R. Martín, V. D. Rodríguez, U. R. Rodríguez-Mendoza, V. Lavín, E. Montoya, and D. Jaque, "Energy transfer with migration. Generalization of the Yokota-Tanimoto model for any kind of multipole interaction," J. Chem. Phys. 111, 1191-1194 (1999).
[CrossRef]

Miyoshi, H.

W. Liu, D. P. Chen, H. Miyoshi, K. Kadono, and T. Akai, "Tb3+-impregnated, non-porous silica glass possessing intense green luminescence under UV and VUV excitation," J. Non-Cryst. Solids 352, 2969-2976 (2006).
[CrossRef]

D. P. Chen, H. Miyoshi, T. Akai, and T. Yazawa, "Colorless transparent fluorescence material: Sintered porous glass containing rare-earth and transition-metal ions," Appl. Phys. Lett. 86, 231908 (2005).
[CrossRef]

W. Liu, D. P. Chen, H. Miyoshi, K. Kadono, and T. Akai, "Colorless transparent fluorescence material at the VUV excitation: The leached sintered glass with impregnation of Tb3+ ions," Chem. Lett. 34, 1176-1177 (2005).
[CrossRef]

Montoya, E.

R. Martín, V. D. Rodríguez, U. R. Rodríguez-Mendoza, V. Lavín, E. Montoya, and D. Jaque, "Energy transfer with migration. Generalization of the Yokota-Tanimoto model for any kind of multipole interaction," J. Chem. Phys. 111, 1191-1194 (1999).
[CrossRef]

Mukai, T.

M. Yamada, T. Naitou, K. Izuno, H. Tamaki, Y. Murazaki, M. Kameshima, and T. Mukai, "Red-enhanced white-light-emitting diode using a new red phosphor," Jpn. J. Appl. Phys. Part. 42, L20-L23 (2003).
[CrossRef]

Murazaki, Y.

M. Yamada, T. Naitou, K. Izuno, H. Tamaki, Y. Murazaki, M. Kameshima, and T. Mukai, "Red-enhanced white-light-emitting diode using a new red phosphor," Jpn. J. Appl. Phys. Part. 42, L20-L23 (2003).
[CrossRef]

Naitou, T.

M. Yamada, T. Naitou, K. Izuno, H. Tamaki, Y. Murazaki, M. Kameshima, and T. Mukai, "Red-enhanced white-light-emitting diode using a new red phosphor," Jpn. J. Appl. Phys. Part. 42, L20-L23 (2003).
[CrossRef]

Parent, C.

N. Eljouhari, C. Parent, J. C. Zhang, A. Daoudi, and G. Leflem, "White-Light Generation Using Fluorescent Glasses Activated by Ce3+, Tb3+ and Mn2+ Ions," J. Phys. IV 2, 257-260 (1992).

J. C. Zhang, C. Parent, G. L. Flem, and P. Hagenmuller, "White light emitting glasses," J. Solid. State. Chem 93, 17-29 (1991).
[CrossRef]

Park, H. D.

K. S. Sohn, Y. Y. Choi, and H. D. Park, "Photoluminescence behavior of Tb3+ -activated YBO3 phosphors," J. Electrochem. Soc. 147, 1988-1992 (2000).
[CrossRef]

Rodríguez, V. D.

R. Martín, V. D. Rodríguez, U. R. Rodríguez-Mendoza, V. Lavín, E. Montoya, and D. Jaque, "Energy transfer with migration. Generalization of the Yokota-Tanimoto model for any kind of multipole interaction," J. Chem. Phys. 111, 1191-1194 (1999).
[CrossRef]

Rodríguez-Mendoza, U. R.

R. Martín, V. D. Rodríguez, U. R. Rodríguez-Mendoza, V. Lavín, E. Montoya, and D. Jaque, "Energy transfer with migration. Generalization of the Yokota-Tanimoto model for any kind of multipole interaction," J. Chem. Phys. 111, 1191-1194 (1999).
[CrossRef]

Ronde, H.

H. Ronde and G. Blasse, "The nature of the electronic transitions of the vanadate group," J. Inorg. Nucl. Chem. 40, 215-219 (1978).
[CrossRef]

Santos, L. F.

R. M. Almeida, H. Cristina Vasconcelos, M. Clara Goncalves, and L. F. Santos, "XPS and NEXAFS studies of rare-earth doped amorphous sol-gel films," J. Non-Cryst. Solids 232-234, 65-71 (1998).
[CrossRef]

Silversmith, A. J.

A. J. Silversmith, D. M. Boye, K. S. Brewer, C. E. Gillespie, Y. Lu, and D. L. Campbell, "5D3-->7FJ emission in terbium-doped sol-gel glasses," J. Lumin 121, 14-20 (2006).
[CrossRef]

Sohn, K. S.

K. S. Sohn, Y. Y. Choi, and H. D. Park, "Photoluminescence behavior of Tb3+ -activated YBO3 phosphors," J. Electrochem. Soc. 147, 1988-1992 (2000).
[CrossRef]

Speghini, A.

U. Caldino, A. Speghini, and M. Bettinelli, "Optical spectroscopy of zinc metaphosphate glasses activated by Ce3+ and Tb3+ ions," J. Phys.: Condens. Matter 18, 3499-3508 (2006).
[CrossRef]

Sun, X. Y. Y.

X. Y. Y. Sun, J. H. Zhang, X. Zhang, S. Z. Lu, and X. J. Wang, "A white light phosphor suitable for near ultraviolet excitation," J. Lumin 122, 955-957 (2007).
[CrossRef]

Tamaki, H.

M. Yamada, T. Naitou, K. Izuno, H. Tamaki, Y. Murazaki, M. Kameshima, and T. Mukai, "Red-enhanced white-light-emitting diode using a new red phosphor," Jpn. J. Appl. Phys. Part. 42, L20-L23 (2003).
[CrossRef]

Wang, X. J.

X. Y. Y. Sun, J. H. Zhang, X. Zhang, S. Z. Lu, and X. J. Wang, "A white light phosphor suitable for near ultraviolet excitation," J. Lumin 122, 955-957 (2007).
[CrossRef]

Yamada, M.

M. Yamada, T. Naitou, K. Izuno, H. Tamaki, Y. Murazaki, M. Kameshima, and T. Mukai, "Red-enhanced white-light-emitting diode using a new red phosphor," Jpn. J. Appl. Phys. Part. 42, L20-L23 (2003).
[CrossRef]

Yazawa, T.

D. P. Chen, H. Miyoshi, T. Akai, and T. Yazawa, "Colorless transparent fluorescence material: Sintered porous glass containing rare-earth and transition-metal ions," Appl. Phys. Lett. 86, 231908 (2005).
[CrossRef]

Zhang, J. C.

N. Eljouhari, C. Parent, J. C. Zhang, A. Daoudi, and G. Leflem, "White-Light Generation Using Fluorescent Glasses Activated by Ce3+, Tb3+ and Mn2+ Ions," J. Phys. IV 2, 257-260 (1992).

J. C. Zhang, C. Parent, G. L. Flem, and P. Hagenmuller, "White light emitting glasses," J. Solid. State. Chem 93, 17-29 (1991).
[CrossRef]

Zhang, J. H.

X. Y. Y. Sun, J. H. Zhang, X. Zhang, S. Z. Lu, and X. J. Wang, "A white light phosphor suitable for near ultraviolet excitation," J. Lumin 122, 955-957 (2007).
[CrossRef]

Zhang, X.

X. Y. Y. Sun, J. H. Zhang, X. Zhang, S. Z. Lu, and X. J. Wang, "A white light phosphor suitable for near ultraviolet excitation," J. Lumin 122, 955-957 (2007).
[CrossRef]

Zheng, Y.

Y. Zheng and A. G. Clare, "Rare-earth doped glasses for conversion of near ultraviolet light to white light," Phys. Chem. Glasses 46, 467-471 (2005).

Appl. Phys. Lett. (1)

D. P. Chen, H. Miyoshi, T. Akai, and T. Yazawa, "Colorless transparent fluorescence material: Sintered porous glass containing rare-earth and transition-metal ions," Appl. Phys. Lett. 86, 231908 (2005).
[CrossRef]

Chem. Lett. (1)

W. Liu, D. P. Chen, H. Miyoshi, K. Kadono, and T. Akai, "Colorless transparent fluorescence material at the VUV excitation: The leached sintered glass with impregnation of Tb3+ ions," Chem. Lett. 34, 1176-1177 (2005).
[CrossRef]

J. Chem. Phys. (1)

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Figures (7)

Fig. 1.
Fig. 1.

Emission spectra (upper) and excitation spectra (lower) of Tb3+doped (a), Tb3+−Ce3+-codoped (b), and Tb3+−Ce3+-La3+-codoped (c) sintered porous glasses. The excitation and monitoring wavelengths are 350 and 543 nm, respectively. Tb3+-doped glass has a Tb3+ concentration of 0.3mol%. Tb3+−Ce3+-codoped glass has a Tb3+ concentration of 0.3mol% and a Ce3+ concentration of 0.08mol%. Tb3+−Ce3+-La3+-codoped glass has a Tb3+ concentration of 0.3mol%, a Ce3+ concentration of 0.07mol% and a La3+ concentration of 0.95mol%.

Fig. 2.
Fig. 2.

(a) and (b) are 5D3 and 5D4 emission spectra of Tb3+-La3+-codoped glasses under 254-nm excitation. (c) and (d) are the excitation spectra of 5D3 and 5D4 emission of Tb3+ obtained by monitoring 379nm and 543nm emissions, respectively. All of the glasses have Tb3+ concentration of 0.3mol%. The concentration of La3+ is 0mol% (A), 0.55mol% (B) and 0.95mol% (C), respectively.

Fig. 3.
Fig. 3.

Normalized fluorescence decay of 5D3→7F6 emission under 248nm excitation. The excitation source is KrF excimer laser with pulse width of 200ns and repetition rate of 2Hz. All of the glasses have Tb3+ concentration of 0.3mol%. The concentration of La3+ is 0mol% (A), 0.55mol% (B) and 0.95mol% (C), respectively. The red lines are fitted lines of decay curves corresponding to sample A, B, and C, respectively.

Fig. 4.
Fig. 4.

Microscopic interpreting of the role of La3+: (a) Tb-Ce co-doping. There is always coexisting of quenched Tb3+ and emitting Tb3+. (b) Tb-Ce-La co-doping. The Tb3+ clusters are separated by La3+. It seems as if the Tb3+ clusters release parts of Tb3+, which are capable of emitting.

Fig. 5.
Fig. 5.

Legend for Microscopic schematics

Fig. 6.
Fig. 6.

Emission and excitation spectra of Eu3+ in (a) Eu3+ doped, (b) Eu3+, V5+ codoped, and (c) Eu3+, V5+-Y3+ codoped glasses. Excitation and monitoring wavelengths are 350 and 616 nm, respectively. Eu3+ doped glass has a Eu3+ concentration of 0.7mol%. Eu3+, V5+ codoped glass has a Eu3+ concentration of 0.7mol% and a V5+ concentration of 1.5mol%. Eu3+, V5+-Y3+ codoped glass has a Eu3+ concentration of 0.7mol% and a V5+ concentration of 1.44mol% and a Y3+ concentration of 1.8mol%.

Fig. 7.
Fig. 7.

Photographs of luminous glasses exhibiting red, green, and blue emission under 365-nm irradiation. The a, b, c, d, and e samples correspond to Eu3+, V5+-Y3+-codoped glass, Tb3+−Ce3+−La3+-codoped glass, Eu2+-doped glass, Eu3+, V5+-codoped glass, and Tb3+−Ce3+-codoped glass, respectively. All samples were prepared from sintered porous glass impregnated with rare-earth ions.

Tables (1)

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Table 1. Parameters for the Inokuti and Hirayama Mechanism for the 5D3→7F6 transition of Tb3+ in sintered porous glass.

Equations (2)

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( 5 D 3 , 7 F 6 ) ( 5 D 4 , 7 F 0 )
I ( t ) = A exp ( t τ ) + ( 1 A ) exp [ t τ π ( C C 0 ) ( t τ ) 1 / 2 ]

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