Abstract

Ho3+/Yb3+/Tm3+ codoped 12CaO·7Al2O3 single crystal exhibiting upconversion white light under 980nm excitation have been successfully prepared by Czochralski method. CIE coordinate of 0.4mol%Ho3+/2.0mol%Yb3+/0.5mol%Tm3+/C12A7 single crystal under 980nm excitation of 800mW is (0.35, 0.33), which is very close to the white emission center (0.33, 0.33). The color of the upconversion luminescence can be changed by simply adjusting the excitation power. The pump dependence and luminescent decay dynamics suggest that the blue upconversion emissions are populated by a three-photon process, the green emissions are two-photon process, and the red emissions are a combination of two and three photons processes. The upconversion mechanism is analyzed in detail. 12CaO·7Al2O3 single crystal with white upconversion emissions is expected to have broad application prospects in solid-state multicolor display and instrument integration.

© 2015 Optical Society of America

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References

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    [Crossref]
  3. K. Teshima, S. H. Lee, N. Shikine, T. Wakabayashi, K. Yubuta, T. Shishido, and S. Oishi, “Flux Growth of Highly Crystalline NaYF4:Ln (Ln = Yb, Er, Tm) Crystals with Upconversion Fluorescence,” Cryst. Growth Des. 11(4), 995–999 (2011).
    [Crossref]
  4. D. Avram, B. Cojocaru, M. Florea, V. Teodorescu, I. Tiseanu, and C. Tiseanu, “NIR to Vis-NIR up-conversion and X-ray excited emission of Er doped high Z BiOCI,” Opt. Mater. Express 5(5), 951–962 (2015).
    [Crossref]
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    [Crossref]
  6. E. Heumann, S. Bär, H. Kretschmann, and G. Huber, “Diode-pumped continuous-wave green upconversion lasing of Er3+:LiLuF4 using multipass pumping,” Opt. Lett. 27(19), 1699–1701 (2002).
    [Crossref] [PubMed]
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    [Crossref]
  8. G. Y. Chen, Y. Liu, Y. G. Zhang, G. Somesfalean, Z. G. Zhang, Q. Sun, and F. P. Wang, “Conductive atomic force microscopy investigation of transverse current across metallic and semiconducting single-walled carbon nanotubes,” Appl. Phys. Lett. 91(12), 122103 (2007).
    [Crossref]
  9. Y. P. Li, J. H. Zhang, Y. S. Luo, X. Zhang, Z. D. Hao, and X. J. Wang, “Color control and white light generation of upconversion luminescence by operating dopant concentrations and pump densities in Yb3+, Er3+ and Tm3+ tri-doped Lu2O3 nanocrystals,” J. Mater. Chem. 21(9), 2895–2900 (2011).
    [Crossref]
  10. Q. Q. Duan, F. Qin, D. Wang, W. Xu, J. M. Cheng, Z. G. Zhang, and W. W. Cao, “Quantum cutting mechanism in Tb3+-Yb3+ co-doped oxyfluoride glass,” J. Appl. Phys. 110(11), 113503 (2011).
    [Crossref]
  11. F. Wang, R. Deng, J. Wang, Q. Wang, Y. Han, H. Zhu, X. Chen, and X. Liu, “Tuning upconversion through energy migration in core-shell nanoparticles,” Nat. Mater. 10(12), 968–973 (2011).
    [Crossref] [PubMed]
  12. S. Ye, B. Zhu, J. Luo, J. Chen, G. Lakshminarayana, and J. Qiu, “Enhanced cooperative quantum cutting in Tm3+- Yb3+ codoped glass ceramics containing LaF3 nanocrystals,” Opt. Express 16(12), 8989–8994 (2008).
    [Crossref] [PubMed]
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    [Crossref]
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    [Crossref]
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    [Crossref]
  16. M. Miyakawa, M. Hirano, T. Kamiya, and H. Hosono, “High electron doping to a wide band gap semiconductor 12CaO∙7Al2O3 thin film,” Appl. Phys. Lett. 90(18), 182105 (2007).
    [Crossref]
  17. M. Miyakawa, H. Hiramatsu, T. Kamiva, M. Hirano, and H. Hosono, “Fabrication and electron transport properties of epitaxial films of electron-doped 12CaO⚫7Al2O3 and 12SrO⚫7Al2O3,” J. Solid State Chem. 183(2), 385–391 (2010).
    [Crossref]
  18. H. Hosono, S. W. Kim, M. Miyakawa, S. Matsuishi, and T. Kamiya, “Thin film and bulk fabrication of room-temperature-stable electride C12A7:e- utilizing reduced amorphous 12CaO⚫7Al2O3 (C12A7),” J. Non-Cryst. Solids 354(19-25), 2772–2776 (2008).
    [Crossref]
  19. M. Miyakawa and J. Ceram, “Fabrication of high-density electron-doped 12CaO·7Al2O3 thin films by physical and chemical processes,” Soc. Jpn. 117(1363), 395–401 (2009).
  20. M. Miyakawa, S. W. Kim, M. Hirano, Y. Kohama, H. Kawaji, T. Atake, H. Ikegami, K. Kono, and H. Hosono, “Superconductivity in an inorganic electride 12CaO x 7Al2O3:e-,” J. Am. Chem. Soc. 129(23), 7270–7271 (2007).
    [Crossref] [PubMed]
  21. L. Xing, Y. Xu, R. Wang, and W. Xu, “Influence of temperature on upconversion multicolor luminescence in Ho3+/Yb3+/Tm3+-doped LiNbO3 single crystal,” Opt. Lett. 38(14), 2535–2537 (2013).
    [Crossref] [PubMed]
  22. K. Kurashige, S. Ueda, M. Miyakawa, Y. Toda, S. Matsuishi, S. Kim, M. Hirano, and H. Hosono, “Growth of 12CaO⚫7Al2O3 single crystal with tetragonal symmetry by Czochralski method,” Thin Solid Films 516(17), 5772–5776 (2008).
    [Crossref]
  23. D. Wang, Y. Liu, C. Xu, Y. Liu, G. Wang, and X. Li, “Local microstructure and photoluminescence of Er-doped 12CaO⚫7Al2O3 powder,” J. Rare Earths 26(3), 433–438 (2008).
    [Crossref]
  24. S. Liao, R. Yao, Y. Liu, X. Chen, X. Hu, and F. Zheng, “Green up-conversion of C12A7-Ho3+ prepared by co-precipitation method,” J. Alloys Compd. 642(5), 7–14 (2015).
    [Crossref]
  25. E. Toldsepp, T. Avarmaa, V. Denks, E. Feldbach, M. Kirm, A. Maaroos, H. Mandar, and S. Vielhauer, “Synthesis and luminescence properties of Ce3+ doped nanoporous 12CaO⚫7Al2O3 powders and ceramics,” Opt. Mater. 32(8), 784–788 (2010).
    [Crossref]
  26. H. Guo, N. Dong, M. Yin, W. Zhang, L. Lou, and S. Xia, “Visible upconversion in rare earth ion-doped Gd2O3 nanocrystals,” J. Phys. Chem. B 108(50), 19205–19209 (2004).
    [Crossref]
  27. X. H. Pan, J. D. Yu, Y. Liu, S. Yoda, H. M. Yu, M. H. Zhang, F. Ai, F. Jin, and W. Q. Jin, “Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method,” J. Alloys Compd. 509(27), 7504–7507 (2011).
    [Crossref]
  28. H. X. Zhang, C. H. Kam, Y. Zhou, X. Q. Han, S. Buddhudu, Q. Xiang, Y. L. Lan, and Y. C. Chan, “Green upconversion luminescence in Er3+:BaTiO3 films,” Appl. Phys. Lett. 77(5), 609–611 (2000).
    [Crossref]

2015 (2)

S. Liao, R. Yao, Y. Liu, X. Chen, X. Hu, and F. Zheng, “Green up-conversion of C12A7-Ho3+ prepared by co-precipitation method,” J. Alloys Compd. 642(5), 7–14 (2015).
[Crossref]

D. Avram, B. Cojocaru, M. Florea, V. Teodorescu, I. Tiseanu, and C. Tiseanu, “NIR to Vis-NIR up-conversion and X-ray excited emission of Er doped high Z BiOCI,” Opt. Mater. Express 5(5), 951–962 (2015).
[Crossref]

2014 (1)

2013 (1)

2012 (1)

W. Q. Zou, C. Visser, J. A. Maduro, M. S. Pshenichnikov, and J. C. Hummelen, “Broadband dye-sensitized upconversion of near-infrared light,” Nat. Photonics 6(8), 560–564 (2012).
[Crossref]

2011 (6)

X. H. Pan, J. D. Yu, Y. Liu, S. Yoda, H. M. Yu, M. H. Zhang, F. Ai, F. Jin, and W. Q. Jin, “Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method,” J. Alloys Compd. 509(27), 7504–7507 (2011).
[Crossref]

K. Teshima, S. H. Lee, N. Shikine, T. Wakabayashi, K. Yubuta, T. Shishido, and S. Oishi, “Flux Growth of Highly Crystalline NaYF4:Ln (Ln = Yb, Er, Tm) Crystals with Upconversion Fluorescence,” Cryst. Growth Des. 11(4), 995–999 (2011).
[Crossref]

Y. P. Li, J. H. Zhang, Y. S. Luo, X. Zhang, Z. D. Hao, and X. J. Wang, “Color control and white light generation of upconversion luminescence by operating dopant concentrations and pump densities in Yb3+, Er3+ and Tm3+ tri-doped Lu2O3 nanocrystals,” J. Mater. Chem. 21(9), 2895–2900 (2011).
[Crossref]

Q. Q. Duan, F. Qin, D. Wang, W. Xu, J. M. Cheng, Z. G. Zhang, and W. W. Cao, “Quantum cutting mechanism in Tb3+-Yb3+ co-doped oxyfluoride glass,” J. Appl. Phys. 110(11), 113503 (2011).
[Crossref]

F. Wang, R. Deng, J. Wang, Q. Wang, Y. Han, H. Zhu, X. Chen, and X. Liu, “Tuning upconversion through energy migration in core-shell nanoparticles,” Nat. Mater. 10(12), 968–973 (2011).
[Crossref] [PubMed]

G. Z. Ren, S. J. Zeng, and J. H. Hao, “Tunable multicolor upconversion emissions and paramagnetic property of monodispersed bifunctional lanthanide-doped NaGdF4 nanorods,” J. Phys. Chem. C 115(41), 20141–20147 (2011).
[Crossref]

2010 (3)

M. Miyakawa, H. Hiramatsu, T. Kamiva, M. Hirano, and H. Hosono, “Fabrication and electron transport properties of epitaxial films of electron-doped 12CaO⚫7Al2O3 and 12SrO⚫7Al2O3,” J. Solid State Chem. 183(2), 385–391 (2010).
[Crossref]

N. Q. Wang, X. Zhao, C. M. Li, E. Y. B. Pun, and H. Lin, “Upconversion and color tunability in Tm3+/Ho3+/Yb3+ doped low phonon energy bismuth tellurite glasses,” J. Lumin. 130(6), 1044–1047 (2010).
[Crossref]

E. Toldsepp, T. Avarmaa, V. Denks, E. Feldbach, M. Kirm, A. Maaroos, H. Mandar, and S. Vielhauer, “Synthesis and luminescence properties of Ce3+ doped nanoporous 12CaO⚫7Al2O3 powders and ceramics,” Opt. Mater. 32(8), 784–788 (2010).
[Crossref]

2009 (1)

M. Miyakawa and J. Ceram, “Fabrication of high-density electron-doped 12CaO·7Al2O3 thin films by physical and chemical processes,” Soc. Jpn. 117(1363), 395–401 (2009).

2008 (4)

K. Kurashige, S. Ueda, M. Miyakawa, Y. Toda, S. Matsuishi, S. Kim, M. Hirano, and H. Hosono, “Growth of 12CaO⚫7Al2O3 single crystal with tetragonal symmetry by Czochralski method,” Thin Solid Films 516(17), 5772–5776 (2008).
[Crossref]

D. Wang, Y. Liu, C. Xu, Y. Liu, G. Wang, and X. Li, “Local microstructure and photoluminescence of Er-doped 12CaO⚫7Al2O3 powder,” J. Rare Earths 26(3), 433–438 (2008).
[Crossref]

H. Hosono, S. W. Kim, M. Miyakawa, S. Matsuishi, and T. Kamiya, “Thin film and bulk fabrication of room-temperature-stable electride C12A7:e- utilizing reduced amorphous 12CaO⚫7Al2O3 (C12A7),” J. Non-Cryst. Solids 354(19-25), 2772–2776 (2008).
[Crossref]

S. Ye, B. Zhu, J. Luo, J. Chen, G. Lakshminarayana, and J. Qiu, “Enhanced cooperative quantum cutting in Tm3+- Yb3+ codoped glass ceramics containing LaF3 nanocrystals,” Opt. Express 16(12), 8989–8994 (2008).
[Crossref] [PubMed]

2007 (3)

M. Miyakawa, M. Hirano, T. Kamiya, and H. Hosono, “High electron doping to a wide band gap semiconductor 12CaO∙7Al2O3 thin film,” Appl. Phys. Lett. 90(18), 182105 (2007).
[Crossref]

M. Miyakawa, S. W. Kim, M. Hirano, Y. Kohama, H. Kawaji, T. Atake, H. Ikegami, K. Kono, and H. Hosono, “Superconductivity in an inorganic electride 12CaO x 7Al2O3:e-,” J. Am. Chem. Soc. 129(23), 7270–7271 (2007).
[Crossref] [PubMed]

G. Y. Chen, Y. Liu, Y. G. Zhang, G. Somesfalean, Z. G. Zhang, Q. Sun, and F. P. Wang, “Conductive atomic force microscopy investigation of transverse current across metallic and semiconducting single-walled carbon nanotubes,” Appl. Phys. Lett. 91(12), 122103 (2007).
[Crossref]

2006 (1)

E. Heumann, S. Bar, K. Rademaker, G. Huber, S. Butterworth, A. Diening, and W. Seelert, “Semiconductor-laser-pumped high-power upconversion laser,” Appl. Phys. Lett. 88(6), 061108 (2006).
[Crossref]

2004 (2)

F. Auzel, “Upconversion and Anti-Stokes Processes with f and d Ions in Solids,” Chem. Rev. 104(1), 139–174 (2004).
[Crossref] [PubMed]

H. Guo, N. Dong, M. Yin, W. Zhang, L. Lou, and S. Xia, “Visible upconversion in rare earth ion-doped Gd2O3 nanocrystals,” J. Phys. Chem. B 108(50), 19205–19209 (2004).
[Crossref]

2002 (1)

2000 (1)

H. X. Zhang, C. H. Kam, Y. Zhou, X. Q. Han, S. Buddhudu, Q. Xiang, Y. L. Lan, and Y. C. Chan, “Green upconversion luminescence in Er3+:BaTiO3 films,” Appl. Phys. Lett. 77(5), 609–611 (2000).
[Crossref]

1971 (1)

J. A. Imlach, L. S. D. Glasser, and F. P. Glasser, “Excess oxygen and the stability of 12CaO.7A12O3,” Cement Concr. Res. 1(1), 57–61 (1971).
[Crossref]

Ai, F.

X. H. Pan, J. D. Yu, Y. Liu, S. Yoda, H. M. Yu, M. H. Zhang, F. Ai, F. Jin, and W. Q. Jin, “Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method,” J. Alloys Compd. 509(27), 7504–7507 (2011).
[Crossref]

Atake, T.

M. Miyakawa, S. W. Kim, M. Hirano, Y. Kohama, H. Kawaji, T. Atake, H. Ikegami, K. Kono, and H. Hosono, “Superconductivity in an inorganic electride 12CaO x 7Al2O3:e-,” J. Am. Chem. Soc. 129(23), 7270–7271 (2007).
[Crossref] [PubMed]

Auzel, F.

F. Auzel, “Upconversion and Anti-Stokes Processes with f and d Ions in Solids,” Chem. Rev. 104(1), 139–174 (2004).
[Crossref] [PubMed]

Avarmaa, T.

E. Toldsepp, T. Avarmaa, V. Denks, E. Feldbach, M. Kirm, A. Maaroos, H. Mandar, and S. Vielhauer, “Synthesis and luminescence properties of Ce3+ doped nanoporous 12CaO⚫7Al2O3 powders and ceramics,” Opt. Mater. 32(8), 784–788 (2010).
[Crossref]

Avram, D.

Bar, S.

E. Heumann, S. Bar, K. Rademaker, G. Huber, S. Butterworth, A. Diening, and W. Seelert, “Semiconductor-laser-pumped high-power upconversion laser,” Appl. Phys. Lett. 88(6), 061108 (2006).
[Crossref]

Bär, S.

Buddhudu, S.

H. X. Zhang, C. H. Kam, Y. Zhou, X. Q. Han, S. Buddhudu, Q. Xiang, Y. L. Lan, and Y. C. Chan, “Green upconversion luminescence in Er3+:BaTiO3 films,” Appl. Phys. Lett. 77(5), 609–611 (2000).
[Crossref]

Butterworth, S.

E. Heumann, S. Bar, K. Rademaker, G. Huber, S. Butterworth, A. Diening, and W. Seelert, “Semiconductor-laser-pumped high-power upconversion laser,” Appl. Phys. Lett. 88(6), 061108 (2006).
[Crossref]

Cao, W. W.

Q. Q. Duan, F. Qin, D. Wang, W. Xu, J. M. Cheng, Z. G. Zhang, and W. W. Cao, “Quantum cutting mechanism in Tb3+-Yb3+ co-doped oxyfluoride glass,” J. Appl. Phys. 110(11), 113503 (2011).
[Crossref]

Ceram, J.

M. Miyakawa and J. Ceram, “Fabrication of high-density electron-doped 12CaO·7Al2O3 thin films by physical and chemical processes,” Soc. Jpn. 117(1363), 395–401 (2009).

Chan, Y. C.

H. X. Zhang, C. H. Kam, Y. Zhou, X. Q. Han, S. Buddhudu, Q. Xiang, Y. L. Lan, and Y. C. Chan, “Green upconversion luminescence in Er3+:BaTiO3 films,” Appl. Phys. Lett. 77(5), 609–611 (2000).
[Crossref]

Chen, G. Y.

G. Y. Chen, Y. Liu, Y. G. Zhang, G. Somesfalean, Z. G. Zhang, Q. Sun, and F. P. Wang, “Conductive atomic force microscopy investigation of transverse current across metallic and semiconducting single-walled carbon nanotubes,” Appl. Phys. Lett. 91(12), 122103 (2007).
[Crossref]

Chen, J.

Chen, X.

S. Liao, R. Yao, Y. Liu, X. Chen, X. Hu, and F. Zheng, “Green up-conversion of C12A7-Ho3+ prepared by co-precipitation method,” J. Alloys Compd. 642(5), 7–14 (2015).
[Crossref]

F. Wang, R. Deng, J. Wang, Q. Wang, Y. Han, H. Zhu, X. Chen, and X. Liu, “Tuning upconversion through energy migration in core-shell nanoparticles,” Nat. Mater. 10(12), 968–973 (2011).
[Crossref] [PubMed]

Cheng, J. M.

Q. Q. Duan, F. Qin, D. Wang, W. Xu, J. M. Cheng, Z. G. Zhang, and W. W. Cao, “Quantum cutting mechanism in Tb3+-Yb3+ co-doped oxyfluoride glass,” J. Appl. Phys. 110(11), 113503 (2011).
[Crossref]

Cojocaru, B.

Deng, R.

F. Wang, R. Deng, J. Wang, Q. Wang, Y. Han, H. Zhu, X. Chen, and X. Liu, “Tuning upconversion through energy migration in core-shell nanoparticles,” Nat. Mater. 10(12), 968–973 (2011).
[Crossref] [PubMed]

Denks, V.

E. Toldsepp, T. Avarmaa, V. Denks, E. Feldbach, M. Kirm, A. Maaroos, H. Mandar, and S. Vielhauer, “Synthesis and luminescence properties of Ce3+ doped nanoporous 12CaO⚫7Al2O3 powders and ceramics,” Opt. Mater. 32(8), 784–788 (2010).
[Crossref]

Diening, A.

E. Heumann, S. Bar, K. Rademaker, G. Huber, S. Butterworth, A. Diening, and W. Seelert, “Semiconductor-laser-pumped high-power upconversion laser,” Appl. Phys. Lett. 88(6), 061108 (2006).
[Crossref]

Dong, N.

H. Guo, N. Dong, M. Yin, W. Zhang, L. Lou, and S. Xia, “Visible upconversion in rare earth ion-doped Gd2O3 nanocrystals,” J. Phys. Chem. B 108(50), 19205–19209 (2004).
[Crossref]

Duan, Q. Q.

Q. Q. Duan, F. Qin, D. Wang, W. Xu, J. M. Cheng, Z. G. Zhang, and W. W. Cao, “Quantum cutting mechanism in Tb3+-Yb3+ co-doped oxyfluoride glass,” J. Appl. Phys. 110(11), 113503 (2011).
[Crossref]

Feldbach, E.

E. Toldsepp, T. Avarmaa, V. Denks, E. Feldbach, M. Kirm, A. Maaroos, H. Mandar, and S. Vielhauer, “Synthesis and luminescence properties of Ce3+ doped nanoporous 12CaO⚫7Al2O3 powders and ceramics,” Opt. Mater. 32(8), 784–788 (2010).
[Crossref]

Florea, M.

Glasser, F. P.

J. A. Imlach, L. S. D. Glasser, and F. P. Glasser, “Excess oxygen and the stability of 12CaO.7A12O3,” Cement Concr. Res. 1(1), 57–61 (1971).
[Crossref]

Glasser, L. S. D.

J. A. Imlach, L. S. D. Glasser, and F. P. Glasser, “Excess oxygen and the stability of 12CaO.7A12O3,” Cement Concr. Res. 1(1), 57–61 (1971).
[Crossref]

Guo, H.

Y. L. Wei, X. M. Li, and H. Guo, “Enhanced upconversion in novel KLu2F7:Er3+ transparent oxyfluoride glass-ceramics,” Opt. Mater. Express 4(7), 1367–1372 (2014).
[Crossref]

H. Guo, N. Dong, M. Yin, W. Zhang, L. Lou, and S. Xia, “Visible upconversion in rare earth ion-doped Gd2O3 nanocrystals,” J. Phys. Chem. B 108(50), 19205–19209 (2004).
[Crossref]

Han, X. Q.

H. X. Zhang, C. H. Kam, Y. Zhou, X. Q. Han, S. Buddhudu, Q. Xiang, Y. L. Lan, and Y. C. Chan, “Green upconversion luminescence in Er3+:BaTiO3 films,” Appl. Phys. Lett. 77(5), 609–611 (2000).
[Crossref]

Han, Y.

F. Wang, R. Deng, J. Wang, Q. Wang, Y. Han, H. Zhu, X. Chen, and X. Liu, “Tuning upconversion through energy migration in core-shell nanoparticles,” Nat. Mater. 10(12), 968–973 (2011).
[Crossref] [PubMed]

Hao, J. H.

G. Z. Ren, S. J. Zeng, and J. H. Hao, “Tunable multicolor upconversion emissions and paramagnetic property of monodispersed bifunctional lanthanide-doped NaGdF4 nanorods,” J. Phys. Chem. C 115(41), 20141–20147 (2011).
[Crossref]

Hao, Z. D.

Y. P. Li, J. H. Zhang, Y. S. Luo, X. Zhang, Z. D. Hao, and X. J. Wang, “Color control and white light generation of upconversion luminescence by operating dopant concentrations and pump densities in Yb3+, Er3+ and Tm3+ tri-doped Lu2O3 nanocrystals,” J. Mater. Chem. 21(9), 2895–2900 (2011).
[Crossref]

Heumann, E.

E. Heumann, S. Bar, K. Rademaker, G. Huber, S. Butterworth, A. Diening, and W. Seelert, “Semiconductor-laser-pumped high-power upconversion laser,” Appl. Phys. Lett. 88(6), 061108 (2006).
[Crossref]

E. Heumann, S. Bär, H. Kretschmann, and G. Huber, “Diode-pumped continuous-wave green upconversion lasing of Er3+:LiLuF4 using multipass pumping,” Opt. Lett. 27(19), 1699–1701 (2002).
[Crossref] [PubMed]

Hiramatsu, H.

M. Miyakawa, H. Hiramatsu, T. Kamiva, M. Hirano, and H. Hosono, “Fabrication and electron transport properties of epitaxial films of electron-doped 12CaO⚫7Al2O3 and 12SrO⚫7Al2O3,” J. Solid State Chem. 183(2), 385–391 (2010).
[Crossref]

Hirano, M.

M. Miyakawa, H. Hiramatsu, T. Kamiva, M. Hirano, and H. Hosono, “Fabrication and electron transport properties of epitaxial films of electron-doped 12CaO⚫7Al2O3 and 12SrO⚫7Al2O3,” J. Solid State Chem. 183(2), 385–391 (2010).
[Crossref]

K. Kurashige, S. Ueda, M. Miyakawa, Y. Toda, S. Matsuishi, S. Kim, M. Hirano, and H. Hosono, “Growth of 12CaO⚫7Al2O3 single crystal with tetragonal symmetry by Czochralski method,” Thin Solid Films 516(17), 5772–5776 (2008).
[Crossref]

M. Miyakawa, M. Hirano, T. Kamiya, and H. Hosono, “High electron doping to a wide band gap semiconductor 12CaO∙7Al2O3 thin film,” Appl. Phys. Lett. 90(18), 182105 (2007).
[Crossref]

M. Miyakawa, S. W. Kim, M. Hirano, Y. Kohama, H. Kawaji, T. Atake, H. Ikegami, K. Kono, and H. Hosono, “Superconductivity in an inorganic electride 12CaO x 7Al2O3:e-,” J. Am. Chem. Soc. 129(23), 7270–7271 (2007).
[Crossref] [PubMed]

Hosono, H.

M. Miyakawa, H. Hiramatsu, T. Kamiva, M. Hirano, and H. Hosono, “Fabrication and electron transport properties of epitaxial films of electron-doped 12CaO⚫7Al2O3 and 12SrO⚫7Al2O3,” J. Solid State Chem. 183(2), 385–391 (2010).
[Crossref]

H. Hosono, S. W. Kim, M. Miyakawa, S. Matsuishi, and T. Kamiya, “Thin film and bulk fabrication of room-temperature-stable electride C12A7:e- utilizing reduced amorphous 12CaO⚫7Al2O3 (C12A7),” J. Non-Cryst. Solids 354(19-25), 2772–2776 (2008).
[Crossref]

K. Kurashige, S. Ueda, M. Miyakawa, Y. Toda, S. Matsuishi, S. Kim, M. Hirano, and H. Hosono, “Growth of 12CaO⚫7Al2O3 single crystal with tetragonal symmetry by Czochralski method,” Thin Solid Films 516(17), 5772–5776 (2008).
[Crossref]

M. Miyakawa, M. Hirano, T. Kamiya, and H. Hosono, “High electron doping to a wide band gap semiconductor 12CaO∙7Al2O3 thin film,” Appl. Phys. Lett. 90(18), 182105 (2007).
[Crossref]

M. Miyakawa, S. W. Kim, M. Hirano, Y. Kohama, H. Kawaji, T. Atake, H. Ikegami, K. Kono, and H. Hosono, “Superconductivity in an inorganic electride 12CaO x 7Al2O3:e-,” J. Am. Chem. Soc. 129(23), 7270–7271 (2007).
[Crossref] [PubMed]

Hu, X.

S. Liao, R. Yao, Y. Liu, X. Chen, X. Hu, and F. Zheng, “Green up-conversion of C12A7-Ho3+ prepared by co-precipitation method,” J. Alloys Compd. 642(5), 7–14 (2015).
[Crossref]

Huber, G.

E. Heumann, S. Bar, K. Rademaker, G. Huber, S. Butterworth, A. Diening, and W. Seelert, “Semiconductor-laser-pumped high-power upconversion laser,” Appl. Phys. Lett. 88(6), 061108 (2006).
[Crossref]

E. Heumann, S. Bär, H. Kretschmann, and G. Huber, “Diode-pumped continuous-wave green upconversion lasing of Er3+:LiLuF4 using multipass pumping,” Opt. Lett. 27(19), 1699–1701 (2002).
[Crossref] [PubMed]

Hummelen, J. C.

W. Q. Zou, C. Visser, J. A. Maduro, M. S. Pshenichnikov, and J. C. Hummelen, “Broadband dye-sensitized upconversion of near-infrared light,” Nat. Photonics 6(8), 560–564 (2012).
[Crossref]

Ikegami, H.

M. Miyakawa, S. W. Kim, M. Hirano, Y. Kohama, H. Kawaji, T. Atake, H. Ikegami, K. Kono, and H. Hosono, “Superconductivity in an inorganic electride 12CaO x 7Al2O3:e-,” J. Am. Chem. Soc. 129(23), 7270–7271 (2007).
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J. A. Imlach, L. S. D. Glasser, and F. P. Glasser, “Excess oxygen and the stability of 12CaO.7A12O3,” Cement Concr. Res. 1(1), 57–61 (1971).
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Jin, F.

X. H. Pan, J. D. Yu, Y. Liu, S. Yoda, H. M. Yu, M. H. Zhang, F. Ai, F. Jin, and W. Q. Jin, “Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method,” J. Alloys Compd. 509(27), 7504–7507 (2011).
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Jin, W. Q.

X. H. Pan, J. D. Yu, Y. Liu, S. Yoda, H. M. Yu, M. H. Zhang, F. Ai, F. Jin, and W. Q. Jin, “Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method,” J. Alloys Compd. 509(27), 7504–7507 (2011).
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Kam, C. H.

H. X. Zhang, C. H. Kam, Y. Zhou, X. Q. Han, S. Buddhudu, Q. Xiang, Y. L. Lan, and Y. C. Chan, “Green upconversion luminescence in Er3+:BaTiO3 films,” Appl. Phys. Lett. 77(5), 609–611 (2000).
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Kamiva, T.

M. Miyakawa, H. Hiramatsu, T. Kamiva, M. Hirano, and H. Hosono, “Fabrication and electron transport properties of epitaxial films of electron-doped 12CaO⚫7Al2O3 and 12SrO⚫7Al2O3,” J. Solid State Chem. 183(2), 385–391 (2010).
[Crossref]

Kamiya, T.

H. Hosono, S. W. Kim, M. Miyakawa, S. Matsuishi, and T. Kamiya, “Thin film and bulk fabrication of room-temperature-stable electride C12A7:e- utilizing reduced amorphous 12CaO⚫7Al2O3 (C12A7),” J. Non-Cryst. Solids 354(19-25), 2772–2776 (2008).
[Crossref]

M. Miyakawa, M. Hirano, T. Kamiya, and H. Hosono, “High electron doping to a wide band gap semiconductor 12CaO∙7Al2O3 thin film,” Appl. Phys. Lett. 90(18), 182105 (2007).
[Crossref]

Kawaji, H.

M. Miyakawa, S. W. Kim, M. Hirano, Y. Kohama, H. Kawaji, T. Atake, H. Ikegami, K. Kono, and H. Hosono, “Superconductivity in an inorganic electride 12CaO x 7Al2O3:e-,” J. Am. Chem. Soc. 129(23), 7270–7271 (2007).
[Crossref] [PubMed]

Kim, S.

K. Kurashige, S. Ueda, M. Miyakawa, Y. Toda, S. Matsuishi, S. Kim, M. Hirano, and H. Hosono, “Growth of 12CaO⚫7Al2O3 single crystal with tetragonal symmetry by Czochralski method,” Thin Solid Films 516(17), 5772–5776 (2008).
[Crossref]

Kim, S. W.

H. Hosono, S. W. Kim, M. Miyakawa, S. Matsuishi, and T. Kamiya, “Thin film and bulk fabrication of room-temperature-stable electride C12A7:e- utilizing reduced amorphous 12CaO⚫7Al2O3 (C12A7),” J. Non-Cryst. Solids 354(19-25), 2772–2776 (2008).
[Crossref]

M. Miyakawa, S. W. Kim, M. Hirano, Y. Kohama, H. Kawaji, T. Atake, H. Ikegami, K. Kono, and H. Hosono, “Superconductivity in an inorganic electride 12CaO x 7Al2O3:e-,” J. Am. Chem. Soc. 129(23), 7270–7271 (2007).
[Crossref] [PubMed]

Kirm, M.

E. Toldsepp, T. Avarmaa, V. Denks, E. Feldbach, M. Kirm, A. Maaroos, H. Mandar, and S. Vielhauer, “Synthesis and luminescence properties of Ce3+ doped nanoporous 12CaO⚫7Al2O3 powders and ceramics,” Opt. Mater. 32(8), 784–788 (2010).
[Crossref]

Kohama, Y.

M. Miyakawa, S. W. Kim, M. Hirano, Y. Kohama, H. Kawaji, T. Atake, H. Ikegami, K. Kono, and H. Hosono, “Superconductivity in an inorganic electride 12CaO x 7Al2O3:e-,” J. Am. Chem. Soc. 129(23), 7270–7271 (2007).
[Crossref] [PubMed]

Kono, K.

M. Miyakawa, S. W. Kim, M. Hirano, Y. Kohama, H. Kawaji, T. Atake, H. Ikegami, K. Kono, and H. Hosono, “Superconductivity in an inorganic electride 12CaO x 7Al2O3:e-,” J. Am. Chem. Soc. 129(23), 7270–7271 (2007).
[Crossref] [PubMed]

Kretschmann, H.

Kurashige, K.

K. Kurashige, S. Ueda, M. Miyakawa, Y. Toda, S. Matsuishi, S. Kim, M. Hirano, and H. Hosono, “Growth of 12CaO⚫7Al2O3 single crystal with tetragonal symmetry by Czochralski method,” Thin Solid Films 516(17), 5772–5776 (2008).
[Crossref]

Lakshminarayana, G.

Lan, Y. L.

H. X. Zhang, C. H. Kam, Y. Zhou, X. Q. Han, S. Buddhudu, Q. Xiang, Y. L. Lan, and Y. C. Chan, “Green upconversion luminescence in Er3+:BaTiO3 films,” Appl. Phys. Lett. 77(5), 609–611 (2000).
[Crossref]

Lee, S. H.

K. Teshima, S. H. Lee, N. Shikine, T. Wakabayashi, K. Yubuta, T. Shishido, and S. Oishi, “Flux Growth of Highly Crystalline NaYF4:Ln (Ln = Yb, Er, Tm) Crystals with Upconversion Fluorescence,” Cryst. Growth Des. 11(4), 995–999 (2011).
[Crossref]

Li, C. M.

N. Q. Wang, X. Zhao, C. M. Li, E. Y. B. Pun, and H. Lin, “Upconversion and color tunability in Tm3+/Ho3+/Yb3+ doped low phonon energy bismuth tellurite glasses,” J. Lumin. 130(6), 1044–1047 (2010).
[Crossref]

Li, X.

D. Wang, Y. Liu, C. Xu, Y. Liu, G. Wang, and X. Li, “Local microstructure and photoluminescence of Er-doped 12CaO⚫7Al2O3 powder,” J. Rare Earths 26(3), 433–438 (2008).
[Crossref]

Li, X. M.

Li, Y. P.

Y. P. Li, J. H. Zhang, Y. S. Luo, X. Zhang, Z. D. Hao, and X. J. Wang, “Color control and white light generation of upconversion luminescence by operating dopant concentrations and pump densities in Yb3+, Er3+ and Tm3+ tri-doped Lu2O3 nanocrystals,” J. Mater. Chem. 21(9), 2895–2900 (2011).
[Crossref]

Liao, S.

S. Liao, R. Yao, Y. Liu, X. Chen, X. Hu, and F. Zheng, “Green up-conversion of C12A7-Ho3+ prepared by co-precipitation method,” J. Alloys Compd. 642(5), 7–14 (2015).
[Crossref]

Lin, H.

N. Q. Wang, X. Zhao, C. M. Li, E. Y. B. Pun, and H. Lin, “Upconversion and color tunability in Tm3+/Ho3+/Yb3+ doped low phonon energy bismuth tellurite glasses,” J. Lumin. 130(6), 1044–1047 (2010).
[Crossref]

Liu, X.

F. Wang, R. Deng, J. Wang, Q. Wang, Y. Han, H. Zhu, X. Chen, and X. Liu, “Tuning upconversion through energy migration in core-shell nanoparticles,” Nat. Mater. 10(12), 968–973 (2011).
[Crossref] [PubMed]

Liu, Y.

S. Liao, R. Yao, Y. Liu, X. Chen, X. Hu, and F. Zheng, “Green up-conversion of C12A7-Ho3+ prepared by co-precipitation method,” J. Alloys Compd. 642(5), 7–14 (2015).
[Crossref]

X. H. Pan, J. D. Yu, Y. Liu, S. Yoda, H. M. Yu, M. H. Zhang, F. Ai, F. Jin, and W. Q. Jin, “Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method,” J. Alloys Compd. 509(27), 7504–7507 (2011).
[Crossref]

D. Wang, Y. Liu, C. Xu, Y. Liu, G. Wang, and X. Li, “Local microstructure and photoluminescence of Er-doped 12CaO⚫7Al2O3 powder,” J. Rare Earths 26(3), 433–438 (2008).
[Crossref]

D. Wang, Y. Liu, C. Xu, Y. Liu, G. Wang, and X. Li, “Local microstructure and photoluminescence of Er-doped 12CaO⚫7Al2O3 powder,” J. Rare Earths 26(3), 433–438 (2008).
[Crossref]

G. Y. Chen, Y. Liu, Y. G. Zhang, G. Somesfalean, Z. G. Zhang, Q. Sun, and F. P. Wang, “Conductive atomic force microscopy investigation of transverse current across metallic and semiconducting single-walled carbon nanotubes,” Appl. Phys. Lett. 91(12), 122103 (2007).
[Crossref]

Lou, L.

H. Guo, N. Dong, M. Yin, W. Zhang, L. Lou, and S. Xia, “Visible upconversion in rare earth ion-doped Gd2O3 nanocrystals,” J. Phys. Chem. B 108(50), 19205–19209 (2004).
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Luo, Y. S.

Y. P. Li, J. H. Zhang, Y. S. Luo, X. Zhang, Z. D. Hao, and X. J. Wang, “Color control and white light generation of upconversion luminescence by operating dopant concentrations and pump densities in Yb3+, Er3+ and Tm3+ tri-doped Lu2O3 nanocrystals,” J. Mater. Chem. 21(9), 2895–2900 (2011).
[Crossref]

Maaroos, A.

E. Toldsepp, T. Avarmaa, V. Denks, E. Feldbach, M. Kirm, A. Maaroos, H. Mandar, and S. Vielhauer, “Synthesis and luminescence properties of Ce3+ doped nanoporous 12CaO⚫7Al2O3 powders and ceramics,” Opt. Mater. 32(8), 784–788 (2010).
[Crossref]

Maduro, J. A.

W. Q. Zou, C. Visser, J. A. Maduro, M. S. Pshenichnikov, and J. C. Hummelen, “Broadband dye-sensitized upconversion of near-infrared light,” Nat. Photonics 6(8), 560–564 (2012).
[Crossref]

Mandar, H.

E. Toldsepp, T. Avarmaa, V. Denks, E. Feldbach, M. Kirm, A. Maaroos, H. Mandar, and S. Vielhauer, “Synthesis and luminescence properties of Ce3+ doped nanoporous 12CaO⚫7Al2O3 powders and ceramics,” Opt. Mater. 32(8), 784–788 (2010).
[Crossref]

Matsuishi, S.

K. Kurashige, S. Ueda, M. Miyakawa, Y. Toda, S. Matsuishi, S. Kim, M. Hirano, and H. Hosono, “Growth of 12CaO⚫7Al2O3 single crystal with tetragonal symmetry by Czochralski method,” Thin Solid Films 516(17), 5772–5776 (2008).
[Crossref]

H. Hosono, S. W. Kim, M. Miyakawa, S. Matsuishi, and T. Kamiya, “Thin film and bulk fabrication of room-temperature-stable electride C12A7:e- utilizing reduced amorphous 12CaO⚫7Al2O3 (C12A7),” J. Non-Cryst. Solids 354(19-25), 2772–2776 (2008).
[Crossref]

Miyakawa, M.

M. Miyakawa, H. Hiramatsu, T. Kamiva, M. Hirano, and H. Hosono, “Fabrication and electron transport properties of epitaxial films of electron-doped 12CaO⚫7Al2O3 and 12SrO⚫7Al2O3,” J. Solid State Chem. 183(2), 385–391 (2010).
[Crossref]

M. Miyakawa and J. Ceram, “Fabrication of high-density electron-doped 12CaO·7Al2O3 thin films by physical and chemical processes,” Soc. Jpn. 117(1363), 395–401 (2009).

H. Hosono, S. W. Kim, M. Miyakawa, S. Matsuishi, and T. Kamiya, “Thin film and bulk fabrication of room-temperature-stable electride C12A7:e- utilizing reduced amorphous 12CaO⚫7Al2O3 (C12A7),” J. Non-Cryst. Solids 354(19-25), 2772–2776 (2008).
[Crossref]

K. Kurashige, S. Ueda, M. Miyakawa, Y. Toda, S. Matsuishi, S. Kim, M. Hirano, and H. Hosono, “Growth of 12CaO⚫7Al2O3 single crystal with tetragonal symmetry by Czochralski method,” Thin Solid Films 516(17), 5772–5776 (2008).
[Crossref]

M. Miyakawa, M. Hirano, T. Kamiya, and H. Hosono, “High electron doping to a wide band gap semiconductor 12CaO∙7Al2O3 thin film,” Appl. Phys. Lett. 90(18), 182105 (2007).
[Crossref]

M. Miyakawa, S. W. Kim, M. Hirano, Y. Kohama, H. Kawaji, T. Atake, H. Ikegami, K. Kono, and H. Hosono, “Superconductivity in an inorganic electride 12CaO x 7Al2O3:e-,” J. Am. Chem. Soc. 129(23), 7270–7271 (2007).
[Crossref] [PubMed]

Oishi, S.

K. Teshima, S. H. Lee, N. Shikine, T. Wakabayashi, K. Yubuta, T. Shishido, and S. Oishi, “Flux Growth of Highly Crystalline NaYF4:Ln (Ln = Yb, Er, Tm) Crystals with Upconversion Fluorescence,” Cryst. Growth Des. 11(4), 995–999 (2011).
[Crossref]

Pan, X. H.

X. H. Pan, J. D. Yu, Y. Liu, S. Yoda, H. M. Yu, M. H. Zhang, F. Ai, F. Jin, and W. Q. Jin, “Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method,” J. Alloys Compd. 509(27), 7504–7507 (2011).
[Crossref]

Pshenichnikov, M. S.

W. Q. Zou, C. Visser, J. A. Maduro, M. S. Pshenichnikov, and J. C. Hummelen, “Broadband dye-sensitized upconversion of near-infrared light,” Nat. Photonics 6(8), 560–564 (2012).
[Crossref]

Pun, E. Y. B.

N. Q. Wang, X. Zhao, C. M. Li, E. Y. B. Pun, and H. Lin, “Upconversion and color tunability in Tm3+/Ho3+/Yb3+ doped low phonon energy bismuth tellurite glasses,” J. Lumin. 130(6), 1044–1047 (2010).
[Crossref]

Qin, F.

Q. Q. Duan, F. Qin, D. Wang, W. Xu, J. M. Cheng, Z. G. Zhang, and W. W. Cao, “Quantum cutting mechanism in Tb3+-Yb3+ co-doped oxyfluoride glass,” J. Appl. Phys. 110(11), 113503 (2011).
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Qiu, J.

Rademaker, K.

E. Heumann, S. Bar, K. Rademaker, G. Huber, S. Butterworth, A. Diening, and W. Seelert, “Semiconductor-laser-pumped high-power upconversion laser,” Appl. Phys. Lett. 88(6), 061108 (2006).
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Ren, G. Z.

G. Z. Ren, S. J. Zeng, and J. H. Hao, “Tunable multicolor upconversion emissions and paramagnetic property of monodispersed bifunctional lanthanide-doped NaGdF4 nanorods,” J. Phys. Chem. C 115(41), 20141–20147 (2011).
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Seelert, W.

E. Heumann, S. Bar, K. Rademaker, G. Huber, S. Butterworth, A. Diening, and W. Seelert, “Semiconductor-laser-pumped high-power upconversion laser,” Appl. Phys. Lett. 88(6), 061108 (2006).
[Crossref]

Shikine, N.

K. Teshima, S. H. Lee, N. Shikine, T. Wakabayashi, K. Yubuta, T. Shishido, and S. Oishi, “Flux Growth of Highly Crystalline NaYF4:Ln (Ln = Yb, Er, Tm) Crystals with Upconversion Fluorescence,” Cryst. Growth Des. 11(4), 995–999 (2011).
[Crossref]

Shishido, T.

K. Teshima, S. H. Lee, N. Shikine, T. Wakabayashi, K. Yubuta, T. Shishido, and S. Oishi, “Flux Growth of Highly Crystalline NaYF4:Ln (Ln = Yb, Er, Tm) Crystals with Upconversion Fluorescence,” Cryst. Growth Des. 11(4), 995–999 (2011).
[Crossref]

Somesfalean, G.

G. Y. Chen, Y. Liu, Y. G. Zhang, G. Somesfalean, Z. G. Zhang, Q. Sun, and F. P. Wang, “Conductive atomic force microscopy investigation of transverse current across metallic and semiconducting single-walled carbon nanotubes,” Appl. Phys. Lett. 91(12), 122103 (2007).
[Crossref]

Sun, Q.

G. Y. Chen, Y. Liu, Y. G. Zhang, G. Somesfalean, Z. G. Zhang, Q. Sun, and F. P. Wang, “Conductive atomic force microscopy investigation of transverse current across metallic and semiconducting single-walled carbon nanotubes,” Appl. Phys. Lett. 91(12), 122103 (2007).
[Crossref]

Teodorescu, V.

Teshima, K.

K. Teshima, S. H. Lee, N. Shikine, T. Wakabayashi, K. Yubuta, T. Shishido, and S. Oishi, “Flux Growth of Highly Crystalline NaYF4:Ln (Ln = Yb, Er, Tm) Crystals with Upconversion Fluorescence,” Cryst. Growth Des. 11(4), 995–999 (2011).
[Crossref]

Tiseanu, C.

Tiseanu, I.

Toda, Y.

K. Kurashige, S. Ueda, M. Miyakawa, Y. Toda, S. Matsuishi, S. Kim, M. Hirano, and H. Hosono, “Growth of 12CaO⚫7Al2O3 single crystal with tetragonal symmetry by Czochralski method,” Thin Solid Films 516(17), 5772–5776 (2008).
[Crossref]

Toldsepp, E.

E. Toldsepp, T. Avarmaa, V. Denks, E. Feldbach, M. Kirm, A. Maaroos, H. Mandar, and S. Vielhauer, “Synthesis and luminescence properties of Ce3+ doped nanoporous 12CaO⚫7Al2O3 powders and ceramics,” Opt. Mater. 32(8), 784–788 (2010).
[Crossref]

Ueda, S.

K. Kurashige, S. Ueda, M. Miyakawa, Y. Toda, S. Matsuishi, S. Kim, M. Hirano, and H. Hosono, “Growth of 12CaO⚫7Al2O3 single crystal with tetragonal symmetry by Czochralski method,” Thin Solid Films 516(17), 5772–5776 (2008).
[Crossref]

Vielhauer, S.

E. Toldsepp, T. Avarmaa, V. Denks, E. Feldbach, M. Kirm, A. Maaroos, H. Mandar, and S. Vielhauer, “Synthesis and luminescence properties of Ce3+ doped nanoporous 12CaO⚫7Al2O3 powders and ceramics,” Opt. Mater. 32(8), 784–788 (2010).
[Crossref]

Visser, C.

W. Q. Zou, C. Visser, J. A. Maduro, M. S. Pshenichnikov, and J. C. Hummelen, “Broadband dye-sensitized upconversion of near-infrared light,” Nat. Photonics 6(8), 560–564 (2012).
[Crossref]

Wakabayashi, T.

K. Teshima, S. H. Lee, N. Shikine, T. Wakabayashi, K. Yubuta, T. Shishido, and S. Oishi, “Flux Growth of Highly Crystalline NaYF4:Ln (Ln = Yb, Er, Tm) Crystals with Upconversion Fluorescence,” Cryst. Growth Des. 11(4), 995–999 (2011).
[Crossref]

Wang, D.

Q. Q. Duan, F. Qin, D. Wang, W. Xu, J. M. Cheng, Z. G. Zhang, and W. W. Cao, “Quantum cutting mechanism in Tb3+-Yb3+ co-doped oxyfluoride glass,” J. Appl. Phys. 110(11), 113503 (2011).
[Crossref]

D. Wang, Y. Liu, C. Xu, Y. Liu, G. Wang, and X. Li, “Local microstructure and photoluminescence of Er-doped 12CaO⚫7Al2O3 powder,” J. Rare Earths 26(3), 433–438 (2008).
[Crossref]

Wang, F.

F. Wang, R. Deng, J. Wang, Q. Wang, Y. Han, H. Zhu, X. Chen, and X. Liu, “Tuning upconversion through energy migration in core-shell nanoparticles,” Nat. Mater. 10(12), 968–973 (2011).
[Crossref] [PubMed]

Wang, F. P.

G. Y. Chen, Y. Liu, Y. G. Zhang, G. Somesfalean, Z. G. Zhang, Q. Sun, and F. P. Wang, “Conductive atomic force microscopy investigation of transverse current across metallic and semiconducting single-walled carbon nanotubes,” Appl. Phys. Lett. 91(12), 122103 (2007).
[Crossref]

Wang, G.

D. Wang, Y. Liu, C. Xu, Y. Liu, G. Wang, and X. Li, “Local microstructure and photoluminescence of Er-doped 12CaO⚫7Al2O3 powder,” J. Rare Earths 26(3), 433–438 (2008).
[Crossref]

Wang, J.

F. Wang, R. Deng, J. Wang, Q. Wang, Y. Han, H. Zhu, X. Chen, and X. Liu, “Tuning upconversion through energy migration in core-shell nanoparticles,” Nat. Mater. 10(12), 968–973 (2011).
[Crossref] [PubMed]

Wang, N. Q.

N. Q. Wang, X. Zhao, C. M. Li, E. Y. B. Pun, and H. Lin, “Upconversion and color tunability in Tm3+/Ho3+/Yb3+ doped low phonon energy bismuth tellurite glasses,” J. Lumin. 130(6), 1044–1047 (2010).
[Crossref]

Wang, Q.

F. Wang, R. Deng, J. Wang, Q. Wang, Y. Han, H. Zhu, X. Chen, and X. Liu, “Tuning upconversion through energy migration in core-shell nanoparticles,” Nat. Mater. 10(12), 968–973 (2011).
[Crossref] [PubMed]

Wang, R.

Wang, X. J.

Y. P. Li, J. H. Zhang, Y. S. Luo, X. Zhang, Z. D. Hao, and X. J. Wang, “Color control and white light generation of upconversion luminescence by operating dopant concentrations and pump densities in Yb3+, Er3+ and Tm3+ tri-doped Lu2O3 nanocrystals,” J. Mater. Chem. 21(9), 2895–2900 (2011).
[Crossref]

Wei, Y. L.

Xia, S.

H. Guo, N. Dong, M. Yin, W. Zhang, L. Lou, and S. Xia, “Visible upconversion in rare earth ion-doped Gd2O3 nanocrystals,” J. Phys. Chem. B 108(50), 19205–19209 (2004).
[Crossref]

Xiang, Q.

H. X. Zhang, C. H. Kam, Y. Zhou, X. Q. Han, S. Buddhudu, Q. Xiang, Y. L. Lan, and Y. C. Chan, “Green upconversion luminescence in Er3+:BaTiO3 films,” Appl. Phys. Lett. 77(5), 609–611 (2000).
[Crossref]

Xing, L.

Xu, C.

D. Wang, Y. Liu, C. Xu, Y. Liu, G. Wang, and X. Li, “Local microstructure and photoluminescence of Er-doped 12CaO⚫7Al2O3 powder,” J. Rare Earths 26(3), 433–438 (2008).
[Crossref]

Xu, W.

L. Xing, Y. Xu, R. Wang, and W. Xu, “Influence of temperature on upconversion multicolor luminescence in Ho3+/Yb3+/Tm3+-doped LiNbO3 single crystal,” Opt. Lett. 38(14), 2535–2537 (2013).
[Crossref] [PubMed]

Q. Q. Duan, F. Qin, D. Wang, W. Xu, J. M. Cheng, Z. G. Zhang, and W. W. Cao, “Quantum cutting mechanism in Tb3+-Yb3+ co-doped oxyfluoride glass,” J. Appl. Phys. 110(11), 113503 (2011).
[Crossref]

Xu, Y.

Yao, R.

S. Liao, R. Yao, Y. Liu, X. Chen, X. Hu, and F. Zheng, “Green up-conversion of C12A7-Ho3+ prepared by co-precipitation method,” J. Alloys Compd. 642(5), 7–14 (2015).
[Crossref]

Ye, S.

Yin, M.

H. Guo, N. Dong, M. Yin, W. Zhang, L. Lou, and S. Xia, “Visible upconversion in rare earth ion-doped Gd2O3 nanocrystals,” J. Phys. Chem. B 108(50), 19205–19209 (2004).
[Crossref]

Yoda, S.

X. H. Pan, J. D. Yu, Y. Liu, S. Yoda, H. M. Yu, M. H. Zhang, F. Ai, F. Jin, and W. Q. Jin, “Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method,” J. Alloys Compd. 509(27), 7504–7507 (2011).
[Crossref]

Yu, H. M.

X. H. Pan, J. D. Yu, Y. Liu, S. Yoda, H. M. Yu, M. H. Zhang, F. Ai, F. Jin, and W. Q. Jin, “Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method,” J. Alloys Compd. 509(27), 7504–7507 (2011).
[Crossref]

Yu, J. D.

X. H. Pan, J. D. Yu, Y. Liu, S. Yoda, H. M. Yu, M. H. Zhang, F. Ai, F. Jin, and W. Q. Jin, “Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method,” J. Alloys Compd. 509(27), 7504–7507 (2011).
[Crossref]

Yubuta, K.

K. Teshima, S. H. Lee, N. Shikine, T. Wakabayashi, K. Yubuta, T. Shishido, and S. Oishi, “Flux Growth of Highly Crystalline NaYF4:Ln (Ln = Yb, Er, Tm) Crystals with Upconversion Fluorescence,” Cryst. Growth Des. 11(4), 995–999 (2011).
[Crossref]

Zeng, S. J.

G. Z. Ren, S. J. Zeng, and J. H. Hao, “Tunable multicolor upconversion emissions and paramagnetic property of monodispersed bifunctional lanthanide-doped NaGdF4 nanorods,” J. Phys. Chem. C 115(41), 20141–20147 (2011).
[Crossref]

Zhang, H. X.

H. X. Zhang, C. H. Kam, Y. Zhou, X. Q. Han, S. Buddhudu, Q. Xiang, Y. L. Lan, and Y. C. Chan, “Green upconversion luminescence in Er3+:BaTiO3 films,” Appl. Phys. Lett. 77(5), 609–611 (2000).
[Crossref]

Zhang, J. H.

Y. P. Li, J. H. Zhang, Y. S. Luo, X. Zhang, Z. D. Hao, and X. J. Wang, “Color control and white light generation of upconversion luminescence by operating dopant concentrations and pump densities in Yb3+, Er3+ and Tm3+ tri-doped Lu2O3 nanocrystals,” J. Mater. Chem. 21(9), 2895–2900 (2011).
[Crossref]

Zhang, M. H.

X. H. Pan, J. D. Yu, Y. Liu, S. Yoda, H. M. Yu, M. H. Zhang, F. Ai, F. Jin, and W. Q. Jin, “Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method,” J. Alloys Compd. 509(27), 7504–7507 (2011).
[Crossref]

Zhang, W.

H. Guo, N. Dong, M. Yin, W. Zhang, L. Lou, and S. Xia, “Visible upconversion in rare earth ion-doped Gd2O3 nanocrystals,” J. Phys. Chem. B 108(50), 19205–19209 (2004).
[Crossref]

Zhang, X.

Y. P. Li, J. H. Zhang, Y. S. Luo, X. Zhang, Z. D. Hao, and X. J. Wang, “Color control and white light generation of upconversion luminescence by operating dopant concentrations and pump densities in Yb3+, Er3+ and Tm3+ tri-doped Lu2O3 nanocrystals,” J. Mater. Chem. 21(9), 2895–2900 (2011).
[Crossref]

Zhang, Y. G.

G. Y. Chen, Y. Liu, Y. G. Zhang, G. Somesfalean, Z. G. Zhang, Q. Sun, and F. P. Wang, “Conductive atomic force microscopy investigation of transverse current across metallic and semiconducting single-walled carbon nanotubes,” Appl. Phys. Lett. 91(12), 122103 (2007).
[Crossref]

Zhang, Z. G.

Q. Q. Duan, F. Qin, D. Wang, W. Xu, J. M. Cheng, Z. G. Zhang, and W. W. Cao, “Quantum cutting mechanism in Tb3+-Yb3+ co-doped oxyfluoride glass,” J. Appl. Phys. 110(11), 113503 (2011).
[Crossref]

G. Y. Chen, Y. Liu, Y. G. Zhang, G. Somesfalean, Z. G. Zhang, Q. Sun, and F. P. Wang, “Conductive atomic force microscopy investigation of transverse current across metallic and semiconducting single-walled carbon nanotubes,” Appl. Phys. Lett. 91(12), 122103 (2007).
[Crossref]

Zhao, X.

N. Q. Wang, X. Zhao, C. M. Li, E. Y. B. Pun, and H. Lin, “Upconversion and color tunability in Tm3+/Ho3+/Yb3+ doped low phonon energy bismuth tellurite glasses,” J. Lumin. 130(6), 1044–1047 (2010).
[Crossref]

Zheng, F.

S. Liao, R. Yao, Y. Liu, X. Chen, X. Hu, and F. Zheng, “Green up-conversion of C12A7-Ho3+ prepared by co-precipitation method,” J. Alloys Compd. 642(5), 7–14 (2015).
[Crossref]

Zhou, Y.

H. X. Zhang, C. H. Kam, Y. Zhou, X. Q. Han, S. Buddhudu, Q. Xiang, Y. L. Lan, and Y. C. Chan, “Green upconversion luminescence in Er3+:BaTiO3 films,” Appl. Phys. Lett. 77(5), 609–611 (2000).
[Crossref]

Zhu, B.

Zhu, H.

F. Wang, R. Deng, J. Wang, Q. Wang, Y. Han, H. Zhu, X. Chen, and X. Liu, “Tuning upconversion through energy migration in core-shell nanoparticles,” Nat. Mater. 10(12), 968–973 (2011).
[Crossref] [PubMed]

Zou, W. Q.

W. Q. Zou, C. Visser, J. A. Maduro, M. S. Pshenichnikov, and J. C. Hummelen, “Broadband dye-sensitized upconversion of near-infrared light,” Nat. Photonics 6(8), 560–564 (2012).
[Crossref]

Appl. Phys. Lett. (4)

E. Heumann, S. Bar, K. Rademaker, G. Huber, S. Butterworth, A. Diening, and W. Seelert, “Semiconductor-laser-pumped high-power upconversion laser,” Appl. Phys. Lett. 88(6), 061108 (2006).
[Crossref]

G. Y. Chen, Y. Liu, Y. G. Zhang, G. Somesfalean, Z. G. Zhang, Q. Sun, and F. P. Wang, “Conductive atomic force microscopy investigation of transverse current across metallic and semiconducting single-walled carbon nanotubes,” Appl. Phys. Lett. 91(12), 122103 (2007).
[Crossref]

M. Miyakawa, M. Hirano, T. Kamiya, and H. Hosono, “High electron doping to a wide band gap semiconductor 12CaO∙7Al2O3 thin film,” Appl. Phys. Lett. 90(18), 182105 (2007).
[Crossref]

H. X. Zhang, C. H. Kam, Y. Zhou, X. Q. Han, S. Buddhudu, Q. Xiang, Y. L. Lan, and Y. C. Chan, “Green upconversion luminescence in Er3+:BaTiO3 films,” Appl. Phys. Lett. 77(5), 609–611 (2000).
[Crossref]

Cement Concr. Res. (1)

J. A. Imlach, L. S. D. Glasser, and F. P. Glasser, “Excess oxygen and the stability of 12CaO.7A12O3,” Cement Concr. Res. 1(1), 57–61 (1971).
[Crossref]

Chem. Rev. (1)

F. Auzel, “Upconversion and Anti-Stokes Processes with f and d Ions in Solids,” Chem. Rev. 104(1), 139–174 (2004).
[Crossref] [PubMed]

Cryst. Growth Des. (1)

K. Teshima, S. H. Lee, N. Shikine, T. Wakabayashi, K. Yubuta, T. Shishido, and S. Oishi, “Flux Growth of Highly Crystalline NaYF4:Ln (Ln = Yb, Er, Tm) Crystals with Upconversion Fluorescence,” Cryst. Growth Des. 11(4), 995–999 (2011).
[Crossref]

J. Alloys Compd. (2)

S. Liao, R. Yao, Y. Liu, X. Chen, X. Hu, and F. Zheng, “Green up-conversion of C12A7-Ho3+ prepared by co-precipitation method,” J. Alloys Compd. 642(5), 7–14 (2015).
[Crossref]

X. H. Pan, J. D. Yu, Y. Liu, S. Yoda, H. M. Yu, M. H. Zhang, F. Ai, F. Jin, and W. Q. Jin, “Thermal, mechanical, and upconversion properties of Er3+/Yb3+ co-doped titanate glass prepared by levitation method,” J. Alloys Compd. 509(27), 7504–7507 (2011).
[Crossref]

J. Am. Chem. Soc. (1)

M. Miyakawa, S. W. Kim, M. Hirano, Y. Kohama, H. Kawaji, T. Atake, H. Ikegami, K. Kono, and H. Hosono, “Superconductivity in an inorganic electride 12CaO x 7Al2O3:e-,” J. Am. Chem. Soc. 129(23), 7270–7271 (2007).
[Crossref] [PubMed]

J. Appl. Phys. (1)

Q. Q. Duan, F. Qin, D. Wang, W. Xu, J. M. Cheng, Z. G. Zhang, and W. W. Cao, “Quantum cutting mechanism in Tb3+-Yb3+ co-doped oxyfluoride glass,” J. Appl. Phys. 110(11), 113503 (2011).
[Crossref]

J. Lumin. (1)

N. Q. Wang, X. Zhao, C. M. Li, E. Y. B. Pun, and H. Lin, “Upconversion and color tunability in Tm3+/Ho3+/Yb3+ doped low phonon energy bismuth tellurite glasses,” J. Lumin. 130(6), 1044–1047 (2010).
[Crossref]

J. Mater. Chem. (1)

Y. P. Li, J. H. Zhang, Y. S. Luo, X. Zhang, Z. D. Hao, and X. J. Wang, “Color control and white light generation of upconversion luminescence by operating dopant concentrations and pump densities in Yb3+, Er3+ and Tm3+ tri-doped Lu2O3 nanocrystals,” J. Mater. Chem. 21(9), 2895–2900 (2011).
[Crossref]

J. Non-Cryst. Solids (1)

H. Hosono, S. W. Kim, M. Miyakawa, S. Matsuishi, and T. Kamiya, “Thin film and bulk fabrication of room-temperature-stable electride C12A7:e- utilizing reduced amorphous 12CaO⚫7Al2O3 (C12A7),” J. Non-Cryst. Solids 354(19-25), 2772–2776 (2008).
[Crossref]

J. Phys. Chem. B (1)

H. Guo, N. Dong, M. Yin, W. Zhang, L. Lou, and S. Xia, “Visible upconversion in rare earth ion-doped Gd2O3 nanocrystals,” J. Phys. Chem. B 108(50), 19205–19209 (2004).
[Crossref]

J. Phys. Chem. C (1)

G. Z. Ren, S. J. Zeng, and J. H. Hao, “Tunable multicolor upconversion emissions and paramagnetic property of monodispersed bifunctional lanthanide-doped NaGdF4 nanorods,” J. Phys. Chem. C 115(41), 20141–20147 (2011).
[Crossref]

J. Rare Earths (1)

D. Wang, Y. Liu, C. Xu, Y. Liu, G. Wang, and X. Li, “Local microstructure and photoluminescence of Er-doped 12CaO⚫7Al2O3 powder,” J. Rare Earths 26(3), 433–438 (2008).
[Crossref]

J. Solid State Chem. (1)

M. Miyakawa, H. Hiramatsu, T. Kamiva, M. Hirano, and H. Hosono, “Fabrication and electron transport properties of epitaxial films of electron-doped 12CaO⚫7Al2O3 and 12SrO⚫7Al2O3,” J. Solid State Chem. 183(2), 385–391 (2010).
[Crossref]

Nat. Mater. (1)

F. Wang, R. Deng, J. Wang, Q. Wang, Y. Han, H. Zhu, X. Chen, and X. Liu, “Tuning upconversion through energy migration in core-shell nanoparticles,” Nat. Mater. 10(12), 968–973 (2011).
[Crossref] [PubMed]

Nat. Photonics (1)

W. Q. Zou, C. Visser, J. A. Maduro, M. S. Pshenichnikov, and J. C. Hummelen, “Broadband dye-sensitized upconversion of near-infrared light,” Nat. Photonics 6(8), 560–564 (2012).
[Crossref]

Opt. Express (1)

Opt. Lett. (2)

Opt. Mater. (1)

E. Toldsepp, T. Avarmaa, V. Denks, E. Feldbach, M. Kirm, A. Maaroos, H. Mandar, and S. Vielhauer, “Synthesis and luminescence properties of Ce3+ doped nanoporous 12CaO⚫7Al2O3 powders and ceramics,” Opt. Mater. 32(8), 784–788 (2010).
[Crossref]

Opt. Mater. Express (2)

Soc. Jpn. (1)

M. Miyakawa and J. Ceram, “Fabrication of high-density electron-doped 12CaO·7Al2O3 thin films by physical and chemical processes,” Soc. Jpn. 117(1363), 395–401 (2009).

Thin Solid Films (1)

K. Kurashige, S. Ueda, M. Miyakawa, Y. Toda, S. Matsuishi, S. Kim, M. Hirano, and H. Hosono, “Growth of 12CaO⚫7Al2O3 single crystal with tetragonal symmetry by Czochralski method,” Thin Solid Films 516(17), 5772–5776 (2008).
[Crossref]

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Figures (8)

Fig. 1
Fig. 1 Digital photo of 0.4%Ho3+/2.0%Yb3+/0.5%Tm3+/C12A7 crystal and the election diffraction patterns of the crystal along[113].
Fig. 2
Fig. 2 X-ray diffraction patterns of 0.4%Ho3+/2.0%Yb3+/0.5%Tm3+/C12A7 powder and the JCPDS Card of C12A7(09-0413).
Fig. 3
Fig. 3 Upconversion emission spectra of 0.4%Ho3+/2.0%Yb3+/0.5%Tm3+/C12A7 single crystal under 980nm excitation of 600mW, 700mW and 800mW at room temperature.
Fig. 4
Fig. 4 Calculated color coordinates for the uponversion emissions of 0.4%Ho3+/2.0%Yb3+/0.5%Tm3+/C12A7 single crystal under 980nm excitation at various pump power
Fig. 5
Fig. 5 Dependence of upconversion intensities on excitation powers for 0.4%Ho3+/2.0%Yb3+/0.5%Tm3+/C12A7 single crystal under 980nm excitation
Fig. 6
Fig. 6 Decay dynamics of the 3F4 level of Tm3+ ions in 0.4%Ho3+/2.0%Yb3+/0.5%Tm3+/C12A7 single crystal.
Fig. 7
Fig. 7 Decay dynamics of the 5I6 level of Ho3+ ions (a) and 5I7 level of Ho3+ ions (b) in 0.4%Ho3+/2.0%Yb3+/0.5%Tm3+/C12A7 single crystal.
Fig. 8
Fig. 8 The upconversion mechanisms of 0.4%Ho3+/2.0%Yb3+/0.5%Tm3+/C12A7 single crystal under 980nm excitation.

Equations (14)

Equations on this page are rendered with MathJax. Learn more.

x= X X+Y+Z y= Y X+Y+Z z= Z X+Y+Z
X= 400 720 P(λ) x (λ)dλ Y= 400 720 P(λ) y (λ) dλ Z= 400 720 P(λ) z (λ)dλ
I f P n
I(t)= I 0 + A s e t/ τ s + A f e t/ τ f
τ 0 = A s τ s 2 + A f τ f 2 A s τ s + A f τ f
N 0 =cons t
d N 1 dt =W N b N 0 W N b N 1 R 1 N 1 =0
d N 2 dt =W N b N 1 W N b N 2 R 2 N 2 =0
d N 3 dt =W N b N 2 R 3 N 3 =0
N 0 =const
d N 1 dt = β 21 N 2 W N b N 1 R 1 N 1 =0
d N 2 dt = W N b N 0 W N b N 2 R 2 N 2 =0
d N 3 dt = W N b N 1 + β 43 N 4 R 3 N 3 =0
d N 4 dt = W N b N 2 R 4 N 4 =0

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