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Luminescence of High-Pressure Phases of Eu2+ Activated Alkaline Earth Borates and Silicates

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The Rare Earths in Modern Science and Technology

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Abstract

Luminescence properties of the high-pressure phases of Eu2+ activated alkaline earth borates (MB2O4:Eu2+) and silicates (MSiO3: Eu2+) were studied. Their quantum efficiencies increased strikingly with transformation from low pressure to high pressure phases. One of the high pressure forms of the metaborates, cubic Sr1−xEuxB2O4(x=0.01), was found to be an efficient photoluminescent material. The quenching effect owing to the interaction between the neighboring Eu2+ ions in the high-pressure phase is expected to be small compared with that in an atmospheric pressure phase. The same phase transformation effect was observed for Eu2+-activated silicates, Ca1−xEuxSiO3 and Sr1−xEUxSiO3.

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References

  1. M. Marezio, J.P. Remeika and P.D. Dernier, “The crystal structure of the high pressure phase, CaB2O4(IV), and polymorphism in CaB2O4”, Acta Cryst., 825: 965 (1969).

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  2. A.E. Ringwood and A. Major, “Some high-pressure transformations of geophysical significance”, Earth and Planetary Sci. Lett., 2:106 (1967).

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Authors and Affiliations

  1. Department of Applied Chemistry, Faculty of Engineering, Osaka University Yamadakami, Suita, Osaka, 565, Japan

    Gin-ya Adachi, Ken-ichi Machida & Jiro Shiokawa

Authors
  1. Gin-ya Adachi
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  2. Ken-ichi Machida
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  3. Jiro Shiokawa
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Editor information

Editors and Affiliations

  1. North Dakota State University, Fargo, North Dakota, USA

    Gregory J. McCarthy  & Faye M. Kalina  & 

  2. University of Texas at San Antonio, San Antonio, Texas, USA

    Herbert B. Silber

  3. National Bureau of Standards, Washington, D.C., USA

    James J. Rhyne

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© 1982 Plenum Press, New York

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Adachi, Gy., Machida, Ki., Shiokawa, J. (1982). Luminescence of High-Pressure Phases of Eu2+ Activated Alkaline Earth Borates and Silicates. In: McCarthy, G.J., Silber, H.B., Rhyne, J.J., Kalina, F.M. (eds) The Rare Earths in Modern Science and Technology. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-3406-4_38

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  • DOI: https://doi.org/10.1007/978-1-4613-3406-4_38

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4613-3408-8

  • Online ISBN: 978-1-4613-3406-4

  • eBook Packages: Springer Book Archive

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