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Spontaneous reduction of europium ions below 250 °C in organic–inorganic hybrid low-melting phosphite glasses

Published online by Cambridge University Press:  31 January 2011

H. Niida ,
M. Takahashi ,
T. Uchino  and
T. Yoko
H. Niida
Affiliation:
Institute for Chemical Research, Kyoto University, Uji, Kyoto 611–0011, Japan
M. Takahashi*
Affiliation:
Institute for Chemical Research, Kyoto University, Uji, Kyoto 611–0011, Japan
T. Uchino
Affiliation:
Institute for Chemical Research, Kyoto University, Uji, Kyoto 611–0011, Japan
T. Yoko
Affiliation:
Institute for Chemical Research, Kyoto University, Uji, Kyoto 611–0011, Japan
*
a) Address all correspondence to this author. e-mail: masahide@noncry.kuicr.kyoto-u.ac.jp
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Abstract

Europium-doped organic–inorganic hybrid low-melting phosphite glass was prepared from SnCl2, Me2SiCl2, and H3PO3 (phosphonic acid) through the nonaqueous acid–base reaction process. The europium-doped glass melted at 250 °C showed fluorescence with a broad peak at 373 nm due to the 4f6 5d1 → 4f7 transition of Eu2+ ions, whereas no fluorescence from the Eu3+ ions was observed. Almost all of the Eu3+ ions incorporated into the glasses could be successfully reduced to Eu2+ ions at a temperature as low as 250 °C by the strong reducing power of H3PO3.

Type
Rapid Communications
Information
Journal of Materials Research , Volume 18 , Issue 1 , January 2003 , pp. 1 - 3
Copyright
Copyright © Materials Research Society 2003

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References

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