Spontaneous reduction of Eu3+ ion in Al co-doped sol-gel silica matrix during densification

A. Biswas; C. S. Friend; P. N. Prasad

doi:10.1016/S0167-577X(99)00011-7

Spontaneous reduction of Eu³⁺ ion in Al co-doped sol-gel silica matrix during densification

A. Biswas
, C. S. Friend
, P. N. Prasad

Chemistry

SUNY Buffalo

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

Eu and Eu-Al co-doped silica glasses have been prepared by impregnating the pores of a base catalyzed tetraethylorthosilicate (TEOS) gel with the nitrate salt of Eu and Al and subsequent densification around 1125 to 1150 °C. Absorption, emission and excitation spectra of these glasses indicate that Eu³⁺ ions are spontaneously reduced to Eu²⁺ in the presence of Al³⁺ during sintering of the glasses above 1000 °C.

Original language	English
Pages (from-to)	227-231
Number of pages	5
Journal	Materials Letters
Volume	39
Issue number	4
DOIs	https://doi.org/10.1016/S0167-577X(99)00011-7
State	Published - May 1999

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10.1016/S0167-577X(99)00011-7

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title = "Spontaneous reduction of Eu3+ ion in Al co-doped sol-gel silica matrix during densification",

abstract = "Eu and Eu-Al co-doped silica glasses have been prepared by impregnating the pores of a base catalyzed tetraethylorthosilicate (TEOS) gel with the nitrate salt of Eu and Al and subsequent densification around 1125 to 1150 °C. Absorption, emission and excitation spectra of these glasses indicate that Eu3+ ions are spontaneously reduced to Eu2+ in the presence of Al3+ during sintering of the glasses above 1000 °C.",

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T1 - Spontaneous reduction of Eu3+ ion in Al co-doped sol-gel silica matrix during densification

AU - Biswas, A.

AU - Friend, C. S.

AU - Prasad, P. N.

PY - 1999/5

Y1 - 1999/5

N2 - Eu and Eu-Al co-doped silica glasses have been prepared by impregnating the pores of a base catalyzed tetraethylorthosilicate (TEOS) gel with the nitrate salt of Eu and Al and subsequent densification around 1125 to 1150 °C. Absorption, emission and excitation spectra of these glasses indicate that Eu3+ ions are spontaneously reduced to Eu2+ in the presence of Al3+ during sintering of the glasses above 1000 °C.

AB - Eu and Eu-Al co-doped silica glasses have been prepared by impregnating the pores of a base catalyzed tetraethylorthosilicate (TEOS) gel with the nitrate salt of Eu and Al and subsequent densification around 1125 to 1150 °C. Absorption, emission and excitation spectra of these glasses indicate that Eu3+ ions are spontaneously reduced to Eu2+ in the presence of Al3+ during sintering of the glasses above 1000 °C.

UR - https://www.scopus.com/pages/publications/0032623832

U2 - 10.1016/S0167-577X(99)00011-7

DO - 10.1016/S0167-577X(99)00011-7

M3 - Article

AN - SCOPUS:0032623832

SN - 0167-577X

VL - 39

SP - 227

EP - 231

JO - Materials Letters

JF - Materials Letters

IS - 4

ER -

Spontaneous reduction of Eu³⁺ ion in Al co-doped sol-gel silica matrix during densification

Abstract

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