Divalent Europium in β‐Irradiated Aluminoborosilicate Glass | Zendy

Malchukova Eugenia | Zendy; Boizot Bruno | Zendy

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Divalent Europium in β‐Irradiated Aluminoborosilicate Glass

Author(s) -

Malchukova Eugenia,

Boizot Bruno

Publication year - 2010

Publication title -

journal of the american ceramic society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.9

H-Index - 196

eISSN - 1551-2916

pISSN - 0002-7820

DOI - 10.1111/j.1551-2916.2010.04209.x

Subject(s) - luminescence , europium , irradiation , electron paramagnetic resonance , ion , materials science , excited state , thermoluminescence , divalent , analytical chemistry (journal) , nuclear chemistry , chemistry , nuclear magnetic resonance , atomic physics , physics , optoelectronics , organic chemistry , chromatography , nuclear physics , metallurgy

The reduction processes of Eu 3+ ions in aluminoborosilicate glasses were studied using both high‐temperature melting in air and β‐irradiation by time‐resolved luminescence and electron paramagnetic resonance spectroscopies. The Eu 2+ ions produced during the synthesis are characterized by the UV excited broadband luminescence in the blue region due to the 4 f 6 5 d 1 –4 f 7 transition. This band revealed the presence more than one Eu 2+ site participating in the emission with different crystalline fields and with different covalency of surrounding ligands. In irradiated glasses, the observed redshift of the Eu 2+ emission band is related to the different relative proportion between Eu 2+ sites.

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