Title of article
Luminescence centers and valence change of Eu2+ in KCaF3
Author/Authors
Liu، نويسنده , , Ying-Liang and Shi، نويسنده , , Chun-Shan، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2000
Pages
6
From page
689
To page
694
Abstract
The nature of the emission centers and the valence change of Eu2+ in KCaF3:Eu2+ depends strongly on preparation conditions. Experimental results show that there are two different d→f emission bands, located at 425 and 510 nm, respectively. Their origin, relationship, and the effect of doping concentration on them are discussed. A Eu2+–Eu3+ valence change process is proposed.
Keywords
A. Fluorides , D. Luminescence
Journal title
Materials Research Bulletin
Serial Year
2000
Journal title
Materials Research Bulletin
Record number
2094832
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