A study on the mechanism of the abnormal reduction of Eu3+ -> Eu2+ in Sr2B5O9Cl prepared in air at high temperature
Data(s) |
1999
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Resumo |
This paper reports a new observation of the abnormal reduction of Eu3+ --> Eu2+ in Sr2B5O9Cl when prepared in air at high temperature. A model based on the nature of substitution defects is proposed to explain this abnormal reduction. Electrons, which reduced the Eu3+ ions, are created by the substitution of cations first and then transferred to the target Eu3+ ions via tetrahedral berate anion groups. Codoping experiments are designed and performed. The results of these experiments support the model proposed. (C) 1999 Academic Press. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Pei Z;Zeng Q;Su Q.A study on the mechanism of the abnormal reduction of Eu3+ -> Eu2+ in Sr2B5O9Cl prepared in air at high temperature,JOURNAL OF SOLID STATE CHEMISTRY,1999,145(1):212-215 |
Palavras-Chave | #LUMINESCENCE #EUROPIUM |
Tipo |
期刊论文 |