The reduction of Eu to Eu in air and luminescence properties of Eu activated ZnO–B2O3–P2O5 glasses期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

The reduction of Eu to Eu in air and luminescence properties of Eu activated ZnO–B₂O₃–P₂O₅ glasses

Authors:	Zhihong Lian Jing Wang Yuhua Lv Shubin Wang Qiang Su

Affiliation:	^aKey Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China ^bCollege of Material Science and Engineering, Hebei Polytechnic University, Tangshan 063009, China ^cState Key Laboratory of Optoelectronic Materials and Technology, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China ^dGraduate School of the Chinese Academy of Sciences, Beijing 100049, China

Abstract:	A valence change from Eu³⁺ to Eu²⁺ was observed in the europium ion-doped ZnO–B₂O₃–P₂O₅ glasses prepared at high temperature in air. The fluorescence emission spectrum of the sample consists of a broad emission band ascribed to the 5d–4f transition of Eu²⁺ ion and sharp emission peaks assigned to the transitions of ⁵D_o–⁷F_J (J = 0, 1, 2, 3, and 4) of Eu³⁺ ion, indicating that part of Eu³⁺ can be reduced into Eu²⁺ in the glass. A charge compensation model is proposed. The rigid tetrahedral network structure of glasses plays an important role in stability of Eu²⁺. The fabrication conditions are also studied.

Keywords:	Europium ion Luminescence ZnO–B₂O₃–P₂O₅ glasses
本文献已被 ScienceDirect 等数据库收录！