TiO2-SiO2 hybrid materials containing Eu^3＋ ions were prepared via sol-gel method. Upon the introduction of TiO2, the emission intensity and the average decay time increase, revealing that the incorporation of TiO2 c...TiO2-SiO2 hybrid materials containing Eu^3＋ ions were prepared via sol-gel method. Upon the introduction of TiO2, the emission intensity and the average decay time increase, revealing that the incorporation of TiO2 can reduce the extent of the Eu^3＋ clusters. At the same time, the intensity ratio of ^5D0→^7F2 to ^5D0→^7F1 increases as the TiO2 concentration increases, indicating the formation of Eu^3＋ - O^2- - Ti^4＋ bonding. Moreover, the influence of the ion Eu^3 ＋ concentration on the luminescence properties and the R value were investigated.展开更多
文摘TiO2-SiO2 hybrid materials containing Eu^3＋ ions were prepared via sol-gel method. Upon the introduction of TiO2, the emission intensity and the average decay time increase, revealing that the incorporation of TiO2 can reduce the extent of the Eu^3＋ clusters. At the same time, the intensity ratio of ^5D0→^7F2 to ^5D0→^7F1 increases as the TiO2 concentration increases, indicating the formation of Eu^3＋ - O^2- - Ti^4＋ bonding. Moreover, the influence of the ion Eu^3 ＋ concentration on the luminescence properties and the R value were investigated.
