Article ID Journal Published Year Pages File Type
7900149 Journal of Non-Crystalline Solids 2018 6 Pages PDF
Abstract
A nanoporous silica glass is used as host for Eu3+-ions by immersion in Eu(NO3)3 solution. After sintering of the immersed glass, a very intense red emission is observed under UV excitation. The analysis of the luminescence shows that the native porous glass also presents an inherent luminescence in the blue range, originated from SiO2 centers and oxygen-deficiency-related defects. The microstructure and elemental distribution of the glass was investigated by (scanning) transmission electron microscopy ((S)TEM) and energy-dispersive X-ray spectroscopy (EDXS), respectively. Eu3+ ions are localized in round particles of hundreds of nanometers within the silica matrix.
Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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