期刊
JOURNAL OF NON-CRYSTALLINE SOLIDS
卷 293, 期 -, 页码 649-656出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0022-3093(01)00843-2
关键词
-
Silver particles of several sizes can be dispersed in glasses of the 'Ag2O-ZnO-P2O5' system. By introducing a small proportion of SiO2 or Al2O3 micron-sized silver particles are obtained in low silver content glass compositions whereas nanometer-sized particles precipitate in silver rich glasses. The particle-glass composites exhibit the classical absorption plasmon band peaking about 430 nm. The thermal variation of the peak full-width at half-maximum (FWHM) as the annealing temperature of the glass increases is analyzed by the Mie theory and corresponds to an increase of the particle radii from 11 to 30 nm. In composite glasses containing micrometric silver particles, time resolved luminescence spectroscopy reveals the formation of a new emitting center (Ag-2)(+) located in the vicinity of the silver particles and which can be considered as an intermediate step between Ag+-Ag+ pairs and silver metal in the process of silver precipitation. (C) 2001 Elsevier Science B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据