The photosensitive effect of Ce on the precipitation of Ag nanoparticles induced by femtosecond laser in silicate glass  

作　　者：戴晔 邱建荣 

机构地区：[1]Department of Physics,Shanghai University [2]State Key Laboratory of Silicon Materials,Zhejiang University

出　　处：《Chinese Physics B》2009年第7期2858-2863,共6页中国物理B（英文版）

基　　金：Project supported by the National Basic Research Program of China (Grant No 2006CB806000b);the Shanghai Leading Academic Discipline Project (Grant No S30105)

摘　　要：This paper studies the photosensitive effect of cerium oxide on the precipitation of Ag nanoparticles after femtosecond laser irradiating into silicate glass and successive annealing.Spectroscopy analysis and diffraction efficiency measurements show that the introduction of cerium oxide may increase the concentration of Ag atoms in the femtosecond laser-irradiated regions resulting from the photoreduction reaction Ce^3＋ ＋ Ag^＋ → Ce^4＋ ＋ Ag^0 via multiphoton excitation.These results promote the aggregation of Ag nanopartieles during the annealing process. It is also found that different concentrations of cerium oxide may influence the Ag nanoparticle precipitation in the corresponding glass.This paper studies the photosensitive effect of cerium oxide on the precipitation of Ag nanoparticles after femtosecond laser irradiating into silicate glass and successive annealing.Spectroscopy analysis and diffraction efficiency measurements show that the introduction of cerium oxide may increase the concentration of Ag atoms in the femtosecond laser-irradiated regions resulting from the photoreduction reaction Ce^3＋ ＋ Ag^＋ → Ce^4＋ ＋ Ag^0 via multiphoton excitation.These results promote the aggregation of Ag nanopartieles during the annealing process. It is also found that different concentrations of cerium oxide may influence the Ag nanoparticle precipitation in the corresponding glass.

关 键 词：femtosecond laser glass photosensitive effect 

分 类 号：TB383.1[一般工业技术—材料科学与工程]