Preparation And Characterization Of Silver Nanoparticles On Soda-lime Glass Surface

Silicate glass containing mental nanoparticles is the very promising material for the applications in the optical communicating, information storage, sanitation field, etc., due to its unique characteristics in optics, electricity, magnatism. This study focused on the fabrication of the silver nanoparticles in glass by the ion-exchange method combied the annealing. This article briefly introduced the manufacture techniques, research status and the potential applications of the mental nanoparticle contained glass.The silver was introduced into the glass by the silver-sodium ion exchange. After ion-exchage process, the samples were annealed in different atmosphere for the silver ions reduce to atoms and grew into nanoparticles eventualy. The samples were analyzed by prism coupler, UV-VIS spectrophotometer, scanning electron microscope (SEM) and X-ray diffractometer. The influence of the different annealing conditions had been studied. The silver ion effective diffusion depth was 1.09μm. After annealing, the waveguide mode number increased. The optical absorption spectra displayed no absorption peaks for ion exchanged samples, however after annealing, the significant absorption peaks around 410 nm, corresponding to the silver nanoparticle's surface plasmon resonance absorption peak, had been detected. This indicates that the silver nanoparticles did not form in the ion exchange stage but the annealing process. The atmosphere, temperature and time of the annealing process will strongly affect the nanoparticles'size, shape and distribution. Annealed in N2 atmosphere at temperatures in the range 350～550℃for 1 h, the nanoparticles had a roughly spherical shape, distributing close and homogeneously. As the annealing time lasted longer, the nanoparticles agglomerated with a irregular shape and enlarged clearance. The nanopaticles formed in annealing in air atmosphere had a nearly rectangle shape with a large clearance. Increasing the annealing temperature and time, will promte the formation of nanoparticles...