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纳米银胶的光化学制备及其特性研究
引用本文:黄华,吴世法.纳米银胶的光化学制备及其特性研究[J].光子学报,2005,34(11):1643-1646.
作者姓名:黄华  吴世法
作者单位:大连理工大学物理系近场光学与纳米技术研究所,大连,116023
摘    要:采用紫外光化学法制备了黄色银胶,并研究了硝酸银和柠檬酸三钠的浓度对制备的银胶吸收光谱的影响,发现随着硝酸银浓度的增加银胶的吸收峰先兰移然后红移;当柠檬酸三钠的浓度增加时,硝酸银吸收峰的位置几乎不变,而吸收峰强度增大.最后通过透射电镜成像研究其尺寸,发现其尺寸分布在5~20 nm之间.

关 键 词:纳米  银胶  紫外光  吸收光谱
收稿时间:2004-09-02
修稿时间:2004年9月2日

The Preparation of Nanometer Silver Colloid by Photochemical Method and Its Character Study
Huang Hua,Wu Shifa.The Preparation of Nanometer Silver Colloid by Photochemical Method and Its Character Study[J].Acta Photonica Sinica,2005,34(11):1643-1646.
Authors:Huang Hua  Wu Shifa
Institution:Institute of Near-field Optical and Nanometer Technology, Department of Physics Dalian University of Technology, Dalian 116023
Abstract:The silver colloids were prepared by ultraviolet photochemical method. It was found that the position of the absorption maximum of the silver colloids gradually blue shift with the concentration of the silver nitrate increasing and then the position of the absorption maximum of the silver colloids gradually red shift with the concentration of the silver nitrate increasing. Also, it was found the position of the silver colloids absorption maximum does not change, but the value of absorption maximum increases with the concentration of trisodium citrate. The TEM image of the silver colloids shows that the scale of the silver particle change from 5 nm to 20 nm.
Keywords:Nano-meter  Silver colloid  Ultraviolet  Absorption spectroscopy
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