Preparation and Properties of Silver Colloids Produced by Laser-Induced Reduction of Silver Nitrate
LIANG Erjun, WANG Yuntao, WANG Yujin, HAO Qingxiu ZHANG Pengxiang*
Center of Analysis and Test, Zhengzhou University, Zhengzhou 450052
*Institute of Physics, Academia Sinica, Beijing 100080
Preparation and Properties of Silver Colloids Produced by Laser-Induced Reduction of Silver Nitrate
LIANG Erjun;WANG Yuntao;WANG Yujin;HAO Qingxiu ZHANG Pengxiang*
Center of Analysis and Test, Zhengzhou University, Zhengzhou 450052
*Institute of Physics, Academia Sinica, Beijing 100080
关键词 ：
33.20.Fb ,
78.30.-j ,
81.10.Dn
Abstract ： Silver colloids have been prapared by laser-induced reduction of silver nitrate. The properties of the colloids were studied with transmission electron microscopy, visible-ultraviolet absorption and Raman spectroscopy. We find that the growth of the silver grains is dependent on the laser illumination time. Two characteristic absorption bands of the colloids are located near 390 and 560nm, respectively. Not only are the silver colloids much cleaner than those prepared by chemical reduction methods, but also surface enhanced Raman scattering active. The method may be of interests for ultrafine particle studies as well.
Key words ：
33.20.Fb
78.30.-j
81.10.Dn
出版日期: 1992-02-01
:
33.20.Fb
(Raman and Rayleigh spectra (including optical scattering) ?)
78.30.-j
(Infrared and Raman spectra)
81.10.Dn
(Growth from solutions)
引用本文:
LIANG Erjun;WANG Yuntao;WANG Yujin;HAO Qingxiu ZHANG Pengxiang*. Preparation and Properties of Silver Colloids Produced by Laser-Induced Reduction of Silver Nitrate[J]. 中国物理快报, 1992, 9(2): 73-76.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1992/V9/I2/73
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