Synthesis, characterization, and nonlinear optical properties of copper nanoparticles
Synthesis, characterization, and nonlinear optical properties of copper nanoparticles
复制标题
DOI：
10.1021/la9605495
复制
发表时间：
1997-01-22
期刊：
影响因子：
3.9
通讯作者：
Tang, SH
中科院分区：
文献类型：
--
作者：
Huang, HH;Yan, FQ;Tang, SH
本文采用肼还原醋酸铜的方法制备了纳米铜。合成的纳米颗粒在572-582 nm区域表现出明显的吸收峰。通过添加不同量的保护性聚合物（聚-（N-乙烯基吡咯烷酮）），实现了在乙氧基乙醇中从6.6至22.7 nm和在水中从15.5至30.2 nm的平均尺寸变化。首次采用Z扫描技术测量了铜胶体的非线性光学性质。发现所获得的chi（（3））/alpha（0）值的量级为10（-11）-10（-12）esu cm，这与所报道的嵌入玻璃中的铜纳米颗粒所获得的值非常一致。
Ln this paper, copper nanoparticles were prepared by the reduction of copper(II) acetate in water and 2-ethoxyethanol using hydrazine under reflux. The synthesized nanoparticles exhibit a distinct absorption peak in the region 572-582 nm. The average size variation from 6.6 to 22.7 nm in ethoxyethanol and from 15.5 to 30.2 nm in water was achieved by the addition of various amounts of a protective polymer (poly-(N-vinylpyrrolidone)). The nonlinear optical properties of the copper colloids were first measured using the Z-scan technique. The chi((3))/alpha(0) values obtained were found to be of the magnitude of 10(-11)-10(-12) esu cm, which are in good agreement with the reported Values obtained for copper nanoparticles embedded in glass.