Nanometals formation and color
Nanometals formation and color
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DOI：
10.1016/s1369-7021(04)00080-x
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发表时间：
2004-02-01
期刊：
影响因子：
24.2
通讯作者：
Liz-Marzan, Luis M.
中科院分区：
文献类型：
--
作者：
Liz-Marzan, Luis M.
金属纳米粒子因其尺寸和形状相关的特性而极具吸引力。在众多现有的金属纳米粒子合成方法中，简要讨论了最广泛使用的湿化学方法，这些方法适用于制备球形和非等轴（棒状或棱柱形）纳米粒子。这些纳米粒子的光学性质非常显著，因此在过去几十年中引起了极大的关注。描述了这种光学性质的起源基础，并简要介绍了一些解释它们的理论方法。展示了因纳米粒子的组成、尺寸和形状的变化以及与其他金属纳米粒子的接近而产生的颜色变化的实例。
Metal nanoparticles are very attractive because of their size-and shape-dependent properties. From the plethora of existing procedures for the synthesis of metal nanoparticles, the most widely used wet-chemical methods are briefly discussed, which are suitable for production of both spherical and anisometric (rod-like or prismatic) nanoparticles. The optical properties of these nanoparticles are spectacular and, therefore, have promoted a great deal of excitement during the last few decades. The basics of the origin of such optical properties are described and some of the theoretical methods accounting for them are briefly presented. Examples are shown of the color variations arising from changes in the composition, size, and shape of nanoparticles, as well as from the proximity of other metal nanoparticles.