A plasma-based gas-phase method for synthesis of gold nanoparticles
A plasma-based gas-phase method for synthesis of gold nanoparticles
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DOI：
10.1002/ppap.201800212
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发表时间：
2019-07-01
影响因子：
3.5
通讯作者：
Anthony, Rebecca J.
中科院分区：
文献类型：
--
作者：
Izadi, Alborz;Anthony, Rebecca J.
金纳米粒子具有可调谐的光吸收和等离子体共振等独特的光电特性，在许多领域有着广泛的应用。虽然胶体金纳米颗粒的合成和稳定化已经很好地建立，但新的合成路线可以提高金纳米颗粒应用的通用性，特别是如果该方法允许避免溶液过程或表面活性剂的话。在这里，我们介绍了一种基于等离子体的合成金纳米粒子，使用自耗金丝和射频电源。AuNP是单分散的，平均直径为4nm。虽然生产产率低，但AuNPs的窄尺寸分布和在该方法中避免溶液处理对于未来基于等离子体的金属NPs的合成是有希望的。
There are many applications for gold nanoparticles (AuNPs) due to their interesting optoelectronic properties such as tunable optical absorption and plasmonic resonance behavior. Although synthesis and stabilization of colloidal AuNPs are well established, new synthesis routes can lead to enhanced versatility of applications for AuNPs, particularly if the methods allow avoidance of solution processes or surfactants. Here, we introduce a plasma-based synthesis of AuNPs, using a consumable gold wire and a radiofrequency power source. The AuNPs are monodisperse, with an average diameter of 4 nm. Although production yield is low, the narrow size distribution of the AuNPs and the avoidance of solution processing in this method are promising for future syntheses of metal NPs based on plasmas.