Excitation polarization sensitivity of plasmon-mediated silver nanotriangle growth on a surface.
Excitation polarization sensitivity of plasmon-mediated silver nanotriangle growth on a surface.
复制标题
表面等离子体介导的银纳米三角形生长的激发偏振敏感性。
作者：
Aniruddha M. Paul;B. Kenens;J. Hofkens;H. Uji‐i
在这篇文章中，我们报告了一种有效且相对简单的方法，通过湿光化学合成方法，将较小的纳米银颗粒直接生长在固体衬底上。该方法包括将小的预制纳米三角形（nt）固定在衬底上，然后在银种子溶液中用光照射它们。此外，线偏振光的使用允许对衬底上银纳米三角形的生长方向施加控制。利用线偏振光获得了表面等离子体共振在纳米管生长中的作用的证据。因此，这项研究表明，在固体衬底上光诱导、定向合成纳米颗粒是可以实现的，这对等离子体应用至关重要。
In this contribution, we report an effective and relatively simple route to grow triangular flat-top silver nanoparticles (NPs) directly on a solid substrate from smaller NPs through a wet photochemical synthesis. The method consists of fixing small, preformed nanotriangles (NTs) on a substrate and subsequently irradiating them with light in a silver seed solution. Furthermore, the use of linearly polarized light allows for exerting control on the growth direction of the silver nanotriangles on the substrate. Evidence for the role of surface plasmon resonances in governing the growth of the NTs is obtained by employing linear polarized light. Thus, this study demonstrates that light-induced, directional synthesis of nanoparticles on solid substrates is in reach, which is of utmost importance for plasmonic applications.
影响因子：
15
作者：
Xue, Can;Metraux, Gabriella S.;Mirkin, Chad A.
通讯作者：
Mirkin, Chad A.