Front Cover: Highly Tunable Growth and Etching of Silica Shells on Surfactant‐Free Gold Nanostars (ChemNanoMat 1/2020),ChemNanoMat

当前位置： X-MOL 学术 › ChemNanoMat › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Front Cover: Highly Tunable Growth and Etching of Silica Shells on Surfactant‐Free Gold Nanostars (ChemNanoMat 1/2020)
ChemNanoMat ( IF 2.6 ) Pub Date : 2019-12-18 , DOI: 10.1002/cnma.201900565
Supriya Atta ₁ , Sylvie Rangan ₂ , Laura Fabris ₃

Affiliation

Both surfactant‐free and six‐branched gold nanostars can be fully coated by a silica shell by employing a slightly modified Stöber method. The shell can be then tunably etched by employing sodium borohydride as mild reducing agent, resulting in the partial exposure of the gold tips to the surrounding environment without alteration of their delicate tip morphology which, due to the high radius of curvature, is highly sensitive to atomic migration and reshaping, if appropriate reaction protocols are not followed. By manipulating the shell thickness, light‐particle interactions can be finely modulated, making these nanostructures ideal electric field enhancers. More information can be found in the Communication by Laura Fabris et al. on page 54 in Issue 1, 2020 (DOI: 10.1002/cnma.201900459).

中文翻译：

封面：不含表面活性剂的金纳米星上二氧化硅壳的高度可调节的生长和蚀刻（ChemNanoMat 1/2020）

不含表面活性剂的和六分支的金纳米星都可以通过使用经过稍微修改的Stöber方法的二氧化硅外壳完全覆盖。然后可以通过使用硼氢化钠作为温和的还原剂来可调谐地蚀刻外壳，从而使金针尖部分暴露在周围环境中，而不会改变其细腻的针尖形态，而由于高曲率半径，金针尖的形态对电极高度敏感如果没有遵循适当的反应方案，则进行原子迁移和重整。通过控制壳的厚度，可以很好地调节光与粒子之间的相互作用，从而使这些纳米结构成为理想的电场增强剂。可以在Laura Fabris等人的《通讯》中找到更多信息。关于在第1期第54页，2020（DOI：10.1002 / cnma.201900459）。

更新日期：2019-12-18

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11