纳米结构
拉曼光谱
纳米技术
化学
表面增强拉曼光谱
罗丹明6G
原子力显微镜
化学工程
材料科学
拉曼散射
光学
分子
有机化学
物理
工程类
作者
Lingling Zhang,Rui Hao,Dongjie Zhang,Hongjun You,Yanzhu Dai,Weihua Liu,Jixiang Fang
标识
DOI:10.1021/acs.analchem.0c01333
摘要
How to fabricate Au nanostructures conveniently on microstructured/nanostructured arrays surface with low cost has become a crucial and urgent challenge. In this study, we demonstrate hierarchical flowerlike Au nanostructures with rich nanothorns (HF-AuNTs) through one-step electrochemical deposition. The morphology of the HF-AuNTs is easily manipulated by controlling the applied potential or precursor solution concentration of electrodeposition. The as-prepared HF-AuNTs possessing unique local morphology of thin petals and dense thorns are further applied in the Si micropit arrays to acquire HF-AuNTs microarrays. As an initial detection, these HF-AuNTs microarrays exhibit a fascinating surface-enhanced Raman spectroscopy consistency (relative standard deviation is 7.17%) and sensitivity with the limitation of crystal violet reaching to 10–10 M, and Rhodamine 6G reaching to 10–11 M. The HF-AuNTs microarrays with well-defined shape and elaborate structure may be applicated in SERS substrates, superhydrophobic materials, and so on.
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