期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 32, 页码 18038-18045出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b04946
关键词
graphene oxide; Ag nanoplates; localized surface plasmon resonance; surface-enhanced Raman spectroscopy; reproducibility; sensitivity
资金
- National Science Foundation of China [21475125, 21175125]
- Chinese Academy of Sciences
- State Key Laboratory of Electroanalytical Chemistry [110000R387]
Nanopartides and nanohybrids with well-defined structures, along with tunable localized surface plasmon resonance (LSPR) properties and optimized sensitivity, are crucial and highly desired for surface-enhanced Raman spectroscopy (SERS) applications. In this article, we report on a very promising and flexible SERS platforms with a tunable LSPR response and sensitivity based on Ag nanoplates and graphene oxide (GO). The SERS detection sensitivity can be easily optimized and significantly improved by fine-tuning the LSPR band of the Ag nanoplate/GO substrates (to enhance the SERS response) during sample preparation. We applied the as-prepared SERS platform for sensitive SERS detection of 4-mercaptobenzoic acid and 4-aminothiophenol and found that the SERS signal varied markedly (by similar to 10-15-fold) with the fine-tuning of the LSPR band. The SERS enhancement factor of the Ag nanoplate/GO complexes was more than 104 times larger than that obtained using spherical Ag nanopartides. The as-prepared Ag nanoplate/GO platforms, because of their excellent stability and tunable LSPR properties, will find promising practical SERS applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据