Universal and simple MoO3 substrate for identification of SERS enhancement mechanism,Journal of Raman Spectroscopy

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Universal and simple MoO3 substrate for identification of SERS enhancement mechanism
Journal of Raman Spectroscopy ( IF 2.4 ) Pub Date : 2021-05-19 , DOI: 10.1002/jrs.6135
Yanqiu Yang ₁ , Jia Li ₁ , Meixia Zhang ₁ , Peng Song ₁ , Xuemei Lu ₁ , Yong Ding ₁

Affiliation

The electromagnetic mechanism (EM) induced by localised surface plasma resonance (LSPR) and the charge transfer mechanism (CT) between adsorbed molecules and the substrate is generally believed to explain the overall effect of surface-enhanced Raman spectroscopy (SERS). In some cases, the high complexity of the SERS system makes it difficult to identify the enhancement mechanism. In this paper, the synthesised MoO₃ with excellent stability, uniformity and versatility is used to study the SERS of several dye molecules and fully clarify the mechanism. The SERS enhancement mechanism is explained mainly by the SERS behaviour of molecules at different wavelengths. This discovery is very helpful for future SERS substrate and mechanism research.

中文翻译：

用于识别 SERS 增强机制的通用且简单的 MoO3 基底

由局域表面等离子体共振 (LSPR) 引起的电磁机制 (EM) 和吸附分子与基底之间的电荷转移机制 (CT) 通常被认为可以解释表面增强拉曼光谱 (SERS) 的整体效应。在某些情况下，SERS 系统的高复杂性使得难以识别增强机制。本文利用合成的具有优异稳定性、均匀性和通用性的MoO ₃来研究几种染料分子的SERS并充分阐明其机理。SERS 增强机制主要由分子在不同波长下的 SERS 行为来解释。这一发现对未来的SERS底物和机理研究非常有帮助。

更新日期：2021-07-07

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