Surface Enhanced Raman Scattering Revealed by Interfacial Charge-Transfer Transitions.
Surface Enhanced Raman Scattering Revealed by Interfacial Charge-Transfer Transitions.
复制标题
界面电荷转移跃迁揭示的表面增强拉曼散射。
DOI：
10.1016/j.xinn.2020.100051
复制
发表时间：
2020-11-25
期刊：
影响因子：
--
通讯作者：
Zhao Z
中科院分区：
文献类型：
--
作者：
Cong S;Liu X;Jiang Y;Zhang W;Zhao Z
表面增强拉曼散射（Sers）是一种指纹光谱技术，其性能高度依赖于基底材料的物理化学性质。除了以显著的电磁增强为特征的传统等离子体激元金属基底之外，最近已经报道了用于各种类型的非金属材料的增强的Sers活性，包括石墨烯、MXenes、过渡金属硫属元素/氧化物和共轭有机分子。尽管这些半导体衬底的结构组成不同，但由界面电荷转移引起的化学增强通常是整体Sers行为的主要贡献者，这不同于基于等离子体激元金属的传统Sers。本文简要介绍了电荷转移诱导的Sers增强的基本概念、最新的半导体基底及其在Sers增强中的应用。表面增强拉曼散射（Sers）是一种对基底材料依赖性很强的指纹光谱技术。电荷转移跃迁通常是非金属基底中增强Sers活性的主要贡献者。新型的操作策略和扩展的应用程序的多功能基板的界面电荷转移的基础上说明。
Surface enhanced Raman scattering (SERS) is a fingerprint spectral technique whose performance is highly dependent on the physicochemical properties of the substrate materials. In addition to the traditional plasmonic metal substrates that feature prominent electromagnetic enhancements, boosted SERS activities have been reported recently for various categories of non-metal materials, including graphene, MXenes, transition-metal chalcogens/oxides, and conjugated organic molecules. Although the structural compositions of these semiconducting substrates vary, chemical enhancements induced by interfacial charge transfer are often the major contributors to the overall SERS behavior, which is distinct from that of the traditional SERS based on plasmonic metals. Regarding charge-transfer-induced SERS enhancements, this short review introduces the basic concepts underlying the SERS enhancements, the most recent semiconducting substrates that use novel manipulation strategies, and the extended applications of these versatile substrates. Surface-enhanced Raman scattering (SERS) is a fingerprint spectral technique highly dependent on the substrate materials. Charge transfer transitions are commonly the major contributors to the boosted SERS activities in non-metal substrates. Novel manipulation strategies and extended applications of the versatile substrates are illustrated on the basis of interfacial charge transfer.