Abstract

The main limitation of the use of tip-enhanced Raman scattering (TERS) is due to the lack of reliable scanning probes. We present a simple procedure to manufacture TERS probes with highly reproducible characteristics that are reliable and provide sufficient enhancement. The procedure is based on the modification of conventional cantilevers of scanning probe microscopes by plasma etching, followed by the formation of a TERS enhancing region at the apex by deposition of colloidal nanoparticles by dielectrophoresis.

中文翻译：

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高性能，可再现的尖端增强拉曼散射探针

摘要

使用尖端增强拉曼散射（TERS）的主要限制是由于缺乏可靠的扫描探针。我们提出了一个简单的步骤来制造具有高度可复制特征的TERS探针，这些特征可靠且可提供足够的增强。该过程基于通过等离子体蚀刻对扫描探针显微镜的常规悬臂进行的修改，然后通过介电电泳沉积胶体纳米颗粒，在顶点处形成TERS增强区。