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首页> 外文期刊>RSC Advances >Development of a candidate reference sample for the characterization of tip-enhanced Raman spectroscopy spatial resolution
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Development of a candidate reference sample for the characterization of tip-enhanced Raman spectroscopy spatial resolution

机译：开发候选参考样本，用于表征尖端增强拉曼光谱空间分辨率

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摘要

Tip-Enhanced Raman Spectroscopy (TERS) is a topographic and chemical analysis technique with nanoscale resolution, consisting of the combination of Scanning Probe Microscopy (SPM) and Localized Surface Plasmon Resonance (LSPR) for the enhancement of Raman scattering in the vicinity of the probe. The quantification of spatial resolution represents an important issue, and, as of now, standards for calibration are not available. In the present work a candidate reference sample for TERS measurements was fabricated. It consists of a flat, conductive gold surface with a nanometric grating of a self-assembled monolayer of Raman-active organic molecules fabricated by an optimized Electron Beam Lithography (EBL) method to replicate established SPM calibration standards. Its feasibility as a TERS standard was tested by STM-TERS imaging.
机译：尖端增强的拉曼光谱（TERS）是具有纳米级分辨率的地形和化学分析技术，包括扫描探针显微镜（SPM）和局部表面等离子体共振（LSPR）的组合，用于增强探头附近的拉曼散射 。 空间分辨率的量化代表一个重要问题，截至目前，校准标准不可用。 在本作工作中，制造了候选参考样品进行测量。 它由一个平坦的导电金表面组成，具有由优化的电子束光刻（EBL）方法制造的自组装单层的拉曼活性有机分子的纳米射精，以复制建立的SPM校准标准。 其作为TERS标准的可行性由STM-TERS成像测试。

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