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- Suh, Yung Doug
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Multilayered nano-prism vertex tips for tip-enhanced Raman spectroscopy and imaging
- Author(s)
- Kim, Taekyeong, Jeon, Ki-Seok, Heo, Kwang, Kim, Hyung Min, Park, Juhun, Suh, Yung Doug, Hong, Seunghun
- Issued Date
- 2013-10
- Citation
- ANALYST, v.138, no.19, pp.5588 - 5593
- Abstract
- We presented a scalable fabrication method for the preparation of multilayered nano-prism vertex (NV)-tips whose dimensions can be controlled for tip-enhanced Raman spectroscopy (TERS). The NV-tip had sharp vertices (diameter similar to 20 nm) originated from the chemical lift-off process after the angle-grinding process, enabling high resolution imaging. TERS measurements were performed on brilliant cresyl blue (BCB) molecules using a Ag/Au NV-tip, revealing the enhanced field localization at the vertices of the NV-tip. Furthermore, we could observe the polarization effect of the NV-tip. Our NV-tips should be a powerful tool for basic research on TERS experiments and SPM applications.
- Publisher
- ROYAL SOC CHEMISTRY
- ISSN
- 0003-2654
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