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説明:

Tip-enhanced Raman spectroscopy (TERS) combined with principal component analysis (PCA) offers a robust approach for enhancing signal quality and uncovering spectroscopic features otherwise concealed by noise. This study demonstrates that integrating TERS with PCA in large-scale datasets effectively reduces noise and enhances the extraction of weak Raman signals that are often obscured by random spectral fluctuations. The methodology was applied to hyperspectral datasets acquired from MoSe2 monolayers exhibiting nanoscale surface features. Through this approach, previously hidden nano-Raman peaks were successfully isolated, enabling reliable chemical identification at the nanoscale. The combined use of TERS and PCA significantly improves sensitivity and resolution in the spectroscopic analysis of two-dimensional materials, advancing their characterization with respect to interfacial and environmental effects.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: tip-enhanced Raman spectroscopy, MoSe2

刊行年月日: 2025-07-29

出版者: Wiley

掲載誌:

• physica status solidi (b) (ISSN: 03701972) vol. 263 issue. 1 e202500291

研究助成金:

• Japan Science and Technology Agency JPMJFR213X, JPMJCR24A5
• JSPS JP21H05232, JP21H05233, JP21H05234, JP22H00283, JP22H04957, and JP23H02052

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1002/pssb.202500291

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更新時刻: 2026-06-09 13:19:29 +0900

MDRでの公開時刻: 2026-06-09 15:25:52 +0900