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Air tightness of hBN encapsulation and its impact on Raman spectroscopy of van der Waals materials

URN to cite this document:
urn:nbn:de:bvb:355-epub-452232
DOI to cite this document:
10.5283/epub.45223
Holler, Johannes ; Bauriedl, Lorenz ; Korn, Tobias ; Seitz, Andrea ; Özyigit, Furkan ; Eichinger, Michaela ; Schüller, Christian ; Watanabe, Kenji ; Taniguchi, Takashi ; Strunk, Christoph ; Paradiso, Nicola

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Date of publication of this fulltext: 16 Mar 2021 14:55


Abstract

Raman spectroscopy is a precious tool for the characterization of van der Waals materials, e.g. for the determination of the layer number in thin exfoliated flakes. For sensitive materials, however, this method can be dramatically invasive. In particular, the light intensity required to obtain a significant Raman signal is sufficient to immediately photo-oxidize few-layer thick metallic van der ...

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