Abstract
Graphene layers placed on SrTiO3 single-crystal substrates, i.e., templates for remote epitaxy of functional oxide membranes, were investigated using temperature-dependent confocal Raman spectroscopy. This approach successfully resolved distinct Raman modes of graphene that are often untraceable in conventional measurements with non-confocal optics due to the strong Raman scattering background of SrTiO3. Information on defects and strain states was obtained for a few graphene/SrTiO3 samples that were synthesized by different techniques. This confocal Raman spectroscopic approach can shed light on the investigation of not only this graphene/SrTiO3 system but also various two-dimensional layered materials whose Raman modes interfere with their substrates.
Original language | English |
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Article number | 105301 |
Journal | Journal of Applied Physics |
Volume | 133 |
Issue number | 10 |
DOIs | |
State | Published - Mar 14 2023 |
Bibliographical note
Publisher Copyright:© 2023 Author(s).
ASJC Scopus subject areas
- General Physics and Astronomy