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Enhancement of electron phonon coupling by modulation of out-of-plane oxygen functional groups in thermally annealed few layer graphene
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SYSNO ASEP 0582300 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Enhancement of electron phonon coupling by modulation of out-of-plane oxygen functional groups in thermally annealed few layer graphene Author(s) Sarkar, S. (IN)
Roy, Rajarshi (UFCH-W)
Chattopadhyay, K. K. (IN)Article number 020209 Source Title AIP Conference Proceedings, 2995. - New York : AIP, 2024 - ISSN 0094-243X Number of pages 4 s. Publication form Print - P Action DAE Solid State Physics Symposium /66./ Event date 18.12.2022 - 22.12.2022 VEvent location Ranchi Country IN - India Event type WRD Language eng - English Country US - United States Keywords electrons ; graphene ; spectroscopy Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry Institutional support UFCH-W - RVO:61388955 EID SCOPUS 85183298835 DOI 10.1063/5.0178471 Annotation Understanding some collective phenomena in two dimensional van der Waal structure has been recently on-trend. Particularly, in doped graphene, physics related to highly correlated electronic structures is extensively studied to explain the quantum behaviors like superconductivity (SC), charge density wave (CDW), etc. In this work, we investigate a latent feature of functionalized graphene, i.e., electron-phonon coupling (EPC), which is essential to achieve these symmetry-breaking states. This study demonstrates the role of oxygen functional groups (OFGs), incorporated in graphene lattice along out-of-plane direction, in increasing electron-phonon interaction. Two significant spectroscopic tools, X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy, are employed to measure this interaction. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2025
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