Plasmon Modes in Graphene-Based Materials
A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Carbon Materials".
Deadline for manuscript submissions: closed (10 September 2023) | Viewed by 1820
Special Issue Editors
Interests: surface; 2D systems; nanomaterials; graphene; plasmons; electronic excitations; spectroscopy
Special Issue Information
Dear Colleagues,
Being intrinsically two-dimensional (2D), graphene may be a suitable material for studying 2D plasmon modes. However, pristine graphene does not support rich plasmon spectra; the intraband plasmon modes do not exist, and the interband modes are relatively broad. To change this, graphene needs to be doped, electrostatically or chemically, e.g., by adding alkali or alkaline earth metals, which donate electrons to the graphene and metalize, i.e., form a 2D lattice. This leads to two-layer 2D metallic systems that support a variety of strong plasmon modes, both intraband and interband. A system such as this is usually deposited on a substrate, which can influence the plasmonic spectra, depending on the choice of the substrate and the position of the system relative to the substrate. Additionally, graphene, or a system consisting of graphene and a metallic layer, can be arranged into multiple layers and nanoribbons, or combined with other 2D materials, such as TMD or HbN, which influence the plasmons resonances, potentially leading to optically active modes, plasmon–phonon or plasmon–photon interactions, plasmon damping mechanisms, etc.
The possibility of modifying and controlling plasmon modes could open up new applications in plasmonics, photonics, optoelectronics in the THz and the infrared (IC) frequency region, light emitters, detectors and photovoltaic devices, biochemical sensing, etc.
This Special Issue is inviting contributions considering plasmon modes of various graphene-based systems that are designed to achieve unique plasmon spectra and enable a deeper understanding, as well as manipulation, of these modes, in order to make such systems applicable in the above-mentioned areas.
Dr. Leonardo Marušić
Dr. Vito Despoja
Guest Editors
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Keywords
- graphene
- plasmon
- 2D materials
- electronic excitations
- nanomaterials
- EELS
- plasmon polaritons
- nanoribbons
- TMD
- HbN
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