Interband plasmons in supported graphene on metal substrates: Theory and experiments
Само за регистроване кориснике
2016
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
We present a theoretical modeling of the energy-loss spectroscopy data for monolayer graphene (MLG) supported by Pt(111), Ru(0001) and Ni(111) substrates. To reproduce the experimental loss function, we have used a two-dimensional, two-fluid hydrodynamic model for interband transitions of graphenes pi and sigma electrons and an empirical Drude-Lorentz model in the local approximation for metal substrates. The electronic response from the visible to the ultraviolet frequency range has been nicely reproduced for MLG/Pt(111) and MLG/Ru(0001). For graphene nanodomes on Ru(0001), the loss function of valleys shows an additional mode at 8-9 eV. By contrast, this models fails for the case of MLG/Ni(111), presumably due to the strong hybridization between the pi states of graphene and the d bands of Ni, which is not accounted for in the model. (C) 2015 Elsevier Ltd. All rights reserved.
Извор:
Carbon, 2016, 96, 91-97Финансирање / пројекти:
- Функционални, функционализовани и усавршени нано материјали (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45005)
- COST Action [MP1306], Natural Sciences and Engineering Research Council of Canada [249506-2011]
DOI: 10.1016/j.carbon.2015.09.053
ISSN: 0008-6223; 1873-3891
WoS: 000366078000012
Scopus: 2-s2.0-84947998484
Колекције
Институција/група
VinčaTY - JOUR AU - Politano, Antonio AU - Radović, Ivan AU - Borka, Duško AU - Mišković, Zoran L. AU - Chiarello, G. PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/842 AB - We present a theoretical modeling of the energy-loss spectroscopy data for monolayer graphene (MLG) supported by Pt(111), Ru(0001) and Ni(111) substrates. To reproduce the experimental loss function, we have used a two-dimensional, two-fluid hydrodynamic model for interband transitions of graphenes pi and sigma electrons and an empirical Drude-Lorentz model in the local approximation for metal substrates. The electronic response from the visible to the ultraviolet frequency range has been nicely reproduced for MLG/Pt(111) and MLG/Ru(0001). For graphene nanodomes on Ru(0001), the loss function of valleys shows an additional mode at 8-9 eV. By contrast, this models fails for the case of MLG/Ni(111), presumably due to the strong hybridization between the pi states of graphene and the d bands of Ni, which is not accounted for in the model. (C) 2015 Elsevier Ltd. All rights reserved. T2 - Carbon T1 - Interband plasmons in supported graphene on metal substrates: Theory and experiments VL - 96 SP - 91 EP - 97 DO - 10.1016/j.carbon.2015.09.053 ER -
@article{ author = "Politano, Antonio and Radović, Ivan and Borka, Duško and Mišković, Zoran L. and Chiarello, G.", year = "2016", abstract = "We present a theoretical modeling of the energy-loss spectroscopy data for monolayer graphene (MLG) supported by Pt(111), Ru(0001) and Ni(111) substrates. To reproduce the experimental loss function, we have used a two-dimensional, two-fluid hydrodynamic model for interband transitions of graphenes pi and sigma electrons and an empirical Drude-Lorentz model in the local approximation for metal substrates. The electronic response from the visible to the ultraviolet frequency range has been nicely reproduced for MLG/Pt(111) and MLG/Ru(0001). For graphene nanodomes on Ru(0001), the loss function of valleys shows an additional mode at 8-9 eV. By contrast, this models fails for the case of MLG/Ni(111), presumably due to the strong hybridization between the pi states of graphene and the d bands of Ni, which is not accounted for in the model. (C) 2015 Elsevier Ltd. All rights reserved.", journal = "Carbon", title = "Interband plasmons in supported graphene on metal substrates: Theory and experiments", volume = "96", pages = "91-97", doi = "10.1016/j.carbon.2015.09.053" }
Politano, A., Radović, I., Borka, D., Mišković, Z. L.,& Chiarello, G.. (2016). Interband plasmons in supported graphene on metal substrates: Theory and experiments. in Carbon, 96, 91-97. https://doi.org/10.1016/j.carbon.2015.09.053
Politano A, Radović I, Borka D, Mišković ZL, Chiarello G. Interband plasmons in supported graphene on metal substrates: Theory and experiments. in Carbon. 2016;96:91-97. doi:10.1016/j.carbon.2015.09.053 .
Politano, Antonio, Radović, Ivan, Borka, Duško, Mišković, Zoran L., Chiarello, G., "Interband plasmons in supported graphene on metal substrates: Theory and experiments" in Carbon, 96 (2016):91-97, https://doi.org/10.1016/j.carbon.2015.09.053 . .