Comparative study of electronic and optical properties of graphene and germanene: DFT study
We have performed a first-principle study of the electronic and optical properties of optimized structure of germanene and graphene by means of density functional theory, using the full potential linearized augmented plane wave (FP-LAPW) method based to Gradient Generazed approximation (GGA). Moreov...
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Published in | Optik (Stuttgart) Vol. 158; pp. 693 - 698 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
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Elsevier GmbH
01.04.2018
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Abstract | We have performed a first-principle study of the electronic and optical properties of optimized structure of germanene and graphene by means of density functional theory, using the full potential linearized augmented plane wave (FP-LAPW) method based to Gradient Generazed approximation (GGA). Moreover, the enhanced absorption coefficient, reflectivity and refraction index are also study in both directions. In general, the calculated results indicate that the graphene and germanene are similar electronic structure with zero band gap at K point, further the absorption coefficient and reflectivity of germanene is higher in visible light than graphene; germanene holds great potential solar cell applications. |
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AbstractList | We have performed a first-principle study of the electronic and optical properties of optimized structure of germanene and graphene by means of density functional theory, using the full potential linearized augmented plane wave (FP-LAPW) method based to Gradient Generazed approximation (GGA). Moreover, the enhanced absorption coefficient, reflectivity and refraction index are also study in both directions. In general, the calculated results indicate that the graphene and germanene are similar electronic structure with zero band gap at K point, further the absorption coefficient and reflectivity of germanene is higher in visible light than graphene; germanene holds great potential solar cell applications. |
Author | Boujnah, M. El hachimi, A.G. Benyoussef, A. El Kenz, A. Ould NE, M.L. |
Author_xml | – sequence: 1 givenname: M.L. surname: Ould NE fullname: Ould NE, M.L. email: mohamedlemineouldne@gmail.com organization: Laboratory of Magnetism and Physics of High Energies, Department of Physics, URAC 12, B.P. 1014, Faculty of Science,University Mohammed V, Rabat, Morocco – sequence: 2 givenname: A.G. surname: El hachimi fullname: El hachimi, A.G. organization: Laboratory of Magnetism and Physics of High Energies, Department of Physics, URAC 12, B.P. 1014, Faculty of Science,University Mohammed V, Rabat, Morocco – sequence: 3 givenname: M. surname: Boujnah fullname: Boujnah, M. organization: Laboratory of Magnetism and Physics of High Energies, Department of Physics, URAC 12, B.P. 1014, Faculty of Science,University Mohammed V, Rabat, Morocco – sequence: 4 givenname: A. surname: Benyoussef fullname: Benyoussef, A. organization: Laboratory of Magnetism and Physics of High Energies, Department of Physics, URAC 12, B.P. 1014, Faculty of Science,University Mohammed V, Rabat, Morocco – sequence: 5 givenname: A. surname: El Kenz fullname: El Kenz, A. organization: Laboratory of Magnetism and Physics of High Energies, Department of Physics, URAC 12, B.P. 1014, Faculty of Science,University Mohammed V, Rabat, Morocco |
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Cites_doi | 10.1103/PhysRevB.50.14916 10.1016/S0010-4655(99)00495-6 10.1016/j.surfrep.2011.10.001 10.1103/PhysRevB.12.3060 10.1126/science.1103346 10.1016/j.commatsci.2006.01.013 10.1103/PhysRevLett.102.236804 10.1088/1367-2630/16/9/095002 10.1088/0953-8984/27/44/443002 10.1166/jctn.2014.3428 10.1002/smll.201402041 |
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Title | Comparative study of electronic and optical properties of graphene and germanene: DFT study |
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