Journal ArticleDOI
Ab Initio Investigation of the Structural and Electronic Properties of HgTe/CdTe Superlattices
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In this article, the authors carried out first-principle calculations to examine the impact of layer periodicity and strain on the structural and electronic features of HgTe/CdTe superlattices (SLs).Abstract:
We carried out first-principle calculations to examine the impact of layer periodicity and strain on the structural and electronic features of HgTe/CdTe superlattices (SLs). The full-potential linearized augmented plane wave methodology is used to determine the electronic characteristics of these CdTe-HgTe heterojunctions. The CdTe and HgTe layers have a strong effect on the emerged fundamental energy gap of the SLs owing to the peculiar quantum confinement effect. The impact of layer thickness changes and strain are indispensable for engineering the energy band gap of HgTe/CdTe SLs. This could lead to an enormous development in the optoelectronic characteristics of these SLs, which may result in their broad applications in electronic devices.read more
Citations
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Electrochemical properties of NiCoO2 synthesized by hydrothermal method
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Structural, Electrical, and Magnetic Properties of Ferrite–Polymer Composites
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References
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Self-Consistent Equations Including Exchange and Correlation Effects
Walter Kohn,L. J. Sham +1 more
TL;DR: In this paper, the Hartree and Hartree-Fock equations are applied to a uniform electron gas, where the exchange and correlation portions of the chemical potential of the gas are used as additional effective potentials.
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Generalized Gradient Approximation Made Simple [Phys. Rev. Lett. 77, 3865 (1996)]
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Accurate band gaps of semiconductors and insulators with a semilocal exchange-correlation potential.
Fabien Tran,Peter Blaha +1 more
TL;DR: This semilocal exchange potential, which recovers the local-density approximation for a constant electron density, mimics very well the behavior of orbital-dependent potentials and leads to calculations which are barely more expensive than LDA calculations, which can be applied to very large systems in an efficient way.
Journal ArticleDOI
Properties of 19.2% efficiency ZnO/CdS/CuInGaSe2 thin‐film solar cells
Kannan Ramanathan,Miguel A. Contreras,Craig L. Perkins,Sally Asher,Falah S. Hasoon,James Keane,David L. Young,Manuel J. Romero,Wyatt K. Metzger,Rommel Noufi,J.S. Ward,Anna Duda +11 more
TL;DR: In this article, the authors report the growth and characterization of record-efficiency ZnO/CdS/CuInGaSe2 thin-film solar cells, achieving conversion efficiencies exceeding 19% for the first time.
Properties of 19.2% efficiency Zn0/CdS/CuInGaSe_2 thin-film solar cells
TL;DR: In this article, the authors report the growth and characterization of record-efficiency ZnO/CdS/CuInGaSe2 thin-film solar cells, achieving conversion efficiencies exceeding 19% for the first time.
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