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The electronic, optical, and thermodynamic properties of borophene from first-principles calculations

TLDR
In this article, the electronic structure and bonding characteristics of borophene were investigated by first-principles calculations, and the obtained optical properties exhibited strong anisotropy as well.
Abstract
Borophene (a two-dimensional boron sheet) is a new type of two-dimensional material, which was recently grown successfully on single crystal Ag substrates. In this paper, we investigate the electronic structure and bonding characteristics of borophene by first-principles calculations. The band structure of borophene shows highly anisotropic metallic behaviour. The obtained optical properties of borophene exhibit strong anisotropy as well. Finally, the thermodynamic properties are investigated based on the phonon properties.

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Strain effects on borophene: ideal strength, negative Possion’s ratio and phonon instability

TL;DR: In this paper, the authors performed first-principle calculations to investigate the mechanical properties of the monolayer borophene, including ideal tensile strength and critical strain.
Journal ArticleDOI

The Rise of 2D Photothermal Materials beyond Graphene for Clean Water Production

TL;DR: The role of 2D photothermal nanomaterials in solving water challenges is highlighted and a viable scheme toward the practical use in photothermal materials selection, design, and evaporation systems building is provided.
Journal ArticleDOI

Stability and strength of atomically thin borophene from first principles calculations

TL;DR: In this article, the authors examined the dynamical, thermodynamic and mechanical stability of, and striped borophene, and showed a deep connection between stability and strength, and helped researchers to estimate accurately the mechanical performance of 2D materials.
Journal ArticleDOI

The Ideal Tensile Strength and Phonon Instability of Borophene

TL;DR: In this article, the authors performed first-principle calculations to investigate the mechanical properties of the monolayer borophene, including ideal tensile strength and critical strain.
Journal ArticleDOI

Mechanical responses of borophene sheets: a first-principles study.

TL;DR: Based on the results of the modelling, borophene films depending on the atomic configurations and the loading direction can yield a remarkable elastic modulus in the range of 163-382 GPa nm and a high ultimate tensile strength.
References
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Journal ArticleDOI

Generalized Gradient Approximation Made Simple

TL;DR: A simple derivation of a simple GGA is presented, in which all parameters (other than those in LSD) are fundamental constants, and only general features of the detailed construction underlying the Perdew-Wang 1991 (PW91) GGA are invoked.
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Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set.

TL;DR: An efficient scheme for calculating the Kohn-Sham ground state of metallic systems using pseudopotentials and a plane-wave basis set is presented and the application of Pulay's DIIS method to the iterative diagonalization of large matrices will be discussed.
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Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set

TL;DR: A detailed description and comparison of algorithms for performing ab-initio quantum-mechanical calculations using pseudopotentials and a plane-wave basis set is presented in this article. But this is not a comparison of our algorithm with the one presented in this paper.
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The electronic properties of graphene

TL;DR: In this paper, the basic theoretical aspects of graphene, a one-atom-thick allotrope of carbon, with unusual two-dimensional Dirac-like electronic excitations, are discussed.
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Hybrid functionals based on a screened Coulomb potential

TL;DR: In this paper, a new hybrid density functional based on a screened Coulomb potential for the exchange interaction is proposed, which enables fast and accurate hybrid calculations, even of usually difficult metallic systems.
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