Journal ArticleDOI
Electronic Structures of Porous Graphene, BN, and BC2N Sheets with One- and Two-Hydrogen Passivations from First Principles
TLDR
In this article, the structural and electronic properties of monolayer porous graphene (C), BN, and BC2N sheets with one-hydrogen passivation were investigated. But the porous BN sheet has a larger band gap than the porous C one, whereas the porous BC 2N sheets have variable band gaps depending on the atomic arrangements of B, C and N atoms.Abstract:
Using first-principles calculations, we investigate the structural and electronic properties of monolayer porous graphene (C), BN, and BC2N sheets. All the porous C, BN, and BC2N sheets with one-hydrogen passivation exhibit direct-band-gap semiconducting behaviors. The porous BN sheet has a larger band gap than the porous C one, whereas the porous BC2N sheets have variable band gaps depending on the atomic arrangements of B, C, and N atoms. The stablest conformation of porous BC2N sheets is composed of C and BN hexagons, whereas with two-hydrogen passivation, it becomes the structure containing continuous BN and interrupted C zigzag lines. Furthermore, due to the sp3 hybridization of the edge atoms, the two-hydrogen passivation induces the changes of band gaps as well as direct-to-indirect band-gap transitions in all the porous sheets. We also find that it is more possible to form the porous C and BC2N structures in experiments than the porous BN ones. Our studies demonstrate that the porous C, BN, and BC...read more
Citations
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Journal ArticleDOI
Spectral modulation of BCNO phosphors by Al3+ and Ti4+ doping for white LEDs
Xinghua Zhang,Jingjing Yu,Zunming Lu,Hui Liu,Jia Xiaobo,Chunrong Ren,Xiaojing Yang,Fanbin Meng,Chengchun Tang +8 more
TL;DR: In this article, the spectral properties of BCNO phosphors with Al3+ and Ti4+ doping were systematically investigated and their spectral properties were shown to be good candidates for white LED with ultraviolet and blue light excitation.
Journal ArticleDOI
Electronic properties of porous graphene, α-graphyne, graphene-like, and graphyne-like BN sheets
TL;DR: In this article, the electronic properties of two-dimensional porous C and BN sheets based on graphene and α-graphyne are studied. And density functional theory has been used to investigate the properties of these two-dimensions.
Journal ArticleDOI
Electronic structure study on 2D hydrogenated Icosagens nitride nanosheets
TL;DR: In this paper, the geometric stability and electronic properties of hydrogenated Icosagen nitride nanosheets were investigated using density functional theory, and the band structure of the hydrogenated sheets was found to be n-type semiconductor.
Journal ArticleDOI
First-principles analysis of seven novel phases of phosphorene with chirality
TL;DR: In this paper, seven novel phases of phosphorene were predicted to be existent by first-principles calculations, including six kinds of enantiomers corresponding to three kinds of structures with chirality.
Journal ArticleDOI
Enhanced electromagnetic interference shielding effectiveness of h-BN decorated micro cube-like CaTiO3/Cu nanocomposite
R. A. Nevzorov,ROBERT NEYMEYER +1 more
TL;DR: In this paper , two CaTiO3-based composites, CT/C (CaTiO 3/Cu) and CT/c/B (CT/C/hexagonal boron nitride, h-BN), were fabricated to improve the microwave absorption performance.
References
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Journal ArticleDOI
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Georg Kresse,Jürgen Furthmüller +1 more
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Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set
Georg Kresse,Jürgen Furthmüller +1 more
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 rise of graphene
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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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