Computer Design of Two-Dimensional Monolayers with Octahedral 1,6-Carborane Units

被引:4
|
作者
Steglenko, D., V [1 ]
Zaitsev, S. A. [1 ]
Minyaev, R. M. [1 ]
Minkin, V., I [1 ]
机构
[1] Southern Fed Univ, Inst Phys & Organ Chem, Rostov Na Donu 344090, Russia
基金
俄罗斯科学基金会;
关键词
octahedranes; 1,6-closo-boranes; two-dimensional materials; electronic band structure; phonon spectrum; DFT calculations; INITIO MOLECULAR-DYNAMICS; TOTAL-ENERGY CALCULATIONS; MASSLESS DIRAC FERMIONS; BORON; SUPERTETRAHEDRANE; BORONIZATION; CARBORANES; STABILITY; SHEETS; GAS;
D O I
10.1134/S0036023619080163
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The structure and properties of two-dimensional monolayers composed of 1,6-carboranes have been studied by means of density functional theory calculations with periodic boundary conditions. Calculations of the phonon dispersion spectrum and band structure have shown that the 2D monolayers are dynamically stable and refer to indirect band gap semiconductors with a band gap of similar to 2.5 eV. Calculations of mechanical properties demonstrate that Young's modulus for 2D 1,6-carborane nanosheets is lower than that for the monolayer of hexagonal boron nitride (h-BN) but exceeds that for the MoS2 monolayer.
引用
收藏
页码:1031 / 1034
页数:4
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