Anisotropic Kubo conductivity of electric field-induced monolayer β<sub>12</sub>-borophene

Nobahari, Mohammad Mortezaei

doi:10.1039/d1ra07945j

Cited by 7 publications

(3 citation statements)

References 30 publications

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“…Figure 7 shows real and imaginary parts of the intra-band optical conductivity in the presence of the biaxial strain. Our results show a similarity between the intra-band optical conductivity of the h-BP with graphene and -borophene 50 , 51 . Applying strain doesn’t shift the plots and only changes the height of the real and imaginary parts.…”

Section: Discussionsupporting

confidence: 67%

Electro-optical properties of strained monolayer boron phosphide

Nobahari

2023

Sci Rep

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In this paper, we use tight-binding approximation and linear response theory to study the electronic and optical properties of strained monolayer boron-phosphide (h-BP). Compared with the previous DFT study and adding on-site energy variation to the Hamiltonian, we propose a theoretical approach to investigate the strain effects on the electronic and optical properties of the h-BP. Applying tensile strain increases the gap while compressive strain reduces it as the maximum and minimum of the gap are 1.45 eV and 1.14 eV respectively and are related to the biaxial strain. Also, we investigate the optical conductivity and electron energy loss spectrum (EELS) of the pristine and strained h-BP. The absorption peak of the $$\Re\sigma_{xx,yy}$$ ℜ σ x x , y y appears in energy about 4 eV but applying strain shifts the peak’s energy. Optical properties of pristine h-BP are isotopic and biaxial strain preserves this isotropy, but uniaxial strain exerts anisotropic behavior in the system.

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Section: Discussionsupporting

confidence: 67%

Electro-optical properties of strained monolayer boron phosphide

Nobahari

2023

Sci Rep

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“…7 shows real and imaginary parts of the intra-band optical conductivity in the presence of the biaxial strain. Our results show a similarity between the intra-band optical conductivity of the h-BP with graphene and β 12 -borophene 42,43 . Applying strain doesn't shift the plots and only changes the height of the real and imaginary parts.…”

Section: /13supporting

confidence: 65%

Electro-optical properties of strained monolayer boron phosphide: A tight-binding study

Nobahari

2023

Preprint

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This paper uses tight-binding approximation and linear response theory to study the electronic and optical properties of strained monolayer boron-phosphide (h-BP). Using previous DFT results, we propose a theoretical tight-binding approach to investigate the strain effects on the electronic and optical properties of the h-BP. Furthermore, we investigate the intra-band and inter-band optical conductivity of pristine and strained h-BP. The isotropic intra-band and inter-band optical conductivity of pristine h-BP are similar to graphene but applying uniaxial strain exerts anisotropic behavior in the system.

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“…Moreover, graphene's absorption spectrum is empty in the ultraviolet region, ranging from (900–300) ×

, with a maximum absorption peak about 270 nm [ 126 ]. In summary, several studies established that graphene has a Drude-like intra-band conductivity based on Ω = 0, followed by an area of reduced conductivity at higher energies before a sudden rise to a steady comprehensive framework value of

indicating that graphene exhibits semi-metallic behaviour [ 125 , 127 , 128 ]. The transitions between the fully filled valence band and the unfilled conduction band are known as inter-band transitions, and this accounts for its optical sensitivity [ [129] , [130] , [131] , [132] ].…”

Section: Overview Of the Heritage Of Graphene And Selected Propertiesmentioning

confidence: 99%

Recent advances in density functional theory approach for optoelectronics properties of graphene

Olatomiwa¹,

Adam²,

Edet³

et al. 2023

Heliyon

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Anisotropic Kubo conductivity of electric field-induced monolayer β₁₂-borophene

Abstract: The optical conductivity of β12-borophene for polarized light along x direction is studied.

Cited by 7 publications

References 30 publications

Electro-optical properties of strained monolayer boron phosphide

Electro-optical properties of strained monolayer boron phosphide

Electro-optical properties of strained monolayer boron phosphide: A tight-binding study

Recent advances in density functional theory approach for optoelectronics properties of graphene

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Anisotropic Kubo conductivity of electric field-induced monolayer β12-borophene

Abstract: The optical conductivity of β12-borophene for polarized light along x direction is studied.

Cited by 7 publications

References 30 publications

Electro-optical properties of strained monolayer boron phosphide

Electro-optical properties of strained monolayer boron phosphide

Electro-optical properties of strained monolayer boron phosphide: A tight-binding study

Recent advances in density functional theory approach for optoelectronics properties of graphene

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Anisotropic Kubo conductivity of electric field-induced monolayer β₁₂-borophene