Twisted monolayer black phosphorus nanoribbbons: Tunable electronic and optical properties

Carmel, Santhia; Subramanian, Sriram; Rathinam, Ramesh; Bhattacharyya, Arkaprava

doi:10.1063/1.5138704

Cited by 11 publications

(5 citation statements)

References 39 publications

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“…[ 187 ] A DFT calculation predicted that such a twist leads to a tunable optical bandgap and an extension of the spectral region from the IR to the visible region. [ 188 ]…”

Section: Modulation Of Optical Anisotropymentioning

confidence: 99%

“…[187] A DFT calculation predicted that such a twist leads to a tunable optical bandgap and an extension of the spectral region from the IR to the visible region. [188] In the experiments, the strain-regulated anisotropy in Raman response was investigated in few-layer BP. [189] Adopting uniaxial tensile strain along the zigzag direction causes an apparent redshift in B 2g and A g 2 peaks, while the A g 1 peak remains unchanged.…”

Section: Strainmentioning

confidence: 99%

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Review of Anisotropic 2D Materials: Controlled Growth, Optical Anisotropy Modulation, and Photonic Applications

Liu

et al. 2021

Laser & Photonics Reviews

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Anisotropic 2D materials are promising building blocks for future photonic and optoelectronic devices due to their low structural symmetry and in-plane optical anisotropy. This review systematically summarizes the crystalline structure, growth dynamics, optical anisotropy and their modulation strategies, and the corresponding photonic applications for emerging anisotropic 2D materials. First, the physical properties and crystalline structures of typical anisotropic 2D materials are briefly introduced. After that, special attention is paid to the growth mechanism of low-symmetry lattices, where the competition between different growth modes determines the crystal morphologies. Then, the physical principles of anisotropic optical absorption, photoluminescence, Raman scattering, photodetection, and nonlinear response are discussed based on recent scientific advances. The discussion on the techniques to modify the intrinsic in-plane anisotropy, along with the possibility of introducing optical anisotropy to the isotropic materials, add a new degree of freedom to the control over their optical properties. The review of application prospects also helps bridge the gap between the scientific exploration of novel anisotropic materials and the development of polarization-sensitive photonic devices. The discussions in this review will push forward the scientific frontier in the crystalline growth and anisotropy control of anisotropic 2D materials.

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“…[ 187 ] A DFT calculation predicted that such a twist leads to a tunable optical bandgap and an extension of the spectral region from the IR to the visible region. [ 188 ]…”

Section: Modulation Of Optical Anisotropymentioning

confidence: 99%

Section: Strainmentioning

confidence: 99%

Review of Anisotropic 2D Materials: Controlled Growth, Optical Anisotropy Modulation, and Photonic Applications

Liu

et al. 2021

Laser & Photonics Reviews

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show abstract

“…During the data analysis, it was noticed that the structure undergoes a certain twisting dependent on the strain occurring in the structure. Surprisingly, the twisting phenomenon of phosphorene nanoribbons was attributed to their anisotropic properties . This kind of twisting should not be confused with twists used for the generation of Moiré patterns in phosphorene.…”

Section: Resultsmentioning

confidence: 92%

“…Surprisingly, the twisting phenomenon of phosphorene nanoribbons was attributed to their anisotropic properties. 38 This kind of twisting should not be confused with twists used for the generation of Moirépatterns in phosphorene. The twist in our experiments does not occur between planes (as required for Moirépatterns 39 ) but within the plane along the zigzag axis.…”

Section: Materials Properties Of Few-layer Pnr With Amentioning

confidence: 99%

Atomic-Scale Finite-Element Modeling of Elastic Mechanical Anisotropy in Finite-Sized Strained Phosphorene Nanoribbons

Pyrchla

Bogdanowicz

2022

J. Phys. Chem. C

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Nanoribbons are crucial nanostructures due to their superior mechanical and electrical properties. This paper is devoted to hybrid studies of the elastic mechanical anisotropy of phosphorene nanoribbons whose edges connect the terminals of devices such as bridges. Fundamental mechanical properties, including Young’s modulus, Poisson’s ratio, and density, were estimated from first-principles calculations for 1-layer, 3-layer, and 6-layer nanoribbons with widths of 10 Å. The data achieved from the ab initio simulations supplied the finite-element model (FEM) of the nanoribbons. The directional coefficients of strain pressure curves were estimated as Young’s effective modulus since the structure is one-dimensional (1D). The modulus values were equal to 85.8, 111.8, and 134 GPa for 6, 3 and 1 layers, respectively. Moreover, the variation in Poisson’s coefficient for the armchair direction was significantly smaller than for the zigzag direction. Monotonic changes in this twist were observed for structures with 3 and 6 layers within the plane along the zigzag axis. The phosphorene nanoribbons subjected to periodic excitation behaved similarly to those subjected to static loading, while their whippiness was inversely proportional to the length. Next, the deflection under static force, resonance frequencies, and response to a variable driving force were calculated.

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“…A tunable optical property is highly desirable and an added advantage of optoelectronics applications. Fortunately, BP has excellent tunable parameters, such as thickness (layers), 40,41 passivation, 42 strain, [43][44][45][46] doping, 47 and twisting, 48 covering a wide spectrum. 49 The linear absorption and phonon excitation measurements are used to determine the optical properties of BP.…”

Section: Opticalmentioning

confidence: 99%

Recent Developments in Black Phosphorous Transistors: A Review

Pon

Bhattacharyya

Rathinam

2021

J. Electron. Mater.

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Two-dimensional (2D) materials like graphene, phosphorene, germanene, silicene, and transition metal dichalcogenides have attracted intense research attention because of their rich physics and potential for integration into next-generation electronic devices. These materials offer superior electrostatic control to their bulk counterparts, which makes them fascinating for device fabrication. After graphene and MoS 2 , the most intensively explored 2D material is black phosphorus (BP). During the past half-decade, BP has notably achieved excellent performance when included in transistors. This review paper aims to throw some light on BP properties and their performance in a field effect transistor device. The state-of-the-art BP transistors are reviewed, and a balanced view of both the benefits and drawbacks is provided. Keywords 2D material • black phosphorous • phosphorene • TCAD • DFT • MOSFET • TFET* Ramesh Rathinam

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Twisted monolayer black phosphorus nanoribbbons: Tunable electronic and optical properties

Cited by 11 publications

References 39 publications

Review of Anisotropic 2D Materials: Controlled Growth, Optical Anisotropy Modulation, and Photonic Applications

Review of Anisotropic 2D Materials: Controlled Growth, Optical Anisotropy Modulation, and Photonic Applications

Atomic-Scale Finite-Element Modeling of Elastic Mechanical Anisotropy in Finite-Sized Strained Phosphorene Nanoribbons

Recent Developments in Black Phosphorous Transistors: A Review

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