Raman spectrum of single-walled boron nitride nanotube

Fakrach, B.; Rahmani, Abdelali; Chadli, H.; Sbai, K.; Sauvajol, Jean‐Louis

doi:10.1016/j.physe.2009.07.002

Cited by 26 publications

(16 citation statements)

References 28 publications

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“…This statement appears to be in agreement with the point that no equivalent Raman peak is observed either with non-symmetric A edges of the h-BN structure for instance [26,231]. This model will also explain why this so-called D “disorder” peak is only appearing on the smaller dust polycrystalline graphite particles and not for the defect free polycrystalline graphite bulk.…”

Section: Brief Review Of Revisited Carbon Raman Spectroscopysupporting

confidence: 87%

“…An effect which is also confirmed with the Raman spectroscopy of the h-BN material for which no equivalent peak to the carbon D “disorder” peak exists [231], in contrast to the possible existence of an intense so-called 2D peak (2GeA) which is observed in some graphene Raman spectra which paradoxically are not showing any so-called D disorder peak (GeA) [218,219].…”

Section: Defect Characterizing With Raman Spectroscopymentioning

confidence: 80%

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Selective Carbon Material Engineering for Improved MEMS and NEMS

Neuville¹

2019

Micromachines

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The development of micro and nano electromechanical systems and achievement of higher performances with increased quality and life time is confronted to searching and mastering of material with superior properties and quality. Those can affect many aspects of the MEMS, NEMS and MOMS design including geometric tolerances and reproducibility of many specific solid-state structures and properties. Among those: Mechanical, adhesion, thermal and chemical stability, electrical and heat conductance, optical, optoelectronic and semiconducting properties, porosity, bulk and surface properties. They can be affected by different kinds of phase transformations and degrading, which greatly depends on the conditions of use and the way the materials have been selected, elaborated, modified and assembled. Distribution of these properties cover several orders of magnitude and depend on the design, actually achieved structure, type and number of defects. It is then essential to be well aware about all these, and to distinguish and characterize all features that are able to affect the results. For this achievement, we point out and discuss the necessity to take into account several recently revisited fundamentals on carbon atomic rearrangement and revised carbon Raman spectroscopy characterizing in addition to several other aspects we will briefly describe. Correctly selected and implemented, these carbon materials can then open new routes for many new and more performing microsystems including improved energy generation, storage and conversion, 2D superconductivity, light switches, light pipes and quantum devices and with new improved sensor and mechanical functions and biomedical applications.

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Section: Brief Review Of Revisited Carbon Raman Spectroscopysupporting

confidence: 87%

Section: Defect Characterizing With Raman Spectroscopymentioning

confidence: 80%

Selective Carbon Material Engineering for Improved MEMS and NEMS

Neuville¹

2019

Micromachines

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“…In comparison with carbon nanotubes for which a similar a/Dtrend has been obtained [27], the value of the a parameter is greater than that found in SWCNTs. In contrast, in comparison with boron nitride nanotubes for which a similar a/D trend has been obtained [20], [34], [28], [44], the value of the a parameter is consistent with that found in SWBNNTs. [20] The bands structures and the electronic density were calcu-lated for one super-cell of (10.10)@(15.15) and (17.0)@(26.0) tubes.…”

Section: Rblm(bnnt)(101cm-1) Rblm(cnt) (173cm-1)supporting

confidence: 87%

“…One of the most powerful tools to investigate nanotructures vibrational, optical and electronic properties is Raman spectroscopy. Vibrational Raman spectroscopy has been shown to play a major role in CNTs [14,15,16,17] and in BNNTs [18,19,20].Raman spectra of CNTs and BNNTs show a strong line located in the 1570-1600 cm −1 range [21] and in the 1360-1380 cm −1 range [22,23,24,25,26]. Raman spectra of SCNTs and SBNNTs are dominated by the so called radial breathing mode (RBM) below 500cm −1 and by the tangential modes(TM) between 1200 and 1600cm −1 [27,28,29].The thermal treatment of fullerene inside BNNTs (C60@BNNT) at 1200…”

Section: Introductionmentioning

confidence: 99%

Electronic and Vibrational studies of Single Wall Carbon Nanotubes inside Boron nitride Nanotubes

Nassir¹

2020

IJATCSE

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This work focuses on Raman spectra and band gap calculations of single-walled carbon nanotube (SWCNT) inside single-walled boron nitride nanotube (SWBNNT). The diameter and chirality effects are discussed. The spectral moment's method was shown to be a powerful tool for determining vibrational spectra (infrared absorption, Raman scattering and inelastic neutron-scattering spectra) of harmonic systems. The calculations of vibrational properties of double-walled hybrid nanostructures SWCNT inside SWBNNT (SWCNT@SWBNNT) are performed in the framework of the force constants model, using the spectral moment's method (SMM). The electronic density of states and the band structures of our systems was investigated. This study can provide benchmark to understand the experimental data of SWCNT@SWBNNT nanotubes.

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“…This mode is also the most appropriate for extracting structural and dynamical information of SWBNNT. A few years ago, we found [32,47], using the bond polarizability model combined with the spectral moments method, a relation for isolated tubes between their diameter D and their RBM frequency: ω RBM = a/D, where a = 198 nm.cm −1 . This relation was in agreement with the different approaches reported in the literature [48][49][50].…”

Section: Raman Spectra Of Completely Filled Peapodsmentioning

confidence: 99%

Structure and Raman Spectra of C60 and C70 Fullerenes Encased into Single-Walled Boron Nitride Nanotubes: A Theoretical Study

et al. 2018

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We report the structures and the nonresonant Raman spectra of hybrid systems composed of carbon fullerenes (C 60 and C 70 ) encased within single walled boron nitride nanotube. The optimal structure of these systems are derived from total energy minimization using a convenient Lennard-Jones expression of the van der Waals intermolecular potential. The Raman spectra have been calculated as a function of nanotube diameter and fullerene concentration using the bond polarizability model combined with the spectral moment method. These results should be useful for the interpretation of the experimental Raman spectra of boron nitride nanotubes encasing C 60 and C 70 fullerenes.

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Raman spectrum of single-walled boron nitride nanotube

Cited by 26 publications

References 28 publications

Selective Carbon Material Engineering for Improved MEMS and NEMS

Selective Carbon Material Engineering for Improved MEMS and NEMS

Electronic and Vibrational studies of Single Wall Carbon Nanotubes inside Boron nitride Nanotubes

Structure and Raman Spectra of C60 and C70 Fullerenes Encased into Single-Walled Boron Nitride Nanotubes: A Theoretical Study

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