Enhancing the mechanical surface strength of “soft” materials for the UV and IR ranges and increasing their transmission spectrum: Model MgF_2-nanotube system

Каманина, Н. В.; Vasilev, P.; Studenov, V. I.; Bogdanov, K. Yu.

doi:10.1364/jot.77.000145

Cited by 11 publications

(10 citation statements)

References 2 publications

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“…It should be remarked once again that based on these data one could testify that the redistribution of the electron density directly on the KBr/CNT interface have to change the electronic properties of the whole structure by means of the formation of the additional electronic levels. It connected with the spectral and mechanical properties improvement obtained by experiments and coincided with the results obtained before for other materials [11,12], for example, based on the ITO coatings structured by CNTs [13].…”

Section: Materials Studiedsupporting

confidence: 89%

Advantages of the Surface Structuration of the KBr Materials for the Spectrometry and Sensors

Каманина¹,

Likhomanova²,

Kuzhakov³

2018

Preprint

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A potassium bromide KBr material, which has been widely used as the key element in the Fourier spectrometers and as the output window of the IR-lasers, has been studied with good advantage via applying the carbon nanotubes in order to modify the potassium bromide surface. The laser oriented deposition method has been used to place the carbon nanotubes at the matrix material surface in the vertical position at the different electric field varied from 100 to 600 V×cm-1. The main idea of the improvement of the spectral properties of the potassium bromide structure is connected with the fact that the refractive index of the carbon nanotubes is substantially less than the refractive index of the studied material, and the small diameter of the carbon nanotubes allows one to embed these nano-objects in the voids of the lattice of the model matrix systems. Moreover, the mechanical characteristics and wetting features of the potassium bromide structures have been investigated under the condition mentioned above. Analytical and quantum-chemical simulations have supported the experimental results.

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Section: Materials Studiedsupporting

confidence: 89%

Advantages of the Surface Structuration of the KBr Materials for the Spectrometry and Sensors

Каманина¹,

Likhomanova²,

Kuzhakov³

2018

Preprint

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“…Indeed, R a and S q roughness characteristics have been decreased up to three times. For one nanotubes, using the CNTs data [55] and our calculation [54], W elast = 1.8×10 -20 J and W MgC = 0.4×10 −20 J. Indeed, this process is connected with the nature of the pure materials; it depends on the crystalline axis and the defects in the volume of the materials.…”

Section: Spectral and Mechanical Properties Of The Inorganic Materialmentioning

confidence: 73%

Advanced Optical Materials Modified with Carbon Nano‐Objects

Каманина¹

2013

Advanced Carbon Materials and Technology

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Using different types of modern effective nanoparticles such as fullerenes, carbon nanotubes, shungites, graphene oxides, quantum dots, etc., the properties of organic and inorganic systems have been considered after applying nano-objects to modify the bulk and interface features of these systems. Some evidence of the nanostructures infl uence on the photorefractive, photoconductive, and dynamic characteristics of the organic conjugated materials with initial donor-acceptor interaction has been shown. A correlation between photorefractive and photoconductive characteristics has been found, and the mechanisms responsible for this correlation are discussed. Moreover, the spectral and mechanical properties of the inorganic compounds have been shown under the conditions of the nanoobjects modifi cation.

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“…Analyzing these data, it is evident that the process of laser deposition of CNTs on the surface of the studied materials changes the spectral parameters, leading to a substantial increase of transmittance and decrease of Fresnel losses due to the covalent binding of the CNTs to the surface of the material [25,26] with regard to the small value of the imaginary part of permittivity of CNTs and their small refractive index that can be <1.1.…”

Section: Mgf 2 and Relative Structures: Spectral Parameters Wetting mentioning

confidence: 98%

“…Of course, not only essential mechanical properties of carbon nanotubes should be considered when one analyzes these data, but also the formation of predicted covalent bonds between carbon nanotubes and the surface atoms of the investigated materials. It should be mentioned that the analytical calculations presented in the paper [26] for the model MgF 2 structure have shown that in order to destroy the structured material surface we should firstly to bend the vertically oriented nanotubes with energy of 1.8 × 10…”

Section: Mgf 2 and Relative Structures: Spectral Parameters Wetting mentioning

confidence: 99%

Perspective of the Structuration Process Use in the Optoelectronics, Solar Energy, and Biomedicine

Каманина¹

2017

Nanomechanics

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In the current chapter, the results of the optimized organic and inorganic materials features have been presented and discussed under the conditions when the material volumetric body and their surfaces have been structured. The dramatic change of the main characteristics of the inorganic matrix which surface has been modified with oriented carbon nanotubes and additionally treated by surface electromagnetic waves has been established. The transmittance and reflection spectral change, of the micro-hardness and of the wetting angle increase have been discussed due to the covalent bonding of the carbon nanotubes with the near-surface materials layers. Analytic and molecular dynamics simulations have supported the data. The essential change of the basic macro-parameters of the organic matrix, including the liquid crystal one, via their structuration with the nano-and/or bio-objects such as the fullerenes, carbon nanotubes, shungites, quantum dots, graphene oxides, DNA has been found. The spectral, photorefractive, and photoconductive characteristics modification has been discussed due to the drastic increase of the dipole moment. The laser-induced change of the refractive index has been considered as the indicator of the basic materials macro-parameters changing. It has been predicted that a scientific knowledge and the technology advances can be useful for the solar energy, display technique, for the system to absorb the gas and impurities, for the schemes with the compacted information recording as well as for the biomedicine.

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Enhancing the mechanical surface strength of “soft” materials for the UV and IR ranges and increasing their transmission spectrum: Model MgF_2-nanotube system

Cited by 11 publications

References 2 publications

Advantages of the Surface Structuration of the KBr Materials for the Spectrometry and Sensors

Advantages of the Surface Structuration of the KBr Materials for the Spectrometry and Sensors

Advanced Optical Materials Modified with Carbon Nano‐Objects

Perspective of the Structuration Process Use in the Optoelectronics, Solar Energy, and Biomedicine

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