Abstract:The formation of macroscale carbon structures characterised by an sp-sp2-hybridization is realised by self-assembly in colloidal solutions under an effect of laser irradiation and electromagnetic fields. The sponge-like morphology, sculptured with gold nanoparticles (NPs) was revealed by Scanning Electron Microscopy (SEM) imaging. Full structural and defect characterization of the self-assembled sponges was provided using the micro-Raman spectroscopic technique. The synthesized clusters manifest themselves in … Show more
“…Figure 3 displays the modification of Raman spectra of carbon linear structures obtained by us in a colloid, depending on their configuration (cf. [16,25]).…”
Section: Methods and Experimental Conditionsmentioning
confidence: 99%
“…The polyyne structure of atomic carbon chains is reflected by bands of stretching vibrations of triple bonds (ÀC CÀ) in the range of 2100±2300 cm À1 and bending vibrations at 800 cm À1 [6,9,16,104]. Thus, the shift of this peak (2100± 2300 cm À1 ) to the short-wavelength region during laser irradiation of the colloidal system is explained by a change in the length of the carbon chain.…”
Section: Changes In the Spectral Characteristics Of 1d Carbon Structu...mentioning
confidence: 99%
“…A separate issue is the creation of metasurfaces based on such LLCCs (sp-electron configuration) [16] when they are deposited on the surface of a solid substrate, including by the method of a spraying jet [6 ,17].…”
Laser-induced carbon 1D structures and some of their electrophysical properties have been studied by means of computer simulations. Evidence of the possible emergence of a new allotropic phase of carbon (carbyne) produced through laser melting of graphite has been experimentally demonstrated. Methods for obtaining topological nanoclusters of controlled modifications using laser ablation are discussed, and the obtained images are presented. The main results of modeling 1D structures with fractal fragments are considered. Raman spectra with corresponding confirmation of the existence of laser-induced low-dimensional carbon structures are displayed. The structures discovered enable the development of next-generation elements and devices for nanoelectronics and nanophotonics based on new physical principles.
“…Figure 3 displays the modification of Raman spectra of carbon linear structures obtained by us in a colloid, depending on their configuration (cf. [16,25]).…”
Section: Methods and Experimental Conditionsmentioning
confidence: 99%
“…The polyyne structure of atomic carbon chains is reflected by bands of stretching vibrations of triple bonds (ÀC CÀ) in the range of 2100±2300 cm À1 and bending vibrations at 800 cm À1 [6,9,16,104]. Thus, the shift of this peak (2100± 2300 cm À1 ) to the short-wavelength region during laser irradiation of the colloidal system is explained by a change in the length of the carbon chain.…”
Section: Changes In the Spectral Characteristics Of 1d Carbon Structu...mentioning
confidence: 99%
“…A separate issue is the creation of metasurfaces based on such LLCCs (sp-electron configuration) [16] when they are deposited on the surface of a solid substrate, including by the method of a spraying jet [6 ,17].…”
Laser-induced carbon 1D structures and some of their electrophysical properties have been studied by means of computer simulations. Evidence of the possible emergence of a new allotropic phase of carbon (carbyne) produced through laser melting of graphite has been experimentally demonstrated. Methods for obtaining topological nanoclusters of controlled modifications using laser ablation are discussed, and the obtained images are presented. The main results of modeling 1D structures with fractal fragments are considered. Raman spectra with corresponding confirmation of the existence of laser-induced low-dimensional carbon structures are displayed. The structures discovered enable the development of next-generation elements and devices for nanoelectronics and nanophotonics based on new physical principles.
Laser-induced carbon 1D structures and some of their electrophysical properties have been studied by means of computer simulations. Evidence of the possible emergence of a new allotropic phase of carbon (carbyne) produced through laser melting of graphite has been experimentally demonstrated. Methods for obtaining topological nanoclusters of controlled modiécations using laser ablation are discussed, and the obtained images are presented. The main results of modeling 1D structures with fractal fragments are considered. Raman spectra with corresponding conérmation of the existence of laser-induced low-dimensional carbon structures are displayed. The structures discovered enable the development of next-generation elements and devices for nanoelectronics and nanophotonics based on new physical principles.
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