Laser-induced synthesis of metal–carbon materials for implementing surface-enhanced Raman scattering

Kucherik, A. O.; Аракелян, С. М.; Vartanyan, T. A.; Kutrovskaya, S.; Osipov, A.; Povolotckaia, Anastasia; Поволоцкий, А. В.; Manshina, Alina

doi:10.1134/s0030400x16080105

Cited by 23 publications

(25 citation statements)

References 17 publications

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“…The method is described in detail in refs. 11,12 . In particular, at the initial stage we prepare the colloidal solution of carbonaceous nanoparticles of a large size (about 100 nm) by the laser ablation of the shungite target in a distilled water.…”

Section: Methodsmentioning

confidence: 99%

“…A significant progress was recently achieved with the use of noble metal nanoparticles (NPs) as stabilizing agents. In particular, it was demonstrated 11,12 that the gold NPs of a few nanometer diameter are able to preserve carbyne chains from folding and bending even if the chain length exceeds tens of nanometers. Acting as heavy anchors, NPs can be used for the chain manipulation, in particular for its moving and stretching.…”

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confidence: 99%

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Electric field assisted alignment of monoatomic carbon chains

Kutrovskaya¹,

Chestnov²,

Osipov³

et al. 2020

Sci Rep

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We stabilize monoatomic carbon chains in water by attaching them to gold nanoparticles (NPs) by means of the laser ablation process. Resulting nanoobjects represent pairs of NPs connected by multiple straight carbon chains of several nanometer lengths. If NPs at the opposite ends of a chain differ in size, the structure acquires a dipole moment due to the difference in work functions of the two NPs. We take advantage of the dipole polarisation of carbon chains for ordering them by the external electric field. We deposit them on a glass substrate by the sputtering method in the presence of static electric fields of magnitudes up to 105 V/m. The formation of one-dimensional carbyne quasi-crystals deposited on a substrate is evidenced by high-resolution TEM and X-ray diffraction measurements. The original kinetic model describing the dynamics of ballistically flowing nano-dipoles reproduces the experimental diagram of orientation of the deposited chains.

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Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

Electric field assisted alignment of monoatomic carbon chains

Kutrovskaya¹,

Chestnov²,

Osipov³

et al. 2020

Sci Rep

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“…After the irradiation in similar condition [8] we have detected the peaks in the area of 1900-2200 cm -1 . This area corresponds to carbyne spectra [6][7][8][9].…”

Section: Laser Synthesis Of Metal-carbyne Materialsmentioning

confidence: 70%

Metal-carbon nanoclusters for SERS

Kucherik

Kutrovskaya

Osipov

et al. 2017

J. Phys.: Conf. Ser.

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Metal-carbon materials exhibiting surface-enhanced Raman scattering have been synthesized by laser irradiation of colloidal systems consisting of carbon and noble metal nanoparticles. The dependence of the Raman scattering intensity on the material composition has been investigated. The possibility of detecting of the Raman spectrum of organic due DCM and rhodamine 6G is demonstrated. IntroductionThe formation of new photonic materials is a promising area in laser physics. Bimetallic complexes of noble metals with particle sizes from 1 to 100 nm in carbon matrix are widely used as materials for implementing surface enhanced Raman scattering (SERS) [1]. The application of carbon as a matrix, stabilizing metal nanoparticles and preventing their degradation in environment, is interesting and promising [2]. The metal-carbon materials based on carbyne are of particular interest. Carbyne is a carbon polymer material [3]. The distance between neighboring atoms in a carbyne chain is 0.128 nm and the distance between chains is 0.295 nm; these values are much smaller than the distances between atoms and between layers in graphite: 0.142 and 0.335 nm, respectively. Carbyne has a unique of the optical and electrical properties [4].In this paper, we report the results of studying the formation of metal-carbyne under laser irradiation of colloidal systems, consisting of carbon and noble-metal nanoparticles. It is shown that this irradiation leads to the formation of clusters, in which metal nanoparticles are interrelated by carbon chains. The Raman spectra of these structures exhibit SERS.

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“…Namely, we observe a sharp increase of the conductivity of this hybrid film when optically exciting the system at the frequencies close to the plasmon resonance in gold nanoparticles. We study thin films formed by spraying under atmospheric pressure of a colloidal system containing gold nanoparticles and carbon polymers (Kucherik et al 2016). We deposited the solid constituent on an optically polished substrate for the morphology studies and on a special conductive grid for the transmission electron microscopy (TEM) studies.…”

Section: Introductionmentioning

confidence: 99%

Photosensitive free-standing ultra-thin carbyne–gold films

et al. 2019

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In the article we introduce the experiment of the photostimulation effect in the tunneling conductivity of free-standing thin C-Au films. We observe a sharp increase of the conductivity of hybrid film due to the electromagnetic exciting at the frequencies which are close to the plasmon resonance of gold nanoparticles. The use of carbyne threads as a stabilizing matrix makes it possible to obtain free-standing thin films that demonstrate a good structural stability. The tunnel current-voltage measurements demonstrate a strong dependence of the current value on the intensity of green laser radiation used to photostimulate thin C-Au in area of the measuring experiment.

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Laser-induced synthesis of metal–carbon materials for implementing surface-enhanced Raman scattering

Cited by 23 publications

References 17 publications

Electric field assisted alignment of monoatomic carbon chains

Electric field assisted alignment of monoatomic carbon chains

Metal-carbon nanoclusters for SERS

Photosensitive free-standing ultra-thin carbyne–gold films

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