Nanosecond-Laser Generation of Nanoparticles in Liquids: From Ablation through Bubble Dynamics to Nanoparticle Yield

Kudryashov, S. I.; Samokhvalov, A. A.; Nastulyavichus, Alena; Сараева, И. Н.; Mikhailovskii, Vladimir; Ионин, А. А.; Veiko, Vadim P.

doi:10.3390/ma12040562

Cited by 46 publications

(29 citation statements)

References 60 publications

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“…This can cause ablation on a solid surface, where vaporized species may form nanoparticles or microparticles when the solid is ablated. With the laser ablation method in liquid, nanoparticles with size smaller than 10 nm have been generated from various materials [14,15]. Moreover, it can cause the solid surface to melt, and the re-solidification of the molten surface can leave interesting patterns on the surface.…”

Section: Introductionmentioning

confidence: 99%

Femtosecond Laser-Induced Thermal Transport in Silicon with Liquid Cooling Bath

et al. 2019

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Nanostructured regular patterns on silicon surface are made by using femtosecond laser irradiations. This is a novel method that can modify the surface morphology of any large material in an easy, fast, and low-cost way. We irradiate a solid surface with a 400-nm double frequency beam from an 800-nm femtosecond laser, while the solid surface is submerged in a liquid or exposed in air. From the study of multiple-pulses and single-pulse irradiations on silicon, we find the morphologies of nanospikes and capillary waves to follow the same distribution and periodicity. Thermal transport near the solid surface plays an important role in the formation of patterns; a simulation was done to fully understand the mechanism of the pattern formation in single pulse irradiation. The theoretical models include a femtosecond laser pulse function, a two-temperature model (2-T model), and an estimation of interface thermal coupling. The evolution of lattice temperature over time will be calculated first without liquid cooling and then with liquid cooling, which has not been well considered in previous theoretical papers. The lifetime of the capillary wave is found to be longer than the solidification time of the molten silicon only when water cooling is introduced. This allows the capillary wave to be frozen and leaves interesting concentric rings on the silicon surface. The regular nanospikes generated on the silicon surface result from the overlapping capillary waves.

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Section: Introductionmentioning

confidence: 99%

Femtosecond Laser-Induced Thermal Transport in Silicon with Liquid Cooling Bath

et al. 2019

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“…The main process with the laser-target-liquid system can be summarized as following, when the laser is switched on, the microscopic dynamic action on the surface of the bulk target could go through three stages: plasma formation, cavitation bubbles expansion, and bubbles collapse with particles release (see Fig. 3 (a), (b) and (c) respectively) [22].…”

Section: Plasma Formation Cavitation Bubbles and Nanoparticles Formamentioning

confidence: 99%

Rare-earths doped-nanoparticles prepared by pulsed laser ablation in liquids

Castaing

Guo

et al. 2020

Ceramics International

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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“…[ 23 ] Moreover, there are known different opportunities for tuning down Si nanoparticle dimensions—down to a few nanometers—through variation of ultrashort laser pulsewidth, wavelength and fluence, repetition rate‐dependent fragmentation in laser plumes, described in previous related studies on laser‐induced ablative generation of Si nanoparticles in liquids and corresponding reviews. [ 24–32 ]…”

Section: Figurementioning

confidence: 99%

Multifunctional Sulfur‐Hyperdoped Silicon Nanoparticles with Engineered Mid‐Infrared Sulfur‐Impurity and Free‐Carrier Absorption

Nastulyavichus

Сараева

Rudenko

et al. 2020

Part & Part Syst Charact

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rather limited dangling-bond absorption of electromagnetic waves in amorphous nanosilicon, broadly variable free-carrier absorption (free-carrier concentration ≈10 17 cm −3 ) [4] in controllably doped silicon has recently brought another important modality to Si NPs, related to space-selective in situ anti-cancer hyperthermiabased therapies via near-and mid-infrared (IR) laser, or radiofrequency (RF) Joule heating. [4,6] However, to date strong Si-NP doping was realized only via minor introduction of gold, [7] since Si is rather immiscible material. [8] In contrast, n-hyperdoped Si was actively studied for the last decade as a material platform, supporting fabrication of mid-IR sensitizers for solar cells, [9] broadband active media for thin-film photovoltaics, [1] broad-band mid-IR nightvision and imaging devices for novel promising and emerging applications. The currently achieved strong (≈10 3 -10 4 cm −1 ) smooth [10][11][12][13][14] or band-engineered [15,16] mid-IR absorption in sulfur-(or selenium and tellurium [12] ) doped Si was suggested for raising solar-cell efficiency up to 49% through efficient harvesting of near-and mid-IR solar radiation. [17] Besides the donor-based band-to-band absorption, considerable free-carrier absorption via thermal ionization of shallow donor states was also reported in such Si nanoparticles (NPs), which are innovative promising light-harvesting components of thin-film solar cells and key-enabling biocompatible theranostic elements of infrared-laser and radiofrequency hyperthermia-based therapies of cancer cells in tumors and metastases, are significantly advanced in their near/mid-infrared band-to-band and free-carrier absorption via donor sulfur-hyperdoping during high-throughput facile femtosecond-laser ablative production in liquid carbon disulfide. High-resolution transmission electron microscopy and Raman microscopy reveal their mixed nanocrystalline/ amorphous structure, enabling the extraordinary sulfur content of a few atomic percents and very minor surface oxidation/carbonization characterized by energy-dispersive X-ray spectro scopy and X-ray photoelectron spectroscopy. A 200-nm thick layer of the nanoparticles exhibits near−mid-infrared absorbance, comparable to that of the initial 380-micron thick n-doped Si wafer (phosphordopant concentration ≈10 15 cm −3 ), with the corresponding extinction coefficient for the hyperdoped NPs being 4-7 orders higher over the broadband spectral range of 1-25 micrometers. Such ultimate, but potentially tunable mid-IR structured, multi-band absorption of various sulfur-impurity clusters and smooth free-carrier absorption are break through advances in mid-infrared (mid-IR) laser and radiofrequency (RF) hyperthermia-based therapies, as envisioned in the RF-heating tests, and in fabrication of higher-efficiency thin-film and bulk photovoltaic devices with ultra-broad (UV−mid-IR) spectral response.

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Nanosecond-Laser Generation of Nanoparticles in Liquids: From Ablation through Bubble Dynamics to Nanoparticle Yield

Cited by 46 publications

References 60 publications

Femtosecond Laser-Induced Thermal Transport in Silicon with Liquid Cooling Bath

Femtosecond Laser-Induced Thermal Transport in Silicon with Liquid Cooling Bath

Rare-earths doped-nanoparticles prepared by pulsed laser ablation in liquids

Multifunctional Sulfur‐Hyperdoped Silicon Nanoparticles with Engineered Mid‐Infrared Sulfur‐Impurity and Free‐Carrier Absorption

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