Removal of micrometer size particles from surfaces using laser-induced thermocapillary flow: Experimental results

Иванова, Н. Л.; Starov, Victor; Trybała, Anna; Flyagin, V. M.

doi:10.1016/j.jcis.2016.04.001

Cited by 17 publications

(8 citation statements)

References 15 publications

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“…Further, thermocapillary manipulation of liquid droplets has been previously been observed direct the motion of particles contained within the droplets. This has been explored with LSA to either direct the deposition or the removal of particles on a target substrate. Similarly, unwanted thermocapillary flow has led to the migration of nanoparticles in inks undergoing laser sintering .…”

Section: Introductionmentioning

confidence: 99%

Thermocapillary approaches to the deliberate patterning of polymers

Singer

2017

J Polym Sci B Polym Phys

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The phenomenon of thermocapillarity, the response of fluids to thermal gradients due to thermal alteration of their surface tension, was first reported over a century ago. Since then, research has focused generally on either the fundamentals or mitigation of this effect during the processing of materials. Only in the past two decades has the deliberate use of thermocapillary forces for the patterning of polymers been actively pursued, either for the ordering of internal structure or the introduction of topographic features. This review seeks to highlight this work and to identify directions for further investigation. In particular, while thermocapillary forces are often inextricably bound to other mechanisms, there are emerging directions in the deliberate coupling of forces to improve the capabilities of each mechanism. Further, the applications of thermocapillary patterning to polymer-nanoparticle composites has recently provided another promising route to active architectures.

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Section: Introductionmentioning

confidence: 99%

Thermocapillary approaches to the deliberate patterning of polymers

Singer

2017

J Polym Sci B Polym Phys

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“…The study [28,29] demonstrated the rupture of hexadecane layer (∼1 mm thick) on light-absorbing substrates induced by a laser knife (λ = 1.5 µm, length of the beam ∼1 cm, P = 500 mW) and subsequent transfer of liquid (i.e., receding of the three-phase contact line) in front of slow displacing laser line along the substrate, Figure 3a. This mechanism was shown to be effective for cleaning the surfaces from particulate impurities.…”

Section: Light-induced Rupture Of Thin Films and The Control Of The C...mentioning

confidence: 99%

“…Today, optical radiation (light) is widely used as a high-precision and efficient tool for controlling the fluid flow, the shape of the liquid-liquid or liquid-air interfaces, and manipulating small objects suspended in the bulk liquid phase or located on the interfaces. Using light makes it possible to solve a wide range of problems in various applications, including biological research [1][2][3][4], liquid diagnostics [5][6][7][8][9][10][11][12][13][14][15], non-destructive evaluation of solids [16][17][18][19][20], methods for studying properties of soft interfaces [21][22][23][24], electronic industry [25][26][27][28][29][30][31], technologies of tunable and biomimetic optics [8,[32][33][34], image recording systems [35][36][37][38], and non-linear optics [39,40].…”

Section: Introductionmentioning

confidence: 99%

Interfacial Flows and Interfacial Shape Modulation Controlled by the Thermal Action of Light Energy

Иванова

2022

Colloids and Interfaces

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The review covers the research on thermocapillary convection caused by the thermal action of laser radiation in single-layer and bilayer liquid systems of capillary thickness. The advantages of using optical radiation are the instantaneous delivery of thermal energy to a place on demand (a bulk phase, interfaces); low radiation power required; concentrating heat flux on a spot of a few micrometers; the production of arbitrary spatial distributions of radiation intensity; and, as a result, corresponding thermal fields at a liquid interface and their fast reconfiguration. Thermocapillary stresses at the liquid interfaces lead to the transfer of the liquid and a change in the shape of the interface, in accordance with the distribution of the light-induced thermal field. Studies concerned with the methods of non-destructive testing of liquid media and solids, which are based on a photothermocapillary signal emitted by a laser-induced concave deformation of a thin layer, are considered. Features of thermocapillary deformation of a liquid–air interface caused by local heating of thin and thick (exceeding the capillary length) layers are demonstrated. A part of the review addresses the results of the study of thermocapillary rupture of films in the heating zone and the application of this effect in semiconductor electronics and high-resolution lithography. The works on the light-induced thermocapillary effect in bilayer (multilayer) liquid systems are analyzed, including early works on image recording liquid layer systems, liquid IR transducers, and nonlinear optical media.

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“…The control of thermally induced and/or concentration-induced motion and the dynamical operation of transport processes in the volume of a liquid with a free surface or in multicomponent systems with interfaces are crucial for the development of new innovative approaches in material engineering and various smart technologies. These include coating technologies connected with obtaining coversheets with given functional characteristics [4,[9][10][11], methods applied upon surface purification [5,12,13], bioengineering and medical technologies, including microfluidic sorting [14,15], targeted drug delivery [16] and local elevation/reduction of components in fluid solutions [2,17], as well as various approaches directed towards the enhancement of heat transfer characteristics in electronic devices [18].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Thermocapillary Convection with Evaporation Induced by Boundary Heating

Goncharova,

Bekezhanova

2024

FDMP

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The dynamics of a bilayer system filling a rectangular cuvette subjected to external heating is studied. The influence of two types of thermal exposure on the flow pattern and on the dynamic contact angle is analyzed. In particular, the cases of local heating from below and distributed thermal load from the lateral walls are considered. The simulation is carried out within the frame of a two-sided evaporative convection model based on the Boussinesq approximation. A benzine-air system is considered as reference system. The variation in time of the contact angle is described for both heating modes. Under lateral heating, near-wall boundary layers emerge together with strong convection, whereas the local thermal load from the lower wall results in the formation of multicellular motion in the entire volume of the fluids and the appearance of transition regimes followed by a steady-state mode. The results of the present study can aid the design of equipment for thermal coating or drying and the development of methods for the formation of patterns with required structure and morphology.

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Removal of micrometer size particles from surfaces using laser-induced thermocapillary flow: Experimental results

Cited by 17 publications

References 15 publications

Thermocapillary approaches to the deliberate patterning of polymers

Thermocapillary approaches to the deliberate patterning of polymers

Interfacial Flows and Interfacial Shape Modulation Controlled by the Thermal Action of Light Energy

Numerical Simulation of Thermocapillary Convection with Evaporation Induced by Boundary Heating

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