Superhydrophobic Surfaces Enabled by Femtosecond Fiber Laser-Written Nanostructures

Liu, Erin; Lee, Hyeong Jae; Lu, Xuejun

doi:10.3390/app10082678

Cited by 6 publications

(5 citation statements)

References 32 publications

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“…The SEM images show the formulation of a corallike surface structured with mushroom-like nano-protrusions on micro-cavities arranged in random alignments. These uniform/deterministic micro-cavities-oriented structures consisted of tiny cavities with dimensions in the micron to nano range that created an ultrafine porous structure [28]. Further studies show that these structures were reproducible and well controllable by adjusting the laser parameters.…”

Section: Influence Of Laser Texturing On Surface Morphologymentioning

confidence: 90%

Fabrication of superhydrophobic surfaces by laser surface texturing and autoxidation

Kumar

Verma

Bairwa

2022

J. Electrochem. Sci. Eng.

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The creation of superhydrophobic surfaces (SHS) has received exceptional thought from the entire research community due to its notable application in varied fields such as anti-icing, self-cleaning, drag reduction, anti-bacterial, and oil-water separation. The superhydrophobic (SH) conditions for a surface can be attained through the consolidation of a low surface energy surface with appropriate micro/nano-surface roughness through texturing. Motivated by the SH nature of lotus leaf and petal effect, microstructures have been prepared in this work on a metal surface by a fiber laser marking machine at 35 W. The textured surfaces with a different pitch to diameter (p/d) ratio (2.0-0.70) have been turned into hydrophobic and finally SH, after storing in an ambient environment for a few days due to oxide layer deposition on the textured surface. In this study, the maximum contact angle achieved by textured geometry after 30 days of auto-oxidation was 158.6 o. Further, test results showed that the fabricated surfaces have a high potential to maintain their SH nature even after the harsh condition of applications.

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Section: Influence Of Laser Texturing On Surface Morphologymentioning

confidence: 90%

Fabrication of superhydrophobic surfaces by laser surface texturing and autoxidation

Kumar

Verma

Bairwa

2022

J. Electrochem. Sci. Eng.

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“…Additionally, the precise processing of semiconductor materials has become extremely important in the manufacturing of the new generation of electronic devices nowadays. Thus, the generation of laser-induced periodic surface structures (LIPSS) on crystalline silicon (c-Si) can make solar cells surfaces hydrophobic [16]. The laser-induced formation of circular, crisscross, and irregular LIPSS [17,18], as well as twisted nanojet structures [19,20], has revealed their unique properties in enhanced filed microscopy [21] and the generation of antibacterial surfaces [22].…”

Section: Introductionmentioning

confidence: 99%

Modeling of Short-Pulse Laser Interactions with Monolithic and Porous Silicon Targets with an Atomistic–Continuum Approach

Grigoryeva,

Kutlubulatova,

Lukashenko

et al. 2023

Nanomaterials

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The acquisition of reliable knowledge about the mechanism of short laser pulse interactions with semiconductor materials is an important step for high-tech technologies towards the development of new electronic devices, the functionalization of material surfaces with predesigned optical properties, and the manufacturing of nanorobots (such as nanoparticles) for bio-medical applications. The laser-induced nanostructuring of semiconductors, however, is a complex phenomenon with several interplaying processes occurring on a wide spatial and temporal scale. In this work, we apply the atomistic–continuum approach for modeling the interaction of an fs-laser pulse with a semiconductor target, using monolithic crystalline silicon (c-Si) and porous silicon (Si). This model addresses the kinetics of non-equilibrium laser-induced phase transitions with atomic resolution via molecular dynamics, whereas the effect of the laser-generated free carriers (electron–hole pairs) is accounted for via the dynamics of their density and temperature. The combined model was applied to study the microscopic mechanism of phase transitions during the laser-induced melting and ablation of monolithic crystalline (c-Si) and porous Si targets in a vacuum. The melting thresholds for the monolithic and porous targets were found to be 0.32 J/cm2 and 0.29 J/cm2, respectively. The limited heat conduction mechanism and the absence of internal stress accumulation were found to be involved in the processes responsible for the lowering of the melting threshold in the porous target. The results of this modeling were validated by comparing the melting thresholds obtained in the simulations to the experimental values. A difference in the mechanisms of ablation of the c-Si and porous Si targets was considered. Based on the simulation results, a prediction regarding the mechanism of the laser-assisted production of Si nanoparticles with the desired properties is drawn.

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“…A. Y. Vorobyev et al [91] prepared superhydrophobic and self-cleaning multifunctional surfaces using femtosecond laser pulses. Research by Erin Liu et al [92] demonstrates that femtosecond fiber lasers can form layered structures on metal surfaces, demonstrating superhydrophobic, self-cleaning, and light-trapping properties. Sohail A. Jalil et al [93] investigated the surface structure of femtosecond laserinduced gold (Au) and its effect on hydrophobicity.…”

Section: Wetting Behaviormentioning

confidence: 99%

A Review of Effects of Femtosecond Laser Parameters on Metal Surface Properties

Sun

Liu

et al. 2022

Coatings

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As a laser technology, the femtosecond laser is used in biomedical fields due to its excellent performance—its ultrashort pulses, high instantaneous power, and high precision. As a surface treatment process, the femtosecond laser can prepare different shapes on metal surfaces to enhance the material’s properties, such as its wear resistance, wetting, biocompatibility, etc. Laser-induced periodic surface structures (LIPSSs) are a common phenomenon that can be observed on almost any material after irradiation by a linearly polarized laser. In this paper, the current research state of LIPSSs in the field of biomedicine is reviewed. The influence of laser parameters (such as laser energy, pulse number, polarization state, and pulse duration) on the generation of LIPSSs is discussed. In this paper, the applications of LIPSSs by femtosecond laser modification for various purposes, such as in functional surfaces, the control of surface wettability, the surface colonization of cells, and the improvement of tribological properties of surfaces, are reviewed.

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Superhydrophobic Surfaces Enabled by Femtosecond Fiber Laser-Written Nanostructures

Cited by 6 publications

References 32 publications

Fabrication of superhydrophobic surfaces by laser surface texturing and autoxidation

Fabrication of superhydrophobic surfaces by laser surface texturing and autoxidation

Modeling of Short-Pulse Laser Interactions with Monolithic and Porous Silicon Targets with an Atomistic–Continuum Approach

A Review of Effects of Femtosecond Laser Parameters on Metal Surface Properties

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