Study on factors affecting wetting durability of high current ion-beam treated aluminum surfaces

Lee, Chanyoung; Kim, Bom-Sok; Choi, Hyojeong; Lee, Jas-Sang

doi:10.3938/jkps.63.1399

Cited by 5 publications

(2 citation statements)

References 7 publications

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“…The controlled modification of COP surface wettability is highly desirable for the fabrication of COP-based microfluidic devices. Different techniques can be employed to modify polymer surface wettability which include wet-chemical etching [ 5 ], corona discharges [ 6 ], plasma treatment [ 7 , 8 ], ion beam treatment [ 9 , 10 ], electron beam irradiation [ 11 ], and laser irradiation. Compared with other methods, laser irradiation, being a fast and clean process, has a number of unique advantages.…”

Section: Introductionmentioning

confidence: 99%

Surface Wettability Modification of Cyclic Olefin Polymer by Direct Femtosecond Laser Irradiation

Wang

Lam

2015

Nanomaterials

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The effect of laser irradiation on surface wettability of cyclic olefin polymer (COP) was investigated. Under different laser parameters, a superhydrophilic or a superhydrophobic COP surface with a water contact angle (WCA) of almost 0° or 163°, respectively, could be achieved by direct femtosecond laser irradiation. The laser power deposition rate (PDR) was found to be a key factor on the wettability of the laser-treated COP surface. The surface roughness and surface chemistry of the laser-irradiated samples were characterized by surface profilometer and X-ray photoelectron spectroscopy, respectively; they were found to be responsible for the changes of the laser-induced surface wettability. The mechanisms involved in the laser surface wettability modification process were discussed.

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Section: Introductionmentioning

confidence: 99%

Surface Wettability Modification of Cyclic Olefin Polymer by Direct Femtosecond Laser Irradiation

Wang

Lam

2015

Nanomaterials

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“…Different techniques can be employed to modify polymer surface wettability, which include wet-chemical etching [84], corona discharges [85], plasma treatment [86,87], ion beam treatment [88,89], electron beam irradiation [90], and laser irradiation method. Compared with other methods, laser irradiation, being a fast and clean process, has a number of unique advantages.…”

Section: Surface Wettability Modification 251 Backgroundmentioning

confidence: 99%

Femtosecond laser interaction with polystyrene and its wettability characteristics

Wang¹

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Ultrashort pulsed laser polymer processing has attracted much interest recently.Ultrashort pulsed laser has an advantage in the processing of transparent and dielectric materials due to its high intensity and short pulse duration. Many investigations have been conducted in this area. However, there are still important issues yet to be clarified and resolved. These include a rigorous and quantitative investigation on the nonlinear absorption of laser power by the irradiated substrate, the associated thermal effects and heat conduction on the transparent materials (e.g. a transparent polymer). In addition, it is known that a short pulsed laser could modify the surface wettability of a polymer, but the linkage of the modification to nonlinear absorption has never been correlated. Polystyrene (PS) is a versatile polymer with many applications; many of these applications can take advantage of the different wettability if available. As PS is transparent to the wavelength of femtosecond laser employed for this investigation, PS is a natural choice for the current investigation.In the current study, the nonlinear absorption behavior of thick transparent PS samples were theoretically analyzed and experimentally investigated by applying the z scan technique. The thick PS sample was treated as a stack of thin samples and the nonlinear absorption behavior at different laser powers were investigated. The nonlinear absorption coefficient of PS was quantified to be 0.000695 m/W. The absorbed laser energy by the PS substrate will subsequently be converted to heat energy, and be conducted away. This femtosecond laser induced thermal effects

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Femtosecond laser-induced surface wettability modification of polystyrene surface

Wang

Lam

2016

Sci. China Phys. Mech. Astron.

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Study on factors affecting wetting durability of high current ion-beam treated aluminum surfaces

Cited by 5 publications

References 7 publications

Surface Wettability Modification of Cyclic Olefin Polymer by Direct Femtosecond Laser Irradiation

Surface Wettability Modification of Cyclic Olefin Polymer by Direct Femtosecond Laser Irradiation

Femtosecond laser interaction with polystyrene and its wettability characteristics

Femtosecond laser-induced surface wettability modification of polystyrene surface

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