Simultaneous nanopatterning and reduction of graphene oxide by femtosecond laser pulses

Kasischke, Maren; Maragkaki, Stella; Volz, Sergej; Ostendorf, Andreas; Gurevich, Evgeny L.

doi:10.1016/j.apsusc.2018.03.086

Cited by 58 publications

(31 citation statements)

References 40 publications

(61 reference statements)

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“…In the experiment, when the thickness of the GO film is less than 50 nm, both the repeatability and regularity of the rGO-LIPSS greatly decrease, which may be due to the decrease in both TE-SP wave generation and the coupling efficiency at the reduced thickness. This may be the reason for the irregular LIPSS formation on other few-layered 2D materials 47,48 . Third, TE-SP wave excitation occurs in the transient nonequilibrium state of the material.…”

Section: Simulation Analysis Of Plasmonic Formation On Graphene Oxidementioning

confidence: 99%

High-speed femtosecond laser plasmonic lithography and reduction of graphene oxide for anisotropic photoresponse

et al. 2020

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Micro/nanoprocessing of graphene surfaces has attracted significant interest for both science and applications due to its effective modulation of material properties, which, however, is usually restricted by the disadvantages of the current fabrication methods. Here, by exploiting cylindrical focusing of a femtosecond laser on graphene oxide (GO) films, we successfully produce uniform subwavelength grating structures at high speed along with a simultaneous in situ photoreduction process. Strikingly, the well-defined structures feature orientations parallel to the laser polarization and significant robustness against distinct perturbations. The proposed model and simulations reveal that the structure formation is based on the transverse electric (TE) surface plasmons triggered by the gradient reduction of the GO film from its surface to the interior, which eventually results in interference intensity fringes and spatially periodic interactions. Further experiments prove that such a regular structured surface can cause enhanced optical absorption (>20%) and an anisotropic photoresponse (~0.46 ratio) for the reduced GO film. Our work not only provides new insights into understanding the laser-GO interaction but also lays a solid foundation for practical usage of femtosecond laser plasmonic lithography, with the prospect of expansion to other two-dimensional materials for novel device applications.

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Section: Simulation Analysis Of Plasmonic Formation On Graphene Oxidementioning

confidence: 99%

High-speed femtosecond laser plasmonic lithography and reduction of graphene oxide for anisotropic photoresponse

et al. 2020

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“…During the laser processing, the surface microstructures are fabricated directly by controlling the motion Laser-induced self-organized surface structures provide a fast, precise, and low-cost tool for surface microstructuring [17]. The regular self-organized surface structures can have the applications in surface engineering and treatment, notably in tribology, wettability, mechanics, marking, and counterfeiting [18][19][20][21]. A femtosecond laser could induce many types of self-organized micro/nanoscale surface structures on almost all solids [17].…”

Section: Methodsmentioning

confidence: 99%

Biomimetic Anti-Adhesive Surface Microstructures on Electrosurgical Blade Fabricated by Long-Pulse Laser Inspired by Pangolin Scales

Yang

Liu

et al. 2019

Micromachines

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The electrosurgical blade is the most common invasive surgical instrument in a cutting and hemostasis process; however, the blade easily leads to the adhesion of overheated soft tissues on the blades and induces a potential danger for the patients. To minimize the adhesive tissues, we proposed the one-step surface texturing method to fabricate anti-adhesive biomimetic scales on stainless steel 316L rapidly based on the self-organized surface microstructures induced by the long-pulse fiber laser, which was inspired by the excellent performances of anti-adhesion and anti-friction in the pangolin scales. The optimal formation parameters, chemical components, and crystal structures of the laser-induced self-organized surface microstructures were investigated in the experiments. Moreover, the underlying formation mechanism was revealed. The electrosurgical blades with biomimetic scales have hydrophobicity and a smaller frictional coefficient, which effectively reduced the adhesion of soft tissue.

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“…Laser-induced periodic surface structures (LIPSS), first observed by Birnbaum on semiconductor surfaces [ 1 ], can be found on different materials, such as metals, polymers [ 2 ], graphene [ 3 , 4 ], and wide-band gap dielectrics [ 5 , 6 , 7 ]. Although this phenomenon is nearly as old as laser material processing, its mechanisms are still under debate in the scientific community.…”

Section: Introductionmentioning

confidence: 99%

Three-Step Description of Single-Pulse Formation of Laser-Induced Periodic Surface Structures on Metals

2020

Self Cite

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Two different scenarios are usually invoked in the formation of femtosecond Laser-Induced Periodic Surface Structures (LIPSS), either “self-organization” mechanisms or a purely “plasmonic” approach. In this paper, a three-step model of formation of single-laser-shot LIPSS is summarized. It is based on the periodic perturbation of the electronic temperature followed by an amplification, for given spatial periods, of the modulation in the lattice temperature and a final possible relocation by hydrodynamic instabilities. An analytical theory of the evolution of the temperature inhomogeneities is reported and supported by numerical calculations on the examples of three different metals: Al, Au, and Mo. The criteria of the possibility of hydrodynamic instabilities are also discussed.

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Simultaneous nanopatterning and reduction of graphene oxide by femtosecond laser pulses

Cited by 58 publications

References 40 publications

High-speed femtosecond laser plasmonic lithography and reduction of graphene oxide for anisotropic photoresponse

High-speed femtosecond laser plasmonic lithography and reduction of graphene oxide for anisotropic photoresponse

Biomimetic Anti-Adhesive Surface Microstructures on Electrosurgical Blade Fabricated by Long-Pulse Laser Inspired by Pangolin Scales

Three-Step Description of Single-Pulse Formation of Laser-Induced Periodic Surface Structures on Metals

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