One‐Step Production of Organized Surface Architectures on Polymeric Materials by Direct Laser Interference Patterning

Lasagni, Andrés Fabían; Acevedo, Diego F.; Barbero, C.; Mücklich, Frank

doi:10.1002/adem.200600171

Cited by 74 publications

(57 citation statements)

References 19 publications

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“…Furthermore, some small structures can be formed around the textured pattern due to the laser beam diffraction at the mask geometry [71]. Other approach also using a stationary laser beam is the laser interference patterning, or direct laser interference patterning (DLIP) [70]. This technique involves the interference of two or more laser beams to obtain a periodic variation of light intensity on the irradiated area.…”

Section: Components Of a Laser Texturing Systemmentioning

confidence: 99%

Laser Surface Texturing of Polymers for Biomedical Applications

et al. 2018

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Polymers are materials widely used in biomedical science because of their biocompatibility, and good mechanical properties (which, in some cases, are similar to those of human tissues); however, these materials are, in general, chemically and biologically inert. Surface characteristics, such as topography (at the macro-, micro, and nano-scale), surface chemistry, surface energy, charge, or wettability are interrelated properties, and they cooperatively influence the biological performance of materials when used for biomedical applications. They regulate the biological response at the implant/tissue interface (e.g., influencing the cell adhesion, cell orientation, cell motility, etc.). Several surface processing techniques have been explored to modulate these properties for biomedical applications. Despite their potentials, these methods have limitations that prevent their applicability. In this regard, laser-based methods, in particular laser surface texturing (LST), can be an interesting alternative. Different works have showed the potentiality of this technique to control the surface properties of biomedical polymers and enhance their biological performance; however, more research is needed to obtain the desired biological response. This work provides a general overview of the basics and applications of LST for the surface modification of polymers currently used in the clinical practice (e.g., PEEK, UHMWPE, PP, etc.). The modification of roughness, wettability, and their impact on the biological response is addressed to offer new insights on the surface modification of biomedical polymers.

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Section: Components Of a Laser Texturing Systemmentioning

confidence: 99%

Laser Surface Texturing of Polymers for Biomedical Applications

et al. 2018

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“…Taking the plane wave approximation, the total field (E) of an interference pattern can be calculated by adding all the individual laser beams: [14,18,19] …”

Section: Resultsmentioning

confidence: 99%

Fabrication of Periodic Microstructures in Pentaerythritol Triacrylate Through Femtosecond Laser Interference Two‐Photon Polymerization

et al. 2009

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“…A study on the light trapping for flexible organic devices has been undertaken; 3,4 and the correlation between the OPV performance and the period of patterned structure is developed by Yu et al [14][15][16] However that with the height of patterned structure is still unclear. In this study, we structure PET substrates with direct laser interference patterning (DLIP), which is a powerful and scalable one step technique for patterning polymer 17,18 and thin metal films 19 without any chemical treatment. Flexible small molecule organic solar cells 20 are constructed on the line-patterned PET substrates, and the influence of the line-period on the enhancement of the device absorption and performance is studied.…”

mentioning

confidence: 99%

Flexible, light trapping substrates for organic photovoltaics

Park¹,

Berger

Tang³

et al. 2016

Applied Physics Letters

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Micro-structured organic photovoltaic (OPV) devices on polyethylene terephthalate substrates are produced using direct laser interference patterning (DLIP). The performance of organic solar cells on these substrates is improved by a factor of 1.16, and a power conversion efficiency of 7.70% is achieved. We show that a shorter spatial period of the pattern allows for a stronger light trapping effect in solar cell, as it leads to a longer light path. Moreover, since the patterned structures are located on the outside of the fully encapsulated OPV devices, there are no problems with the roughness induced shunts.

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One‐Step Production of Organized Surface Architectures on Polymeric Materials by Direct Laser Interference Patterning

Cited by 74 publications

References 19 publications

Laser Surface Texturing of Polymers for Biomedical Applications

Laser Surface Texturing of Polymers for Biomedical Applications

Fabrication of Periodic Microstructures in Pentaerythritol Triacrylate Through Femtosecond Laser Interference Two‐Photon Polymerization

Flexible, light trapping substrates for organic photovoltaics

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