A study of AFM-based scratch process on polycarbonate surface and grating application

Choi, Chul Hyun; Lee, Dong Jin; Sung, Jong Hwan; Lee, Min Woo; Lee, Seung‐Gol; Park, Se-Geun; Lee, El-Hang; Beom‐Hoan, O

doi:10.1016/j.apsusc.2010.06.025

Cited by 33 publications

(15 citation statements)

References 14 publications

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“…A diamond‐coated Si tip was utilized by Choi et al62 to scratch grating patterns on PC surfaces with a scratch speed of 10 μm/s under contact mode. The movement of the vertical scanner of the sample stage could be independently controlled.…”

Section: Materials Removing By Mechanical Forcesmentioning

confidence: 99%

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Removing Material Using Atomic Force Microscopy with Single‐ and Multiple‐Tip Sources

Tseng

2011

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Atomic force microscopy (AFM) has been an effective material removing tool for fabricating various nanostructures because of its sub-nanometer precision and simplicity in operation. AFM material removing techniques have evolved from a solely mechanical process to one in which the tip can be loaded by additional energy sources, such as thermal, electric, or chemical, to enhance its fabrication abilities. In this paper, these material removing techniques are reviewed with an emphasis on their capabilities and recent progress. The recent hardware and software developments are first presented to provide a general view on the current status of the technology to be assessed. Following an overview of the feasibility and effectiveness of using mechanical scratching for removing various types of soft and hard materials, the processes of a wide range of approaches using multiple tip sources are then assessed with a focus on their principles, versatilities, and potentials for future applications.

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Section: Materials Removing By Mechanical Forcesmentioning

confidence: 99%

Section: Materials Removing By Mechanical Forcesmentioning

confidence: 99%

Removing Material Using Atomic Force Microscopy with Single‐ and Multiple‐Tip Sources

Tseng

2011

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“…Peptoid nanomembranes exhibit a variety of unique properties similar to cell membranes, such as the ability to self-repair. To demonstrate that, a widely-used AFM lithography-based mechanical scratch method [40] was used to create defects along both x-and y-directions of the peptoid nanomembrane (Fig. 5c).…”

Section: Self-repair Of Peptoid Nanomembranementioning

confidence: 99%

Peptoid-based hierarchically-structured biomimetic nanomaterials: Synthesis, characterization and applications

et al. 2020

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Peptoids (or poly-N-substituted glycines) are a promising class of bioinspired sequence-defined polymers due to their highly efficient synthesis, high chemical stability, enzyme hydrolysis resistance, and biocompatibility. By tuning the side chain chemistry of peptoids, it allows for precise control over sequences and achieving a large side-chain diversity. Due to these unique features, in the last several years, many amphiphilic peptoids were designed as highly tunable building blocks for the preparation of biomimetic nanomaterials with well-defined hierarchical structures and desired functionalities. Herein, we provide an overview of the recent achievements in this area by dividing them into the following three aspects. First, mica-and silica-templated peptoid selfassembly are summarized. The presence of inorganic substrates provides the guarantee of investigating their selfassembly mechanisms and interactions between peptoids and substrates using nanoscale characterization techniques, particularly in situ atomic force microscopy (AFM) and AFMbased dynamic force spectroscopy (AFM-DFS). Second, solution-phase self-assembly of peptoids into nanotubes and nanosheets is presented, as well as their self-repair properties. Third, the applications of peptoid-based nanomaterials are outlined, including the construction of catalytic nanomaterials as a template and cytosolic delivery as cargoes.

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“…For example, Raman signal amplification occurs in shell-coated nanoparticles for surface-enhanced Raman scattering (SERS) [1]. In [2], a 500 nm period grating is used to guide 632.8 nm light on a polycarbonate substrate. In addition, a grating with varying sub-micrometre periods could be used as a photonic crystal filter with narrowband reflectivity [3].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of periodic nanostructures using dynamic plowing lithography with the tip of an atomic force microscope

Yan

Geng

et al. 2018

Applied Surface Science

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The fabrication of periodic nanostructures with a fine control of their dimensions is performed on poly(methyl methacrylate) (PMMA) thin films using an atomic force microscope technique called dynamic plowing lithography (DPL). Different scratching directions are investigated first when generating single grooves with DPL. In particular, the depth, the width and the periodicity of the machined grooves as well the height of the pileup , formed on the side of the grooves, are assessed. It was found that these features are not significantly affected by the scratching direction, except when processing took place in a direction away from the cantilever probe and parallel to its main axis. For a given scratching direction, arrays of regular grooves are then obtained by controlling the feed, i.e. the distance between two machining lines. A scan-scratch tip trace is also used to reduce processing time and tip wear. However, irregular patterns are created when combining two layers oriented at different angles and where each layer defines an array of grooves. Thus, a "combination writing" method was implemented to fabricate arrays of grooves with a well-defined wavelength of 30 nm, which was twice the feed value utilized. Checkerboard, diamond-shaped, and hexagonal nanodots were also fabricated. These were obtained by using the combination writing method and 2 by varying the orientation and the number of layers. The density of the nanodots achieved could be as high as 1.9×10 9 nanodots per mm 2 .

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A study of AFM-based scratch process on polycarbonate surface and grating application

Cited by 33 publications

References 14 publications

Removing Material Using Atomic Force Microscopy with Single‐ and Multiple‐Tip Sources

Removing Material Using Atomic Force Microscopy with Single‐ and Multiple‐Tip Sources

Peptoid-based hierarchically-structured biomimetic nanomaterials: Synthesis, characterization and applications

Fabrication of periodic nanostructures using dynamic plowing lithography with the tip of an atomic force microscope

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