Dynamic contact line lithography: Template-less complex Meso-patterning with polystyrene and poly(methyl methacrylate)
| Autor: | Partho Sarathi Gooh Pattader, Kaniska Murmu, Krishna Pradeep Burgula |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Materials science 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Poly(methyl methacrylate) 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Biomaterials Contact angle chemistry.chemical_compound Colloid and Surface Chemistry chemistry Chemical engineering visual_art visual_art.visual_art_medium Deposition (phase transition) Polystyrene Wetting Methyl methacrylate 0210 nano-technology Lithography |
| Zdroj: | Journal of Colloid and Interface Science. 601:156-166 |
| ISSN: | 0021-9797 |
| Popis: | Hypothesis Micro/nanopatterning on a 2D surface is apt for cutting-edge miniaturization technology, which directly or indirectly requires high-end expensive lithographic tools. The evaporative deposition at the receding contact-line of a polymer solution, termed as Dynamic Contact Line Lithography (DCLL), can be a potential inexpensive technique for template-less meso-patterning if the deposition patterns from DCLL can be predicted a priori. Experiments A deposition map (morphological phase diagram) from the myriads of patterns is constructed in terms of contact-line velocity and the polymer concentration. Specifically, two combinations: polystyrene (PS)/cyclohexane and poly (methyl methacrylate) (PMMA)/toluene are used to show the generic nature of the phase diagrams. The surface wettability of Si (water contact angle, CA ~15°) is tuned from CA ~35° to ~98° by patterning with DCLL. Findings Directed by the phase diagrams, fabrication of a complex rectangular cross-pattern of PS and PMMA micro-threads with a periodicity of ~65 μm and ~50 μm respectively on a Si surface is demonstrated to establish the robustness and potential of the DCLL and predictive phase diagram. |
| Databáze: | OpenAIRE |
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