Device fabrication on curvilinear two-dimensional surfaces using polymer probes

Becerra-Mora, Nathalie; Rajasekaran, Pradeep Ramiah; Voss, Kay‐Obbe; Kollipara, Vijaya Kumar; Kohli, Punit

doi:10.1016/j.polymer.2021.123521

Cited by 2 publications

(11 citation statements)

References 74 publications

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“…The simultaneous pattern editing experiments were performed on an inverted microscope equipped with a computer-controlled XYZ stage as outlined in previous reports (Figure and the Supporting Information). , PLiSED was accomplished by bringing the PLE probes containing two types of fluorescent molecules (concentrations in the micromolar range) in close proximity with a substrate coated with a third fluorescent dye. The rapid diffusion of molecules from the nanoporous PAAM probe matrix to the substrate (writing or deposition step) along with the simultaneous diffusion of the solvated molecules adsorbed on the substrate into the PLE probe matrix (erasing step) resulted in PLiSED.…”

Section: Resultsmentioning

confidence: 99%

“…The dimensions of the patterns were 9.7 ± 0.9 μm (quinine erasing), 15.0 ± 1.0 μm (fluorescein deposition), and 13.6 ± 1.8 μm (rhodamine deposition), respectively (Table S2). The differences in the deposited patterned line widths were attributed to differences in the probe–surface contact area and the physical and chemical characteristics of the fluorescent dyes involved in the molecular editing process . In general, a larger probe–surface contact area results in a wider pattern feature size.…”

Section: Resultsmentioning

confidence: 99%

“…Removing molecules from deposited patterns is important for correction and post modification in real lithographic work. Despite its relevance, studies involving error rectification of microscale patterns are scarce in the literature. − PLiSED is also expected to find applications in areas including energy harvesting, and self-powered and wearable flexible sensors. − …”

Section: Introductionmentioning

confidence: 99%

“…In general, the removal of molecules from a surface using solution-based probe erasing is a multiple-step process. In the simplest terms, it requires the (1) delivery of an etching and/or a solvating media on a surface; (2) solvation of the targeted species adsorbed on a surface; and (3) transport of the solvated molecules into the probe or away from the erased spot. − Multiple factors are involved in the removal of molecules from a substrate by a lithographic probe. Some factors are related to the physicochemical characteristics of the material of interest, whereas other factors are associated with the characteristics of the lithographic probe.…”

Section: Introductionmentioning

confidence: 99%

“…In our previous work, PLE probes were used for the deposition of fluorescent dyes and removal of metal coatings from planar and nonplanar substrates. − Pyramidal polyacrylamide probes loaded with copper and silver etchants were used to make electrodes by selectively removing silver or copper from a flat substrate; the electrodes were then used to fabricate a microphotodetector. , In a similar fashion, conical probes composed of agarose were used to erase fluorescent patterns with an erasing areal speed ( R edit ) of ≈785 μm 2 /s and editing resolution of ∼ 10 μm . For these studies, two steps were required: (a) erasing or removal of a fluorescent dye (rhodamine B) using a swollen probe and (b) writing or deposition of fluorescein, thereby completing the microscale editing.…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous Writing and Erasing Using Probe Lithography Synchronized Erasing and Deposition (PLiSED)

et al. 2022

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Simultaneous writing and erasing of two and three molecules in one single step at the microscale using Polymeric Lithography Editor (PLE) probes is demonstrated. Simultaneous writing and erasing of three molecules was accomplished by rastering a nanoporous probe that was loaded with rhodamine B and fluorescein over a quinine-coated glass substrate. The solvated quinine molecules were erased and transported into the probe matrix, whereas both rhodamine and fluorescein molecules were simultaneously deposited and aligned with the path of the erased quinine on the substrate. The simultaneous writing and erasing of molecules is referred to as PLiSED. The writing and erasing speed can be easily tuned by adjusting the probe speed to as large as 10,000 μm 2 /s. The microscale patterns on the orders of square millimeter area were fabricated by erasing fluorescein with an efficiency (η e ) > 95% while simultaneously depositing rhodamine molecules at the erased spots. The roles of the probe porosity, transport medium, and kinetics of solvation for editing were also investigated�the presence of a transport medium at the probe−substrate interface is required for the transport of the molecules into and out of the probe. The physical and mechanical properties of the polymeric probes influenced molecular editing. Young's modulus values of the hydrated hydrogels composed of varying monomer/cross-linker ratios were estimated using atomic force microscopy. Probes with the highest observed erasing capacity were used for further experiments to investigate the effects of relative humidity and erasing time on editing. Careful control over experimental conditions provided high-quality editing of microscale patterns at high editing speed. Combining erasing and deposition of multiple molecules in one single step offers a unique opportunity to significantly improve the efficiency and the accuracy of lithographic editing at the microscale. PLiSED enables rapid on-site lithographic rectification and has considerable application values in high-quality lithography and solid surface modification.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Simultaneous Writing and Erasing Using Probe Lithography Synchronized Erasing and Deposition (PLiSED)

et al. 2022

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Diffusiophoretically Mediated Nanopatterning by Solvent Nanodroplets on Polystyrene Surfaces

Dong,

Chen,

et al. 2024

Langmuir

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Dissolution is a ubiquitous process in nature and industry. However, due to technical difficulties, the detailed dissolution process at the nanoscale has seldom been captured experimentally. In this study, we investigated the dissolution dynamics in the confinement of toluene surface nanodroplets on polystyrene (PS) thin films in oversaturated toluene/water mixture solutions. This was achieved by adjusting the immersion durations from several minutes to 9 h. Dissolution takes place upon the deposition of nanodroplets on the PS surfaces, leading to the formation of surface nanostructures. Interestingly, we found that the induced nanostructures underwent complex morphological changes, from complex nanocraters with central bulges and/or multiple rims to simple nanocraters. We speculate that diffusiophoresis plays a key role in the formation of the complex nanocraters, as it facilitates the transportation of dissolved PS molecules inside the nanodroplets. We believe this finding not only enhances our understanding of dissolution dynamics at the nanoscale but also holds promise for applications in dissolution-based nanopatterning.

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Device fabrication on curvilinear two-dimensional surfaces using polymer probes

Cited by 2 publications

References 74 publications

Simultaneous Writing and Erasing Using Probe Lithography Synchronized Erasing and Deposition (PLiSED)

Simultaneous Writing and Erasing Using Probe Lithography Synchronized Erasing and Deposition (PLiSED)

Diffusiophoretically Mediated Nanopatterning by Solvent Nanodroplets on Polystyrene Surfaces

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