Microstructure formation in a thick polymer by electrostatic-induced lithography

Liu, G; Yu, Weixing; Li, H; Gao, Jianfeng; Flynn, David; Kay, Robert W.; Cargill, S.; Tonry, Catherine; Patel, Mayur; Bailey, Christopher; Desmulliez, Marc Phillipe Yves

doi:10.1088/0960-1317/23/3/035018

Cited by 13 publications

(15 citation statements)

References 30 publications

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“…Polymer patterning by instability under an electric field is a very common industrial‐friendly process 167a. Polymeric organo‐rods have been made by this process and have shown hydrophobicity and enhanced adhesion, mimicking the nanohairs of gecko.…”

Section: Surface Modification Through Patterningmentioning

confidence: 99%

“…Polymeric organo‐rods have been made by this process and have shown hydrophobicity and enhanced adhesion, mimicking the nanohairs of gecko. [167b] Polymeric microlens can also be fabricated for optical devices . The resolution of the patterns obtained with electric‐field instability is limited due to the dielectric breakdown 167a,186.…”

Section: Surface Modification Through Patterningmentioning

confidence: 99%

“…[167b] Polymeric microlens can also be fabricated for optical devices . The resolution of the patterns obtained with electric‐field instability is limited due to the dielectric breakdown 167a,186. The increase in surface area obtained by patterning can be used to facilitate the charged based data storage.…”

Section: Surface Modification Through Patterningmentioning

confidence: 99%

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Surface Modification of Polymers: Methods and Applications

Nemani

Annavarapu

Mohammadian

et al. 2018

Adv Materials Inter

276

161

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Low cost, controlled crystallinity, chemical, and mechanical stability enable application of polymers in energy, water, electronics, and biomedical industries. Recent studies have shown that tailoring surface properties of polymers impacts their durability and functionality in these applications. However, the functionality and performance of polymer‐based devices and systems are greatly affected by the modification method and the process parameters, highlighting the need for understanding these methods and their mechanisms of operation in detail. The selection of the modification method invariably decides the properties enhanced in the polymer. In this review, various polymer surface modification treatments are discussed. These methods are categorized into physical, chemical, thermal, and optical ways, while illustrating their advantages and disadvantages. This review also explores the surface modification of polymers by patterning which encompasses one or more surface treatment methods. An application‐oriented study is presented discussing the relative importance of a method pertaining to a specific field of end‐application.

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Section: Surface Modification Through Patterningmentioning

confidence: 99%

Section: Surface Modification Through Patterningmentioning

confidence: 99%

See 1 more Smart Citation

Surface Modification of Polymers: Methods and Applications

Nemani

Annavarapu

Mohammadian

et al. 2018

Adv Materials Inter

276

161

View full text Add to dashboard Cite

show abstract

“…However, up to now most of the reported EISF process adopted the completely conductive template (CCT) as the top electrode, that is, the patterned template consists of a conductive backboard and conductive protrusions (Fig. B(i)), which is usually made of metal, indium tin oxide (ITO), or conductive silicon . In this case, the electric breakdown is easy to happen due to the leaky current flowing from one electrode to the other via the dielectric polymer especially for a large electric field, leading to a failed formation, which is easy to be observed in the experiments and is seldom mentioned in the published literatures.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the role of template features on the electrically induced structure formation (EISF) for a faithful duplication

et al. 2017

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Electrically induced structure formation, as a physical approach to fabricate micro/nanostructures, has attracted much attention because of the simple process, low-cost, high-efficiency, and wide applications on electronics, microfluidics, and so forth. Hitherto, the influence of some process parameters, such as voltage, air gap, film thickness, polymer properties, on the polymeric behavior, and the structure formation has been explored, neglecting the effects of the template features, which affect the polymer deformation. Especially for the conductive protrusions directly contacting the polymer, the phenomenon of electric breakdown may occur, leading to a failure of structure formation. The limitation of the research on the template features triggers the necessity to study its influence for a faithful deformation. In this paper, three types of patterned template are studied based on the electric field at the air-polymer interface, consisting of completely conductive template, partially conductive template, and dielectric template. Comprehensive consideration of the electric intensity for a sufficient driving pressure and the leaky current for preventing damaging the polymer, some guiding opinions on the template material and geometry can be provided to design the patterned template for the electrically induced structure formation process with a purpose for a faithful structure.

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“…Although the direct diamond turning process is a one step process, due to process difficulty and expensive tooling, the fabrication process cost could be in the order of USD 100 -1000 /mm 2 . Presently, inkjet printing [29] and electrostatic-induced lithography [30] have been explored for direct fabrication of polymer-based shape controlled lenses. The large dead space between lenslets could be an issue in reducing the optical efficiency considerably.…”

Section: Introductionmentioning

confidence: 99%