Rapid and conformal coating of polymer resins by airbrushing for continuous and high-speed roll-to-roll nanopatterning: parametric quality controls and extended applications

We present a facile and scalable coating method based on controlled airbrushing, which is suitable for conformal resin coating in continuous roll-to-roll (R2R) nanoimprint lithography (NIL) process. By controlling the concentration of UV-curable polymeric resin with mixing the volatile solvent and i...

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Bibliographic Details
Published in:Nano convergence 2017, 4(11), , pp.1-5
Main Authors: Lee, Jae Hyuk, Na, Minho, Kim, Jiyeop, Yoo, Kangeun, Park, Jaekyu, Kim, Jeong Dae, Oh, Dong Kyo, Lee, Seungjo, Youn, Hongseok, Kwak, Moon Kyu, Ok, Jong G.
Format: Article
Language:English
Subjects:
Airbrushing
Chemistry and Materials Science
Conformal coating
Continuous coating
Continuous rolling
Dilution
Film thickness
High speed
Materials Science
Nano-patterning Lithography
Nanopattern
Nanoscale Science and Technology
Nanotechnology
Nanotechnology and Microengineering
Residual layer thickness
Roll-to-roll nanoimprint lithography
Thin film
Thin films
Ultraviolet radiation
고분자공학
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Summary:We present a facile and scalable coating method based on controlled airbrushing, which is suitable for conformal resin coating in continuous roll-to-roll (R2R) nanoimprint lithography (NIL) process. By controlling the concentration of UV-curable polymeric resin with mixing the volatile solvent and its airbrushing time, the coated resin film thickness can be readily tuned. After R2R NIL using a flexible nanoscale line pattern (nanograting) mold is conducted upon the airbrushed resin film, a large-area uniform nanograting pattern is fabricated with controlled residual layer thickness (RLT) based on the initial film thickness. We investigate the faithful airbrushing condition that can reliably create the uniform thin films as well as various nanopatterns with controlled morphologies. Using more diluted resin and shorter airbrushing time can reduce the RLTs favourably for many applications, yet is apt to induce the nanoscale pores and discontinued lines. We also discuss how to further improve the quality and scalability of resin airbrushing and its potential applications particularly requiring high-speed and conformal coating on highly topographic and flexible surfaces.
ISSN:2196-5404
2196-5404
DOI:10.1186/s40580-017-0105-2