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Electrohydrodynamic Nanopatterning: A Novel Solvent-Assisted Technique for Unconventional Substrates
Hyunje Park1,2, Ha Young Choi1, Heejoon Chae1
1Department of Physics, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea.
Nano Letters
|December 11, 2023
Summary
A new solvent-assisted method enables successful transfer of electrohydrodynamic (EHD)-patterned structures to unconventional substrates, overcoming previous limitations and achieving near 100% success rates for diverse materials.
Area of Science:
- Materials Science
- Nanotechnology
- Surface Science
Background:
- Electrohydrodynamic (EHD)-driven patterning is an efficient micro/nanostructure fabrication technique.
- Current EHD methods are limited to conventional substrates due to electric field requirements.
- Nontraditional substrates like flexible or nonflat surfaces are challenging for EHD patterning.
Purpose of the Study:
- To extend the applicability of EHD-driven patterning to nontraditional substrates.
- To develop a method for detaching and transferring EHD-induced structures.
- To overcome the substrate limitations of conventional EHD processes.
Main Methods:
- Introduction of a solvent-assisted capillary peel-and-transfer technique.
- Successful removal of diverse EHD-induced structures from original substrates.
- Transfer of detached structures onto nonconventional substrates.
Main Results:
- Achieved a near 100% success rate for structure removal and transfer.
- Demonstrated versatility by transferring structures with engineered wettability.
- Successfully transferred patterned structures of metals and metal oxides.
Conclusions:
- The developed method significantly broadens the application scope of EHD patterning.
- Nontraditional substrates can now be utilized for EHD-fabricated micro/nanostructures.
- This technique offers a versatile solution for transferring complex patterned materials.
