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Nanotransfer-on-Things: From Rigid to Stretchable Nanophotonic Devices
Junseong Ahn1,2, Jimin Gu1, Yongrok Jeong1,2
1Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.
ACS Nano
|March 14, 2023
Summary
A new universal nanotransfer printing (nTP) method uses covalent adhesives and plasma etching to enable reliable printing of nanophotonic devices on diverse materials and substrates.
Area of Science:
- Nanophotonics
- Materials Science
- Surface Chemistry
Background:
- Nanotransfer printing (nTP) is crucial for nanophotonic devices.
- Current nTP methods are limited by material and substrate compatibility due to specific bonding requirements.
Purpose of the Study:
- To develop a universal nTP technique overcoming current limitations.
- To enable reliable printing on a wide range of materials and substrates.
Main Methods:
- Utilized covalent bonding-based adhesives for enhanced material-substrate adhesion.
- Employed plasma-based selective etching to control mold-material adhesion.
- Demonstrated modulation of relative adhesion forces independent of material or substrate.
Main Results:
- Successfully printed four optical materials on nine diverse substrates (rigid, flexible, stretchable).
- Fabricated functional nanophotonic devices: ring hologram, flexible plasmonic color filter, and strain sensors.
- Achieved high accuracy and reliability, with device performance matching simulations.
Conclusions:
- The developed universal nTP technique significantly expands the applicability of nTP.
- This method facilitates the fabrication of advanced nanophotonic devices with high fidelity.
- The approach offers a reliable platform for next-generation optical and electronic devices.
