Plasma-Assisted Microcontact Printing

Area of Science:

• Materials Science
• Nanotechnology
• Surface Science

Background:

• Microcontact printing and polymer pen lithography enable micro- and nanoscale patterning.
• Existing methods often require direct contact for ink transfer.

Purpose of the Study:

• To introduce and demonstrate a novel lithography technique: plasma-assisted microcontact printing (PA-μCP).
• To showcase PA-μCP's capability for grayscale patterning and fabrication of microstructures.

Main Methods:

• Utilized plasma-deposited fluorocarbon (FC) as ink material.
• Transferred FC ink via thermal evaporation, avoiding direct contact.
• Employed PA-μCP for multi-patterning on structured substrates and grayscale patterning.

Main Results:

• Demonstrated successful pattern transfer using FC ink via thermal evaporation.
• Achieved conformal multi-patterning on structured substrates.
• Fabricated grayscale patterns for creating Fabry-Perot planar cavities for structure color printing.

Conclusions:

• PA-μCP provides a distinct printing mechanism compared to conventional techniques.
• The method facilitates convenient fabrication of photonic, electronic, and biological devices.
• PA-μCP enables precise control over pattern geometry and height for advanced applications.