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Rapid Fabrication of Custom Microfluidic Devices for Research and Educational Applications
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Millimeter Thin and Rubber-Like Solid-State Lighting Modules Fabricated Using Roll-to-Roll Fluidic Self-Assembly and

Se-Chul Park1, Shantonu Biswas2, Jun Fang1

  • 1Electrical and Computer Engineering, University of Minnesota, 200 Union St. SE, Minneapolis, MN, 55455, USA.

Advanced Materials (Deerfield Beach, Fla.)
|May 13, 2015
PubMed
Summary

Researchers developed a millimeter-thin, rubber-like solid-state lighting module using advanced fabrication techniques. This flexible lighting solution utilizes light-emitting diodes (LEDs) and a novel stress-relieving electrode design for enhanced durability.

Keywords:
flexible electronicsfluidic self-assemblyroll-to-rollsolid-state lightingstretchable electronics

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Area of Science:

  • Materials Science
  • Solid-State Physics
  • Electrical Engineering

Background:

  • Traditional lighting modules often lack flexibility and are prone to mechanical stress.
  • Developing thin, durable, and flexible lighting solutions is crucial for next-generation electronic devices.

Purpose of the Study:

  • To report a novel millimeter-thin, rubber-like solid-state lighting module.
  • To demonstrate a fabrication process for flexible lighting incorporating light-emitting diodes (LEDs).

Main Methods:

  • Utilized roll-to-roll fluidic self-assembly for efficient module fabrication.
  • Employed a stretchable top and bottom electrode design to encapsulate light-emitting diodes (LEDs).
  • Implemented a lamination technique for top electrical contact, avoiding traditional wire-bonding.

Main Results:

  • Successfully fabricated a millimeter-thin, rubber-like solid-state lighting module.
  • Demonstrated effective mechanical stress relief for encapsulated light-emitting diodes (LEDs) using stretchable electrodes.
  • Achieved electrical connection without wire-bonding through a lamination process.

Conclusions:

  • The developed fabrication method enables the creation of highly flexible and durable solid-state lighting modules.
  • This approach offers a promising pathway for integrating advanced lighting into various flexible electronic applications.
  • The elimination of wire-bonding simplifies manufacturing and enhances module reliability.