Millimeter Thin and Rubber-Like Solid-State Lighting Modules Fabricated Using Roll-to-Roll Fluidic Self-Assembly and Lamination

Se-Chul Park; Shantonu Biswas; Jun Fang; Mahsa Mozafari; Thomas Stauden; Heiko O Jacobs

doi:10.1002/adma.201500839

Millimeter Thin and Rubber-Like Solid-State Lighting Modules Fabricated Using Roll-to-Roll Fluidic Self-Assembly and Lamination

Adv Mater. 2015 Jun 24;27(24):3661-8. doi: 10.1002/adma.201500839. Epub 2015 May 12.

Authors

Se-Chul Park¹, Shantonu Biswas², Jun Fang¹, Mahsa Mozafari², Thomas Stauden², Heiko O Jacobs²

Affiliations

¹ Electrical and Computer Engineering, University of Minnesota, 200 Union St. SE, Minneapolis, MN, 55455, USA.
² Fachgebiet Nanotechnologie, Technische Universität Ilmenau, Gustav-Kirchhoff-Strasse 1, D-98693, Ilmenau, Germany.

Abstract

A millimeter thin rubber-like solid-state lighting module is reported. The fabrication of the lighting module incorporates assembly and electrical connection of light-emitting diodes (LEDs). The assembly is achieved using a roll-to-roll fluidic self-assembly. The LEDs are sandwiched in-between a stretchable top and bottom electrode to relieve the mechanical stress. The top contact is realized using a lamination technique that eliminates wire-bonding.

Keywords: flexible electronics; fluidic self-assembly; roll-to-roll; solid-state lighting; stretchable electronics.