Omnidirectional Printing of Flexible, Stretchable, and Spanning Silver Microelectrodes

Author:

Ahn Bok Y.123,Duoss Eric B.123,Motala Michael J.123,Guo Xiaoying123,Park Sang-Il123,Xiong Yujie123,Yoon Jongseung123,Nuzzo Ralph G.123,Rogers John A.123,Lewis Jennifer A.123

Affiliation:

1. Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.

2. Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.

3. Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.

Abstract

Flexible, stretchable, and spanning microelectrodes that carry signals from one circuit element to another are needed for many emerging forms of electronic and optoelectronic devices. We have patterned silver microelectrodes by omnidirectional printing of concentrated nanoparticle inks in both uniform and high–aspect ratio motifs with minimum widths of approximately 2 micrometers onto semiconductor, plastic, and glass substrates. The patterned microelectrodes can withstand repeated bending and stretching to large levels of strain with minimal degradation of their electrical properties. With this approach, wire bonding to fragile three-dimensional devices and spanning interconnects for solar cell and light-emitting diode arrays are demonstrated.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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