High Resolution Micro-patterning of Stretchable Polymer Electrodes through Directed Wetting Localization

Sujie Kang; Bo Yeon Lee; Sin Hyung Lee; Sin Doo Lee

doi:10.1038/s41598-019-49322-7

High Resolution Micro-patterning of Stretchable Polymer Electrodes through Directed Wetting Localization

Sujie Kang, Bo Yeon Lee, Sin Hyung Lee, Sin Doo Lee

School of Advanced Fusion Studies

Seoul National University

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

A microarray of conducting polymer electrodes with high resolution and high pattern-fidelity is developed on a stretchable substrate through the directed wetting localization (DWL) by the differential hydrophobicity. The large difference in the surface energy between the wetting and dewetting regions serves as the major determinant of the pattern resolution and the pattern-fidelity, yielding the full surface coverage in the stretchable electrode array (SEA) with 30 μm in width. The electrical characteristics of the SEA are well preserved under different types of elastic deformations. All-solution-processed polymer light-emitting diodes (except for the cathode) based on our patterned stretchable electrodes show no appreciable degradation of the performance under stretching. The DWL provides a simple and effective way of building up diverse stretchable electrical and optoelectronic devices in advanced wearable and bio-integrated electronics.

Original language	English
Article number	13066
Journal	Scientific Reports
Volume	9
Issue number	1
DOIs	https://doi.org/10.1038/s41598-019-49322-7
State	Published - 1 Dec 2019

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abstract = "A microarray of conducting polymer electrodes with high resolution and high pattern-fidelity is developed on a stretchable substrate through the directed wetting localization (DWL) by the differential hydrophobicity. The large difference in the surface energy between the wetting and dewetting regions serves as the major determinant of the pattern resolution and the pattern-fidelity, yielding the full surface coverage in the stretchable electrode array (SEA) with 30 μm in width. The electrical characteristics of the SEA are well preserved under different types of elastic deformations. All-solution-processed polymer light-emitting diodes (except for the cathode) based on our patterned stretchable electrodes show no appreciable degradation of the performance under stretching. The DWL provides a simple and effective way of building up diverse stretchable electrical and optoelectronic devices in advanced wearable and bio-integrated electronics.",

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High Resolution Micro-patterning of Stretchable Polymer Electrodes through Directed Wetting Localization

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