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Updated: Mar 8, 2026

Scalable Solution-processed Fabrication Strategy for High-performance, Flexible, Transparent Electrodes with Embedded Metal Mesh

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Highly Stretchable and Waterproof Electroluminescence Device Based on Superstable Stretchable Transparent Electrode.

Banseok You^1,2, Youngmin Kim¹, Byeong-Kwon Ju²

¹Display Materials & Components Research Center, Korea Electronics Technology Institute , 68 Yatap-dong, Bundang-gu, Seongnam 463-816, South Korea.

ACS Applied Materials & Interfaces

|January 20, 2017

Summary

Researchers developed a new stretchable, waterproof transparent conductor using silver nanowires and a polyurethane urea coating on a silicone substrate. This innovation enables durable, flexible electronic devices, even in wet conditions.

Keywords:

electroluminescence polyurethane urea silver nanowire stretchable device waterproof

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Area of Science:

Materials Science
Polymer Chemistry
Nanotechnology

Background:

Expanding the application of electronics requires enhanced stretchability and waterproof properties.
Current materials often compromise on flexibility or water resistance.

Purpose of the Study:

To fabricate an elastic transparent conductor with superior stretchability and waterproof capabilities.
To develop stretchable electroluminescence (EL) devices using the novel conductor.

Main Methods:

Fabrication of a transparent conductor using silver nanowires (AgNWs) on a hydroxylated polydimethylsiloxane (PDMS) substrate coated with polyurethane urea (PUU).
Utilizing hydrogen bonding between PUU, poly(vinylpyrrolidone) on AgNWs, and hydroxylated PDMS for enhanced adhesion.
Incorporating ZnS particles into PUU for creating stretchable EL devices.

Main Results:

The developed conductor exhibited excellent stretchability (up to 150%) and mechanical stability.
The EL devices demonstrated robust performance, surviving 5000 cycles of 100% stretch-release testing.
The materials showed strong adhesion and waterproof characteristics, even in aqueous environments.

Conclusions:

The novel PUU/AgNWs/PDMS system provides a viable pathway for creating highly stretchable and waterproof transparent electrodes.
This advancement facilitates the development of fully stretchable and waterproof electronic devices for diverse applications.