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A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles

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Published on: March 13, 2017

A universal method to produce low-work function electrodes for organic electronics.

Yinhua Zhou¹, Canek Fuentes-Hernandez, Jaewon Shim

¹Center for Organic Photonics and Electronics, School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.

Science (New York, N.Y.)

|April 21, 2012

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Researchers developed polymer surface modifiers that significantly lower the work function of conductors. This innovation simplifies manufacturing for organic electronics, offering an alternative to reactive metals.

Area of Science:

Materials Science
Organic Electronics
Surface Chemistry

Background:

Organic and printed electronics require low work function conductors for efficient electron transport.
Existing methods often involve reactive low work function metals, complicating manufacturing.
Developing accessible and effective surface modifiers is crucial for advancing optoelectronic devices.

Purpose of the Study:

To demonstrate that polymers with aliphatic amine groups can effectively reduce the work function of various conductors.
To present a solution for creating efficient electron-selective electrodes for organic optoelectronic devices.
To offer a viable, air-processable alternative to traditional low work function metals.

Main Methods:

Surface modification of conductors (metals, oxides, polymers, graphene) using polymers with aliphatic amine groups.

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Characterization of work function reduction via physisorption of the neutral polymer.

Evaluation of modified conductors as electron-selective electrodes in organic optoelectronic devices.

Main Results:

Polymers with aliphatic amine groups substantially reduce the work function of diverse conductor types.
The polymer modifiers are processed from solution in air, indicating ease of use.
Modified conductors function as efficient electron-selective electrodes.

Conclusions:

Polymer surface modifiers offer a practical method to achieve low work function conductors.
This approach simplifies the manufacturing of organic electronic devices.
The technology enables the development of low-cost, large-area organic electronics.