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Highly conductive all-plastic electrodes fabricated using a novel chemically controlled transfer-printing method
Nara Kim1, Hongkyu Kang, Jong-Hoon Lee
1School of Materials Science and Engineering, Department of Nanobio Materials and Electronics, Gwangju Institute of Science and Technology, Gwangju, 500-712, Republic of Korea.
Advanced Materials (Deerfield Beach, Fla.)
|February 25, 2015
Summary
A new method uses a sulfuric acid solution to create highly conductive and transferable plastic electrodes from PEDOT:PSS. This enables high-performance flexible transparent electronic devices.
Area of Science:
- Materials Science
- Polymer Chemistry
- Optoelectronics
Background:
- Transparent conductive films are crucial for electronic devices.
- Traditional methods often involve complex fabrication or expensive materials.
- Developing cost-effective, high-performance alternatives is essential.
Purpose of the Study:
- To develop a novel, solution-based transfer-printing method for high-performance all-plastic transparent electrodes.
- To enhance the electrical conductivity and adhesion properties of PEDOT:PSS.
- To demonstrate the feasibility of fabricating flexible and transparent optoelectronic devices using the novel electrodes.
Main Methods:
- A solution process involving sulfuric acid (H2SO4) treatment of poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS).
- Enhancement of electrical conductivity exceeding 4000 S cm(-1).
- Chemical modification of adhesion properties for "pick-and-place" transfer using elastomeric stamps onto various surfaces.
Main Results:
- Achieved significantly enhanced electrical conductivity of PEDOT:PSS.
- Demonstrated successful "pick-and-place" transfer of PEDOT:PSS electrodes onto diverse substrates.
- Fabricated flexible and transparent optoelectronic devices exhibiting excellent performance.
Conclusions:
- The novel transfer-printing method offers a scalable and efficient route to high-performance plastic transparent electrodes.
- Sulfuric acid treatment is effective in boosting PEDOT:PSS conductivity and enabling facile transfer.
- The developed electrodes are suitable for advanced flexible and transparent electronic applications.
