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Transfer-Printed PEDOT:PSS Electrodes Using Mild Acids for High Conductivity and Improved Stability with Application
Xi Fan1, Bingang Xu, Shenghua Liu
1Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Faculty of Physics and Electronic Science, Department of Material Science and Engineering, Hubei University , Wuhan 430062, China.
Abstract:
Highly conductive, flexible, and transparent electrodes (FTEs) of
Pedot:
PSS films on plastic substrates have been achieved using strong acid treatments. However, it is rare to realize a performance attenuation of
Pedot:
PSS FTEs on plastic substrates and flexible optoelectronic devices because of strong acid residues in the
Pedot:
PSS matrix. Herein, we develop a feasible transfer-printing technique using mild acids. Because of a mild and weak property of these acids and less acid residues in
Pedot:
PSS matrix, the transferred
Pedot:
PSS FTEs exhibited a significant enhancement in stability, conductivity (3500 S cm(-1)), transparency, and mechanical flexibility on plastic substrates. Flexible organic solar cells with the FTEs also showed a remarkable enhancement in power conversion efficiency and stability in the ambient atmosphere. It is expected that the novel transfer-printing technique for making
Pedot:
PSS FTEs is also useful in many other types of flexible optoelectronic devices.
