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ACS Appl Mater Interfaces. 2016 Jun 08;8(22):14029-36. doi: 10.1021/acsami.6b01389. Epub 2016 May 27.

Transfer-Printed PEDOT:PSS Electrodes Using Mild Acids for High Conductivity and Improved Stability with Application to Flexible Organic Solar Cells.

ACS applied materials & interfaces

Xi Fan, Bingang Xu, Shenghua Liu, Chaohua Cui, Jinzhao Wang, Feng Yan

Affiliations

  1. Hubei 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.
  2. Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China.

PMID: 27184091 DOI: 10.1021/acsami.6b01389

Abstract

UNLABELLED: 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.

Keywords: PEDOT:PSS; acid residue; flexible electrode; organic solar cell; stability; transfer-printing

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