Solution-Processed Highly Superparamagnetic and Conductive PEDOT:PSS/Fe3 O4 Nanocomposite Films with High Transparency and High Mechanical Flexibility

ACS Applied Materials & Interfaces
Yijie XiaJianyong Ouyang

Abstract

Multifunctional films can have important applications. Transparent and flexible films with high conductivity and magnetic properties can be used in many areas, such as electromagnetic interference (EMI) shielding, magnetic switching, microwave absorption, and also biotechnology. Herein, novel highly conductive and superparamagnetic thin films with excellent transparency and flexibility have been demonstrated. The films were formed from a poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS; Clevios PH1000) aqueous solution added with iron oxide (Fe3O4) nanoparticles that have a size of ∼20 nm by spin-coating. The PEDOT:PSS/Fe3O4 films have a high conductivity of 1080 S/cm through treatment with methylammonium iodide in an organic solvent. The high-conductivity PEDOT:PSS/Fe3O4 films can also have a saturation magnetization of 25.5 emu/g and an EMI shielding effectiveness of more than 40 dB in the 8-12.5 GHz (X band) frequency range. The PEDOT:PSS/Fe3O4 films have additional advantages, like excellent transparency, good mechanical flexibility, low cost, and light weight. In addition, we fabricate flexible PEDOT:PSS/Fe3O4 silk threads with a high magnetism and conductivity.

References

Jun 5, 1999·Journal of Biomedical Materials Research·P X Ma, R Zhang
Apr 12, 2002·Journal of Biomedical Materials Research·Wan-Ju LiFrank K Ko
Jul 20, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Jing HuangChuanxi Xiong
Sep 18, 2014·Lab on a Chip·A AlfadhelJ Kosel
Oct 31, 2015·Proceedings of the National Academy of Sciences of the United States of America·Brian J WorfolkZhenan Bao

❮ Previous
Next ❯

Citations

Jan 23, 2018·Macromolecular Rapid Communications·Hongyan YaoJianyong Ouyang

❮ Previous
Next ❯

Related Concepts

Related Feeds

Bioinformatics in Biomedicine

Bioinformatics in biomedicine incorporates computer science, biology, chemistry, medicine, mathematics and statistics. Discover the latest research on bioinformatics in biomedicine here.