Flexible Two-Dimensional Inorganic Nanosheet/PEDOT:PSS Thermoelectric Composite Films

Author:

Qin Jie1,Du Yong1,Wang Lei1,Du Minzhi1,Eklund Per2,Ke Qinfei1

Affiliation:

1. School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China.

2. Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-58183 Linköping, Sweden.

Abstract

Flexible thermoelectric generators (f-TEGs) are of importance for self-powered, portable, and wearable electronics. The materials’ thermoelectric (TE) performance is one of the factors that affect the conversion efficiency of f-TEGs. Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) as a kind of conducting polymers has low thermal conductivity and good processability in solution; however, its TE properties are still much lower than those of the inorganic TE materials, which limits its wide applications in f-TEGs. Two-dimensional (2D) inorganic nanosheets (NSs) exfoliated from their corresponding powders are promising filler materials for enhancing the TE properties of PEDOT:PSS. This paper provides a brief review on the research progress of flexible 2D inorganic NS/PEDOT:PSS composite films fabricated by vacuum filtration, drop casting, and spin coating. The challenges, perspectives, and outlooks of flexible 2D inorganic NS/PEDOT:PSS composite films are further discussed.

Funder

Shanghai Shuguang Program

Natural Science Foundation of Shanghai

Wallenberg Academy Fellows program

Swedish Research Council

Swedish Energy Agency

Publisher

American Association for the Advancement of Science (AAAS)

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