Issue 9, 2021

A TTF–TCNQ complex: an organic charge-transfer system with extraordinary electromagnetic response behavior

Abstract

Charge-transfer based molecular conductors have attracted great attention in recent years, but have been rarely explored in the field of electromagnetic materials. In this work, a nanostructural tetrathiofulvlene-7,7,8,8-tetracyanoquinodimethane (TTF–TCNQ) complex, an organic charge-transfer system, was prepared via a solution mixing route. The electromagnetic response behavior of the TTF–TCNQ complex was systematically investigated. The results indicate that the TTF–TCNQ complex shows good electromagnetic absorption (EMA) performance with a filler-loading ratio of 30 wt% in the matrix, where its effective EMA bandwidth can be tuned in the frequency range of 7.1–16.6 GHz. Moreover, the TTF–TCNQ complex exhibits excellent electromagnetic interference shielding performance in the X-band when the filler-loading ratio increases to 45 wt%. A model involving an electronic structure, multi-polarization, and a conductive network is used to explain the electromagnetic response behavior of the TTF–TCNQ complex. This research opens up the exploration of organic charge-transfer systems in the field of electromagnetic materials, and significantly broadens the application scope of charge-transfer materials.

Graphical abstract: A TTF–TCNQ complex: an organic charge-transfer system with extraordinary electromagnetic response behavior

Supplementary files

Article information

Article type
Paper
Submitted
06 Nov 2020
Accepted
03 Feb 2021
First published
03 Feb 2021

J. Mater. Chem. C, 2021,9, 3316-3323

A TTF–TCNQ complex: an organic charge-transfer system with extraordinary electromagnetic response behavior

L. Wu, F. Wu, Q. Sun, J. Shi, A. Xie, X. Zhu and W. Dong, J. Mater. Chem. C, 2021, 9, 3316 DOI: 10.1039/D0TC05230B

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