Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 9, Issue 9, Pages 3316-3323Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0tc05230b
Keywords
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Funding
- Fundamental Research Funds for the Central Universities [30920021107]
- National Natural Science Foundation of China [NSFC 51702161]
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A nanostructural TTF-TCNQ complex was prepared and showed good electromagnetic absorption performance with filler-loading ratio impacting its effective bandwidth. An electronic structure, multi-polarization, and conductive network model was used to explain the electromagnetic response behavior of the complex.
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.
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