Study on the dielectric properties of fluorinated graphene

IF 5.9 3区材料科学 Q2 CHEMISTRY, PHYSICAL

FlatChem Pub Date : 2025-03-28 DOI:10.1016/j.flatc.2025.100862

Zixuan Gou , Weibin Xi , Wei Jiang , Zekai Zhang , Jinping Zhao , Jin Zhou , Yang Su

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Abstract

The rapid evolution of fifth-generation (5G) communication technology calls for next-generation packaging materials that not only excel in dielectric performance like dielectric constant and dielectric loss but push the demand for thermal stability. Here, we explore superhydrophobic fluorinated graphene (FG), revealing a remarkable combination of dielectric properties and thermal stability that make FG a standout candidate for electronic packaging in 5G applications. By fine-tuning the fluorine-to‑carbon (F/C) ratio in the FG, we have achieved a dielectric constant as low as 1.50 with an F/C ratio of 1.18, significantly lower than many conventional materials. Even more impressively, our FG exhibits an ultra-low dielectric loss of just 0.0037 at 10 MHz. Beyond its outstanding electrical performance, FG boasts exceptional thermal stability, with a decomposition temperature high to ∼500 °C, far surpassing standard polymers for packaging materials. Moreover, its hydrophobic nature remains stable in outdoor environments, cementing its reliability over time. With its low dielectric constant, minimal dielectric loss, high thermal resilience, and environmental durability, FG holds tremendous promise as a competitive candidate in advanced packaging materials for 5G technology.

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氟化石墨烯介电性能研究

第五代（5G）通信技术的快速发展要求下一代封装材料不仅在介电常数和介电损耗等介电性能方面表现优异，而且还推动了对热稳定性的需求。在这里，我们探索了超疏水氟化石墨烯（FG），揭示了介电性能和热稳定性的显着组合，使FG成为5G应用中电子封装的杰出候选者。通过微调FG中的氟碳比（F/C），我们实现了介电常数低至1.50，F/C比为1.18，显著低于许多传统材料。更令人印象深刻的是，我们的FG在10 MHz时表现出仅0.0037的超低介电损耗。除了出色的电气性能外，FG还具有出色的热稳定性，分解温度高达~ 500°C，远远超过包装材料的标准聚合物。此外，它的疏水性在室外环境中保持稳定，随着时间的推移巩固了它的可靠性。FG具有低介电常数，最小介电损耗，高热弹性和环境耐久性，作为5G技术先进包装材料的竞争候选人，FG具有巨大的前景。

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来源期刊

FlatChem Multiple-

CiteScore

8.40

自引率

6.50%

发文量

104

审稿时长

26 days

期刊介绍： FlatChem - Chemistry of Flat Materials, a new voice in the community, publishes original and significant, cutting-edge research related to the chemistry of graphene and related 2D & layered materials. The overall aim of the journal is to combine the chemistry and applications of these materials, where the submission of communications, full papers, and concepts should contain chemistry in a materials context, which can be both experimental and/or theoretical. In addition to original research articles, FlatChem also offers reviews, minireviews, highlights and perspectives on the future of this research area with the scientific leaders in fields related to Flat Materials. Topics of interest include, but are not limited to, the following: -Design, synthesis, applications and investigation of graphene, graphene related materials and other 2D & layered materials (for example Silicene, Germanene, Phosphorene, MXenes, Boron nitride, Transition metal dichalcogenides) -Characterization of these materials using all forms of spectroscopy and microscopy techniques -Chemical modification or functionalization and dispersion of these materials, as well as interactions with other materials -Exploring the surface chemistry of these materials for applications in: Sensors or detectors in electrochemical/Lab on a Chip devices, Composite materials, Membranes, Environment technology, Catalysis for energy storage and conversion (for example fuel cells, supercapacitors, batteries, hydrogen storage), Biomedical technology (drug delivery, biosensing, bioimaging)