Surface oxidation engineering for enhanced interface bonding achieving excellent electronic properties in multilayer nitrogen doped graphene/Cu composites wires

IF 6.5 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composites Communications Pub Date : 2024-10-29 DOI:10.1016/j.coco.2024.102139

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Abstract

Graphene/Cu composites have attracted significant research attention due to their exceptional electrical conductivity and ampacity. However, the growth of high-quality graphene on curved copper surfaces remains challenging due to the poor wettability between Cu and C. This study presents a novel approach for the in-situ growth of nitrogen-doped graphene/Cu composite wire utilizing copper wire surface oxidation and microwave plasma heating. Nitrogen defects and CuO nanoparticles enhance the Cu-C interface, promoting uniform graphene growth, efficient electron transfer and Joule heat dissipation. Consequently, the composite wire demonstrates a 10.4 % improvement in electrical conductivity and a 48.6 % increase in ampacity. The finite element simulation was employed to investigate the primary mechanisms underlying ampacity enhancement and thermal failure in nitrogen-doped graphene/Cu wire. This work offers a promising strategy for improving the graphene-Cu interface, paving the way for advanced composite wires with superior electrical properties.

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在多层掺氮石墨烯/铜复合材料导线中利用表面氧化工程增强界面键合，从而实现优异的电子特性

石墨烯/铜复合材料因其卓越的导电性和电容量而备受研究关注。然而，由于铜和碳之间的润湿性较差，在弯曲的铜表面生长高质量的石墨烯仍然具有挑战性。本研究提出了一种利用铜线表面氧化和微波等离子加热原位生长掺氮石墨烯/铜复合材料线的新方法。氮缺陷和 CuO 纳米粒子增强了 Cu-C 界面，促进了石墨烯的均匀生长、高效电子传递和焦耳散热。因此，复合导线的导电率提高了 10.4%，电容量增加了 48.6%。有限元模拟被用来研究氮掺杂石墨烯/铜线的电容量提高和热失效的主要机制。这项研究为改善石墨烯-铜界面提供了一种前景广阔的策略，为具有优异电气性能的先进复合导线铺平了道路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Composites Communications Materials Science-Ceramics and Composites

CiteScore

12.10

自引率

10.00%

发文量

340

审稿时长

36 days

期刊介绍： Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.