Bi-functional flexible Ag2Se/Polyvinylidene fluoride composite films for thermal energy conversion and electromagnetic interference shielding by solution 3D printing

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

Composites Communications Pub Date : 2024-09-10 DOI:10.1016/j.coco.2024.102074

引用次数: 0

Abstract

Developing bi-functional thermoelectric (TE) and electromagnetic interference (EMI) shielding materials is an effective way for the integrated electronic devices to face the accumulated thermal energy and complicated electromagnetic environment. Herein, flexible Ag₂Se/polyvinylidene fluoride (Ag₂Se/PVDF) composite films were successfully prepared through solution 3D printing and subsequent annealing treatment. As Ag₂Se content increased, both the power factor and average total EMI shielding effectiveness (SE_T) were boosted. When the mass fraction of Ag₂Se was 85 wt%, a power factor of 904.6 μW m⁻¹K⁻² at 360 K was achieved for the ASP-85 composite film. Meanwhile, this ASP-85 composite film shown the outstanding SE_T value of 56.1 dB at 52 μm thickness. Flexible Ag₂Se/PVDF composite films displayed the excellent thermal energy conversion and EMI shielding capacity.

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通过溶液三维打印实现热能转换和电磁干扰屏蔽的双功能柔性 Ag2Se/Polyvinylidene fluoride 复合薄膜

开发双功能热电（TE）和电磁干扰（EMI）屏蔽材料是集成电子设备面对累积热能和复杂电磁环境的有效途径。本文通过溶液三维打印和随后的退火处理，成功制备了柔性Ag2Se/聚偏二氟乙烯（Ag2Se/PVDF）复合薄膜。随着 Ag2Se 含量的增加，功率因数和平均总电磁干扰屏蔽效能（SET）都得到了提高。当 Ag2Se 的质量分数为 85 wt% 时，ASP-85 复合薄膜在 360 K 下的功率因数达到了 904.6 μW m-1K-2。同时，这种 ASP-85 复合薄膜在厚度为 52 μm 时显示出 56.1 dB 的出色 SET 值。柔性 Ag2Se/PVDF 复合薄膜具有出色的热能转换和电磁干扰屏蔽能力。

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.