Anisotropically Oriented Carbon Films with Dual-Function of Efficient Heat Dissipation and Excellent Electromagnetic Interference Shielding Performances

Mingyi Tan; Daming Chen; Yuan ChengHuiqi SunGuiqing ChenShun DongGuangdong ZhaoBoqian SunShiqi WuWenzheng ZhangJiecai HanWenbo HanXinghong Zhang

首页> 外文期刊>Advanced functional materials >Anisotropically Oriented Carbon Films with Dual-Function of Efficient Heat Dissipation and Excellent Electromagnetic Interference Shielding Performances

【24h】

Anisotropically Oriented Carbon Films with Dual-Function of Efficient Heat Dissipation and Excellent Electromagnetic Interference Shielding Performances

机译：Anisotropically Oriented Carbon Films with Dual-Function of Efficient Heat Dissipation and Excellent Electromagnetic Interference Shielding Performances

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

The rapid development of next-generation portable electronic devices urgentlyrequires dual-functional materials that possess both efficient heat dissipationand outstanding electromagnetic interference (EMI) shielding performances.In this study, anisotropically oriented carbon films with high thermal conductivityand excellent EMI shielding properties are prepared through an innovativeglucose hydrogel-controllable carbonization method. The horizontalalignment of nanocrystalline graphite results in oriented structures with anextremely high in-plane thermal conductivity of 439.9 W m~(?1) K~(?1), exhibitinga more effective heat-dissipating capacity on smartphones than their commercialgraphite counterparts. Additionally, owing to multiple internal reflectionsarising from the oriented structures, the films exhibit an EMI shieldingeffectiveness (SE) of 21.72 dB at an ultrathin thickness of 480 nm in theX-band and an extraordinarily high absolute shielding effectiveness (SSE/t) of275 883 dB cm~2 g~(?1), significantly outperforming most of the reported syntheticmaterials. Furthermore, the flexibility, high mechanical strength, andstability of the films are demonstrated and therefore show promising applicationprospects. This study offers a facile yet feasible strategy for preparingdual-functional materials to address the heat emission and EMI problemsof advanced electronic devices in a more economical and environmentallyfriendly manner.

著录项

来源
《Advanced functional materials》 |2022年第31期|2202057.1-2202057.13|共13页
作者
Mingyi Tan; Daming Chen; Yuan ChengHuiqi SunGuiqing ChenShun DongGuangdong ZhaoBoqian SunShiqi WuWenzheng ZhangJiecai HanWenbo HanXinghong Zhang;
展开▼
作者单位

National Key Laboratory of Science andTechnology on Advanced Composites in Special EnvironmentsHarbin Institute of TechnologyNo. 2 Yikuang Street, Harbin 150000, P. R. China;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类
关键词
carbon films; electromagnetic interference shielding; heat dissipation; hydrogels; oriented structures;

Anisotropically Oriented Carbon Films with Dual-Function of Efficient Heat Dissipation and Excellent Electromagnetic Interference Shielding Performances

摘要

著录项

相关主题

期刊订阅