Volume 18, Issue 2 2105567
Research Article

Millefeuille-Inspired Thermal Interface Materials based on Double Self-Assembly Technique for Efficient Microelectronic Cooling and Electromagnetic Interference Shielding

Yueyang Gao

Yueyang Gao

State Key Laboratory of Chemical Engineering, Collaborative Innovation Centre of Chemical Science and Engineering, Department of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350 China

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Di Bao

Di Bao

College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, 163318 China

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Minghang Zhang

Minghang Zhang

State Key Laboratory of Chemical Engineering, Collaborative Innovation Centre of Chemical Science and Engineering, Department of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350 China

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Yexiang Cui

Yexiang Cui

State Key Laboratory of Chemical Engineering, Collaborative Innovation Centre of Chemical Science and Engineering, Department of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350 China

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Fei Xu

Fei Xu

State Key Laboratory of Chemical Engineering, Collaborative Innovation Centre of Chemical Science and Engineering, Department of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350 China

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Xiaosong Shen

Xiaosong Shen

Tianjin Key Lab Composite & Functional Materials, Department of Materials Science and Engineering, Tianjin University, Tianjin, 300072 China

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Yanji Zhu

Yanji Zhu

Tianjin Key Lab Composite & Functional Materials, Department of Materials Science and Engineering, Tianjin University, Tianjin, 300072 China

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Huaiyuan Wang

Corresponding Author

Huaiyuan Wang

State Key Laboratory of Chemical Engineering, Collaborative Innovation Centre of Chemical Science and Engineering, Department of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350 China

E-mail: [email protected]

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First published: 28 November 2021
Citations: 19

Abstract

Owing to the increasing power density of miniaturized and high-frequency electronic devices, flexible thermal interface materials (TIMs) with the electromagnetic interference (EMI) shielding property are in urgent demand to maintain the system performance and reliability. Recently, carbon-based TIMs receive considerable attention due to the ultrahigh intrinsic thermal conductivity (TC). However, the large-scale production of such TIMs is restricted by some technical difficulties, such as production-induced defects of graphite sheets, poor microstructure architecture within the matrix, and nonnegligible interfacial thermal resistance result from the strong phono scattering. In this work, inspired by the structure and production process of millefeuille cakes, a unique double self-assembly strategy for fabricating ultrahigh thermal conductive TIMs with superior EMI shielding performance is demonstrated. The percolating and oriented multilayered microstructure enables the TIM to exhibit an ultrahigh in-plane TC of 233.67 W m−1 K−1 together with an outstanding EMI shielding effectiveness of 79.0 dB (at 12.4 GHz). In the TIM evaluation system, a nearly 45 °C decrease is obtained by this TIM when compared to the commercial material. The obtained TIM achieves the desired balance between thermal conduction and EMI shielding performance, indicating broad prospects in the fields of military applications and next-generation thermal management systems.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

Research data are not shared.

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