Highly Thermally Conducting Polymer-Based Films with Magnetic Field-Assisted Vertically Aligned Hexagonal Boron Nitride for Flexible Electronic Encapsulation

doi:10.1021/acsami.9b06062

IMR OpenIR

	Highly Thermally Conducting Polymer-Based Films with Magnetic Field-Assisted Vertically Aligned Hexagonal Boron Nitride for Flexible Electronic Encapsulation
	Yuan, Jie 1,2; Qian, Xitang 1,2; Meng, Zhichao 1,2; Yang, Bo 4; Liu, Zhi-Quan 1,2,3
通讯作者	Liu, Zhi-Quan(zqliu@siat.ac.cn)
	2019-05-15
发表期刊	ACS APPLIED MATERIALS & INTERFACES
ISSN	1944-8244
卷号	11 期号:19 页码:17915-17924
摘要	Here, a facile, low-cost, and high-efficiency method to construct a vertically aligned hexagonal boron nitride nanosheet (hBNN) thermal conduction channel structure is proposed to improve the thermal conductivity. First, exfoliated negatively charged BNNs and positively charged FeCo nanocubes self-assemble to form complex nanomaterials by strong electrostatic interactions. Then, the BNNs can orient with FeCo nanocubes in magnetic field, and the {001} facets of BNNs adsorb on the {100} facets of FeCo nanocubes. The large scale range and high-density FeCo/hBN-aligned structures are observed by scanning electron microscopy, which can act as thermal dissipation channels by conveying more phonons through a preponderant thermally conductive direction. The thermal conductivity of the composite films with 30 wt % FeCo and 50 wt % BN filler is 2.25 W m(-1) K-1, 7 times higher than that of the films only containing 50 wt % randomly distributed hBN filler (0.325 W m(-1) K-1) and 20 times higher than pure polydimethylsiloxane films (0.114 W m(-1) K-1). The thermal management capability of the composite films is evaluated as a thermal conducting substrate of a light-emitting diode chip and the infrared thermal technology. Apart from the surprising thermal conductivity, FeCo-BNNs composite films also exhibit superb flexibility.
关键词	hexagonal boron nitride nanosheets (hBNNs) magnetic FeCo nanocubes electrostatic interactions vertically orientation thermal conductivity
资助者	National Key R&D Project from Minister of Science and Technology of China ; National Natural Science Foundation of China ; Shenzhen International Cooperation Project
DOI	10.1021/acsami.9b06062
收录类别	SCI
语种	英语
资助项目	National Key R&D Project from Minister of Science and Technology of China[2017YFB0406000] ; National Natural Science Foundation of China[51601033] ; Shenzhen International Cooperation Project[GJHZ20180420180909654]
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000468364500087
出版者	AMER CHEMICAL SOC
引用统计	被引频次：83[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/133375
专题	中国科学院金属研究所
通讯作者	Liu, Zhi-Quan
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China 4.Northeastern Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Yuan, Jie,Qian, Xitang,Meng, Zhichao,et al. Highly Thermally Conducting Polymer-Based Films with Magnetic Field-Assisted Vertically Aligned Hexagonal Boron Nitride for Flexible Electronic Encapsulation[J]. ACS APPLIED MATERIALS & INTERFACES,2019,11(19):17915-17924.
APA	Yuan, Jie,Qian, Xitang,Meng, Zhichao,Yang, Bo,&Liu, Zhi-Quan.(2019).Highly Thermally Conducting Polymer-Based Films with Magnetic Field-Assisted Vertically Aligned Hexagonal Boron Nitride for Flexible Electronic Encapsulation.ACS APPLIED MATERIALS & INTERFACES,11(19),17915-17924.
MLA	Yuan, Jie,et al."Highly Thermally Conducting Polymer-Based Films with Magnetic Field-Assisted Vertically Aligned Hexagonal Boron Nitride for Flexible Electronic Encapsulation".ACS APPLIED MATERIALS & INTERFACES 11.19(2019):17915-17924.