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Title: Tuning the Interfacial Thermal Conductance between Polystyrene and Sapphire by Controlling the Interfacial Adhesion
Author: Zheng, Kun1, 3; Sun, Fangyuan2; Tian, Xia2, 4; Zhu, Jie2; Ma, Yongmei1; Tang, Dawei2; Wang, Fosong1
Source: ACS APPLIED MATERIALS & INTERFACES
Issued Date: 2015-10-28
Volume: 7, Issue:42, Pages:23644-23649
Keyword: interfacial thermal conductance ; intelfacial adhesion ; spin-coating polymer thin film ; time domain thermoreflectance
DOI: 10.1021/acsami.5b07188
DOC Type: Article
English Abstract: In polymer-based electric microdevices, thermal transport across polymer/ceramic interface is essential for heat dissipation, which limits the improvement of the device performance and lifetime. In this work, four sets of c polystyrene (PS) thin films/sapphire samples were prepared with different the PS films and the sapphire were measured by time domain thermoreflectance interface adhesion values, which was achieved by changing the rotation speed in the spin-coating process. The interfacial thermal conductance (ITC) between method, and the interfacial adhesion between the PS films and the sapphire, as measured by a scratch tester, was found to increase with the rotation speed from 2000 to 8000 rpm. The ITC shows a similar dependence on the rotation speed, increasing up to a 3-fold from 7.0 +/- 1.4 to 21.0 +/- 4.2 MW/(m(2) K). This study demonstrates the role of spin-coating rotation speed in thermal transport across the polymer/ceramic interfaces, evoking a much simpler mechanical method for tuning this type of ITC. The findings of enhancement of the ITC of polymer/ceramic interface can shed some light on the thermal management and reliability of macroand microelectronics, where polymeric and hybrid organic inorganic nano films are employed.
WOS Headings: Science & Technology ; Technology
WOS Subject: Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Subject Extended: Science & Technology - Other Topics ; Materials Science
WOS Keyword Plus: THIN-FILMS ; CARBON NANOTUBES ; NANOSCALE ; TRANSPORT ; CONDUCTIVITY ; POLYMERS
Indexed Type: SCI
Funder: National Natural Science Foundation of China(51373184 ; National Plan for Science & Technology Support, China(2014BAC03B05) ; MoST (Ministry of Science and Technology) 973 Research Programme(2014CB931803 ; 51336009) ; 2012CB933801)
Language: 英语
WOS ID: WOS:000363994700034
Citation statistics:
Content Type: 期刊论文
URI: http://ir.etp.ac.cn/handle/311046/112299
Appears in Collections:中国科学院工程热物理所(论文库)_期刊论文(SCI)

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description.institution: 1.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.China Univ Petr, Thermal Engn & Power Dept, Qingdao 266580, Peoples R China
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