Thermal characterization of power devices using graphene-based film
Paper i proceeding, 2014

Due to its atomic structure with sp2 hybrid orbitals and unique electronic properties, graphene has an extraordinarily high thermal conductivity which has been reported to be up to 5000 W/mK. As a consequence, the use of graphene-based materials for thermal management has been subject to substantial attention during recent years in both academia and industry. In this paper, the development of a new type of graphene-based thin film for heat dissipation in power devices is presented. The surface of the developed graphene based film is primarily composed of functionalized graphene oxide, that can be bonded chemically to the device surface and thus minimize the interface thermal resistance caused by surface roughness. A very high in-plane thermal conductivity with a maximum value of 1600 W/mK was detected by laser flash machine regarding to the graphene-based films. To investigate the structure of the graphene-based films, scanning electron microscopy (SEM) and raman spectroscopy were carried out. Finally, LED demonstrators were built to illustrate the thermal performance of graphene-based film and the functional layers. IR camera recorded a 5°C lower temperature of a LED demonstrator with SHT G1000 as the binding layer instead of a commercial thermal conductive adhesive.

Författare

P. Zhang

Chalmers University of Technology

East China University of Science and Technology

Nan Wang

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

Carl Zandén

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

L. Ye

SHT Smart High-Tech

Yifeng Fu

SHT Smart High-Tech

Johan Liu

Chalmers, Mikroteknologi och nanovetenskap (MC2), Elektronikmaterial och system

64th Electronic Components and Technology Conference, ECTC 2014; Walt Disney World Swan and Dolphin ResortOrlando; United States; 27 May 2014 through 30 May 2014

0569-5503 (ISSN)

459-463

Ämneskategorier

Nanoteknik

Bioinformatik och systembiologi

DOI

10.1109/ECTC.2014.6897324

ISBN

978-1-4799-2407-3