Graphene related materials for thermal management

Abstract

Almost 15 years have gone ever since the discovery of graphene as a single atom layer. Numerous papers have been published to demonstrate its high electron mobility, excellent thermal and mechanical as well as optical properties. We have recently seen more and more applications towards using graphene in commercial products. This paper is an attempt to review and summarize the current status of the research of the thermal properties of graphene and other 2D based materials including the manufacturing and characterization techniques and their applications, especially in electronics and power modules. It is obvious from the review that graphene has penetrated the market and gets more and more applications in commercial electronics thermal management context. In the paper, we also made a critical analysis of how mature the manufacturing processes are; what are the accuracies and challenges with the various characterization techniques and what are the remaining questions and issues left before we see further more applications in this exciting and fascinating field.

Efficient machine-learning based interatomic potentialsfor exploring thermal conductivity in two-dimensional materials

“…Thermal conductivity is among the most important intrinsic properties of materials playing a key role in energy device engineering and thermal management [1][2][3][4]. For the majority of advanced applications, as those in electronics and energy storage/conversion systems, components with higher thermal conductivities are highly desirable to enhance the heat dissipation rates and suppress the overheating issues.…”

Vertically Aligned Graphene for Thermal Interface Materials

“…[83,84] It is worth noting that in addition to the unique electrical, mechanical, and chemical properties of graphene, its excellent thermal properties make it widely used for heat dissipation. [8,[85][86][87] To satisfy the requirements of high vertical thermal conductivity of TIMs, a successful approach that erects graphene sheets for construction of a verticalstructured graphene-based TIM has been widely demonstrated to increase the thermal conductivity in the vertical direction. [52] 50-250 V CH 4 -0.5-3 -Vertical DC [31] 250 V CH 4 0.75 4 5.33 Random DC [53] 750-800 V CH 4 1 --Random DC [54] 150 W CH 4 0.25 0.09 0.36 Random DC þ MW [55] 200 V þ 500 W CH 4 1 38 38 Vertical DC þ MW [56] 185 V þ 500 W CH 4 0.25 2.5 10 Vertical DC þ MW [57] 200 V þ 500 W CH 4 0.33 --Vertical MW [58] 1500 W CH 4 0.5 -96 Random MW [59] 2000 W CH 4 0.83 --Random MW [60] 800 W CH 4 /C 2 H 2 0.5 30 60 Vertical MW [41] 60 W CO 0.025 1.5 60 Both…”

Graphene nanoplatelets composite membranes for thermal comfort enhancement in performance textiles

“…[12,13] The extremely high thermal conductivity of quasi-two-dimensional systems is mainly attributed to phonons, quanta of the crystal lattice vibrations. [14][15][16] When one side of the crystal lattice gets in contact with a heat source, heat conducts through the atoms in the first layer. Since the atoms are densely packed in the lattice, the vibrations quickly spread from the atoms of the first layer to the adjacent layers and this results in a rapid heat transfer through the material.…”

“…[17,[26][27][28][29] Not only they possess exceptionally high thermal conductivity, but their large surface area maximizes the interface with the polymer matrix and further improves the overall thermal performance of the composites. [12,16] On the other hand, polyurethanes (PU) are widely recognized as multipurpose engineering materials [30] for their easy processability along with other interesting properties (i.e., relatively high flexibility, heat stability, tensile strength). Accordingly, graphene and its derivative are widely used for the preparation of PU-based nanocomposites, and different recent papers report on the successful use of this carbon allotrope for improving thermal, [31] mechanical, [30,32,33] gas barrier, [33,34] and electrical properties.…”