Journal
2D MATERIALS
Volume 3, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2053-1583/3/1/011004
Keywords
hexagonal boron nitride; laminates; thermal conductivity; nanocomposites; heat spreaders; liquid-phase exfoliation; thermal management
Categories
Funding
- EU [604391]
- ERC
- Hetero2D
- EPSRC (Towards Engineering Grand Challenges program)
- Royal Society
- US Army Research Office
- NUST 'MISiS' [K1-2015-046]
- RFBR [15-02-01221, 14-02-00792]
- National Natural Science Foundation of China [11204253, U1232110]
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Two-dimensional materials are characterised by a number of unique physical properties which can potentially make them useful to a wide diversity of applications. In particular, the large thermal conductivity of graphene and hexagonal boron nitride (hBN) has already been acknowledged and these materials have been suggested as novel core materials for thermal management in electronics. However, it was not clear if mass produced flakes of hBN would allow one to achieve an industriallyrelevant value of thermal conductivity. Here we demonstrate that laminates of hBN exhibit thermal conductivity of up to 20W/m.K, which is significantly larger than that currently used in thermal management. Wealso show that the thermal conductivity of laminates increases with the increasing volumetric mass density, which creates a way of fine tuning its thermal properties.
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