Research Article

|

2017, 10(9): 2944–2953

|

https://doi.org/10.1007/s12274-017-1504-8

MoS2-graphene in-plane contact for high interfacial thermal conduction

Xiangjun Liu§, Junfeng Gao§, Gang Zhang (*), and Yong-Wei Zhang

View Author's information

Institute of High Performance Computing, A*STAR, Singapore 138632, Singapore
§ These authors contributed equally to this work.

Keywords: MoS2, graphene, interfacial thermal conductance, thermal management
Full article PDF
Cite this article(Endnote)
Share this article
Metric

views: 136

Citations: 0

  • Abstract
  • References
ABSTRACT Recent studies have indicated that two-dimensional (2D) MoS2 exhibits low in-plane and inter-plane thermal conductivities. This poses a significant challenge to heat management in MoS2-based electronic devices. To address this challenge, we have designed MoS2-graphene interfaces that fully utilize graphene, a 2D material that exhibits very high thermal conductivity. First, we performed ab initio atomistic simulations to understand bonding and structural stability at the interfaces. The interfaces that we designed, which were connected via strong covalent bonds between Mo and C atoms, were energetically stable. We then performed molecular dynamics simulations to investigate interfacial thermal conductance in these materials. Surprisingly, the interfacial thermal conductance was high and comparable to those of covalently bonded graphene-metal interfaces. Importantly, each interfacial Mo–C bond served as an independent thermal channel, enabling modulation of the interfacial thermal conductance by controlling the Mo vacancy concentration at the interface. The present work provides a viable heat management strategy for MoS2-based electronic devices.
Related Article
Cite this article

MoS2-graphene in-plane contact for high interfacial thermal conduction. Nano Res. 2017, 10(9): 2944–2953 https://doi.org/10.1007/s12274-017-1504-8

Download citation