Ultrafast Phonon Dynamics in Graphene-hBN Structures

Dheeraj Golla; Alexandra Brasington; Brian J. LeRoy; Arvinder Sandhu

doi:10.1364/CLEO_AT.2017.JTh2A.20

Conference on Lasers and Electro-Optics
OSA Technical Digest (online) (Optica Publishing Group, 2017),
paper JTh2A.20
•https://doi.org/10.1364/CLEO_AT.2017.JTh2A.20

Ultrafast Phonon Dynamics in Graphene-hBN Structures

Dheeraj Golla, Alexandra Brasington, Brian J. LeRoy, and Arvinder Sandhu

CLEO: Science and Innovations 2017

San Jose, California United States
14–19 May 2017
ISBN: 978-1-943580-27-9

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Thursday Posters Session (JTh2A)

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D. Golla, A. Brasington, B. J. LeRoy, and A. Sandhu, "Ultrafast Phonon Dynamics in Graphene-hBN Structures," in Conference on Lasers and Electro-Optics, OSA Technical Digest (online) (Optica Publishing Group, 2017), paper JTh2A.20.

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Abstract

We present ultrafast pump-probe measurements that show fast relaxation of carriers in graphene-hexagonal Boron Nitride (hBN) heterostructures due to the high interfacial thermal conductance of the graphene-hBN interface. This warrants the use of hBN as a substrate for high powered graphene devices.

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