Direct observation of ultrafast carrier coupling dynamics in monolayer graphene/metal system

Yang Lu,Xin Tan,Yanzheng Du,Donglin Ma,Weigang Ma

International Journal of Heat and Mass Transfer（2022）

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摘要

•Femtosecond laser pump-probe technique measures the reflectivity changes of graphene/copper system.•A model assuming phonon-phonon coupling at graphene/copper interface is built and validated by the experiment.•Establish a new research paradigm to directly study the carrier coupling dynamics between 2D materials and substrates.

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关键词

Two-dimensional materials,Ultrafast carrier dynamics,Femtosecond laser pump-probe measurement

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