Revealing the interlayer van der Waals coupling of bi-layer and tri-layer MoS2 using terahertz coherent phonon spectroscopy

Revealing the interlayer van der Waals coupling of bi-layer and tri-layer MoS2 using terahertz coherent phonon spectroscopy

In this research, we applied THz coherent phonon spectroscopy to optically probe the vibrational modes of the epitaxially-grown bi-layer and tri-layer MoS2 on sapphire substrate. The layers’ THz vibration is displacively stimulated and temporally retrieved by near-UV femtosecond laser pulses, reveal...

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Bibliographic Details
Main Authors: Peng-Jui Wang, Po-Cheng Tsai, Zih-Sian Yang, Shih-Yen Lin, Chi-Kuang Sun
Format: Article
Language:English
Published: Elsevier 2022-12-01
Series:Photoacoustics
Subjects:
MoS2
Van der Waals
Lattice vibration
Breathing mode
THz photoacoustic spectroscopy
Metal sulfurization
Online Access:http://www.sciencedirect.com/science/article/pii/S2213597922000775

Internet

http://www.sciencedirect.com/science/article/pii/S2213597922000775

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