Vibrational Property of α-Borophene Determined by Tip-Enhanced Raman Spectroscopy

Autor:	Ping Zhang, Xirui Tian, Shaoxiang Sheng, Chen Ma, Linjie Chen, Baojie Feng, Peng Cheng, Yiqi Zhang, Lan Chen, Jin Zhao, Kehui Wu
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	borophene vibrational modes tip-enhanced Raman spectroscopy scanning tunneling microscopy density functional theory calculations Organic chemistry QD241-441
Zdroj:	Molecules, Vol 27, Iss 3, p 834 (2022)
Druh dokumentu:	article
ISSN:	1420-3049
DOI:	10.3390/molecules27030834
Popis:	We report a Raman characterization of the α borophene polymorph by scanning tunneling microscopy combined with tip-enhanced Raman spectroscopy. A series of Raman peaks were discovered, which can be well related with the phonon modes calculated based on an asymmetric buckled α structure. The unusual enhancement of high-frequency Raman peaks in TERS spectra of α borophene is found and associated with its unique buckling when landed on the Ag(111) surface. Our paper demonstrates the advantages of TERS, namely high spatial resolution and selective enhancement rule, in studying the local vibrational properties of materials in nanoscale.
Databáze:	Directory of Open Access Journals
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