The Effect of Substrate on Vibrational Properties of Single-Layer MoS2

被引：2

作者：

Golasa, K. ^{[1
]}

Molas, M. R. ^{[2
]}

Nogajewski, K. ^{[2
]}

Grzeszczyk, M. ^{[1
]}

Zinkiewicz, M. ^{[1
]}

Potemski, M. ^{[2
]}

Babinski, A. ^{[1
]}

机构：

[1] Univ Warsaw, Fac Phys, L Pasteura 5, PL-02093 Warsaw, Poland

[2] CNRS UGA UPS INSA EMFL, Lab Natl Champs Magnet Intenses, 25 Rue Martyrs, F-38042 Grenoble, France

来源：

ACTA PHYSICA POLONICA A | 2016年 / 130卷 / 05期

关键词：

METAL; RAMAN;

D O I：

10.12693/APhysPolA.130.1172

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the Raman scattering from single-layer molybdenum disulfide (MoS2) deposited on various substrates: Si/SiO2, hexagonal boron nitride (h-BN), sapphire, as well as suspended. Room temperature Raman scattering spectra are investigated under both resonant (632.8 nm) and non-resonant (514.5 nm) excitations. A rather weak influence of the substrate on the Raman scattering signal is observed. The most pronounced, although still small, is the effect of h-BN, which manifests itself in the change of energy positions of the E' and A(1)' Raman modes of single-layer MoS2. We interpret this modification as originating from van der Waals interaction between the MoS2 and h-BN layers.

引用

页码：1172 / 1175

页数：4

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