Structure and optical properties of 2D layered MoS2 crystals implemented with novel friction induced crystal growth

被引：5

作者：

Tanabe, Tadao ^{[1
]}

Ito, Takafumi ^{[1
]}

Oyama, Yutaka ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Aramaki Aza Aoba 6-6-11-1021, Sendai, Miyagi 9808579, Japan

来源：

AIP ADVANCES | 2018年 / 8卷 / 03期

关键词：

MONOLAYER MOS2;

D O I：

10.1063/1.5022247

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We used X-ray diffraction, and Raman and photoluminescence (PL) spectroscopies to examine the structure and optical properties of molybdenum disulfide (MoS2) crystals grown by friction at the interface between two materials. MoS2 is produced chemically from molybdenum dithiocarbamates (MoDTC) in synthetic oil under sliding friction conditions. The X-ray diffraction (XRD) patterns indicate that the structure of the MoS2 is layered with the c-axis perpendicular to the surface. The MoS2 layer was formed on stainless steel and germanium by friction at the interface between these materials and high carbon chromium bearing steel. The number of layers is estimated to be N (N > 6) from the distance between the Raman frequencies of the E-2g(1) and A(1g) modes. For MoS2 grown on stainless steel, exciton peak is observed in the PL spectrum at room temperature. These results show that this friction induced crystal growth method is viable for synthesizing atomic layers of MoS2 at solid surfaces. (c) 2018 Author(s).

引用

页数：6

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