Tip-enhanced photoluminescence spectroscopy of monolayer MoS 2
Tip-enhanced photoluminescence spectroscopy of monolayer MoS 2
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DOI：
10.1364/prj.5.000745
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发表时间：
2017-12
影响因子：
7.6
通讯作者：
Lingyan Meng;Mengtao Sun
中科院分区：
文献类型：
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作者：
Lingyan Meng;Mengtao Sun
探测二硫化钼（MoS2）的光学性质对其在等离子体增强光谱、催化剂、传感和光电子器件中的应用至关重要。本文利用尖端增强光谱（TES）理论研究了单层二硫化钼的拉曼和荧光特性。在强耦合TES系统中，通过优化尖端- mos2膜的距离，拉曼增强因子和荧光增强因子可分别高达4.5×108和3.3×103。我们的理论结果不仅有助于深入理解单层二硫化钼的TES性质，也为这种新型二维材料的应用提供了更好的指导。
Probing the optical properties of molybdenum disulfide (MoS2) is vital to its application in plasmon-enhanced spectroscopy, catalysts, sensing, and optoelectronic devices. In this paper, we theoretically studied the Raman and fluorescence properties of monolayer MoS2 using tip-enhanced spectroscopy (TES). In the strong-coupling TES system, the Raman and fluorescence enhancement factors can be turned to as high as 4.5×108 and 3.3×103, respectively, by optimizing the tip–MoS2-film distance. Our theoretical results not only help to deeply understand the TES properties of monolayer MoS2, but also provide better guidance on the applications of the novel two-dimensional material.