Tip-enhanced photoluminescence spectroscopy of monolayer MoS2

被引：34
|
作者：
Meng, Lingyan [1 ]
Sun, Mengtao [2 ,3 ]
机构：
[1] Qufu Normal Univ, Coll Phys & Engn, Qufu 273165, Peoples R China
[2] Univ Sci & Technol Beijing, Sch Math & Phys, Beijing Key Lab Magnetophotoelect Composite & Int, Beijing 100083, Peoples R China
[3] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, POB 603-146, Beijing 100190, Peoples R China
来源：
PHOTONICS RESEARCH | 2017年 / 5卷 / 06期
基金：
中国国家自然科学基金;
关键词：
RAMAN; FLUORESCENCE; SURFACE;
D O I：
10.1364/PRJ.5.000745
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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 x 10(8) and 3.3 x 10(3), 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. (C) 2017 Chinese Laser Press
引用
收藏
页码：745 / 749
页数：5
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