Photonics Research, 2017, 5 (6): 06000745, Published Online: Dec. 7, 2017  

Tip-enhanced photoluminescence spectroscopy of monolayer MoS2 Download: 689次

Author Affiliations
1 College of Physics and Engineering, Qufu Normal University, Qufu 273165, China
2 Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China
3 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science, P.O. Box 603-146, Beijing 100190, China
Abstract
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.

Lingyan Meng, Mengtao Sun. Tip-enhanced photoluminescence spectroscopy of monolayer MoS2[J]. Photonics Research, 2017, 5(6): 06000745.

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