From bulk to monolayer MoS2 : evolution of Raman scattering

• Main Authors: Baillargeat, Dominique, Li, Hong, Zhang, Qing, Yap, Ray Chin Chong, Tay, Beng Kang, Teo, Edwin Hang Tong, Olivier, Aurelien
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/97030; http://hdl.handle.net/10220/10431
• Institution: Nanyang Technological University

Molybdenum disulfide (MoS2) is systematically studied using Raman spectroscopy with ultraviolet and visible laser lines. It is shown that only the Raman frequencies of and peaks vary monotonously with the layer number of ultrathin MoS2 flakes, while intensities or widths of the peaks vary arbitraril...