Anomalous frequency trends in MoS2 thin films attributed to surface effects

• Main Authors: Luo, Xin, Zhao, Yanyuan, Zhang, Jun, Xiong, Qihua, Quek, Su Ying
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Science::Physics
• Online Access: https://hdl.handle.net/10356/101642; http://hdl.handle.net/10220/18747
• Institution: Nanyang Technological University

The layered dichalcogenide MoS2 has many unique physical properties in low dimensions. Recent experimental Raman spectroscopies report an anomalous blue shift of the in-plane E12g mode with decreasing thickness, a trend that is not understood. Here, we combine experimental Raman scattering and theor...