Coupling and Interlayer Exciton in Twist-Stacked WS2 Bilayers

• Main Authors: Zheng, Shoujun, Sun, Linfeng, Zhou, Xiaohao, Liu, Fucai, Liu, Zheng, Shen, Zexiang, Fan, Hong Jin
• Other Authors: School of Materials Science and Engineering
• Format: Article
• Language: English
• Published: 2016
• Subjects: 2D materials; transition metal dichalcogenides; interlayer coupling; interlayer exciton
• Online Access: https://hdl.handle.net/10356/82791; http://hdl.handle.net/10220/40340
• Institution: Nanyang Technological University

Interlayer electronic and mechanical couplings of transitional metal dichalcogenides (TMDs) due to Van der Waals force determine their band structure and Raman modes evolution, respectively. We have synthesized twist-stacked WS2 bilayers with twist angles of 0°, 13°, 30°, 41°, 60°, and 83° via ch...