Mechanical exfoliation and characterization of single- and few-layer nanosheets of WSe2, TaS2, and TaSe2

• Main Authors: Li, Hai, Lu, Gang, Wang, Yanlong, Yin, Zongyou, Cong, Chunxiao, He, Qiyuan, Wang, Lu, Ding, Feng, Yu, Ting, Zhang, Hua
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Engineering::Materials
• Online Access: https://hdl.handle.net/10356/102260; http://hdl.handle.net/10220/19029
• Institution: Nanyang Technological University

Single- and few-layer transition-metal dichalcogenide nanosheets, such as WSe2, TaS2, and TaSe2, are prepared by mechanical exfoliation. A Raman microscope is employed to characterize the single-layer (1L) to quinary-layer (5L) WSe2 nanosheets and WSe2 single crystals with a laser excitation power r...