Electron-doping-enhanced trion formation in monolayer molybdenum disulfide functionalized with cesium carbonate

• Main Authors: Lin, Jia Dan, Han, Cheng, Wang, Fei, Wang, Rui, Xiang, Du, Qin, Shiqiao, Zhang, Xue-Ao, Wang, Li, Zhang, Hua, Wee, Andrew Thye Shen, Chen, Wei
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Engineering::Materials::Nanostructured materials
• Online Access: https://hdl.handle.net/10356/103316; http://hdl.handle.net/10220/24468
• Institution: Nanyang Technological University

We report effective and stable electron doping of monolayer molybdenum disulfide (MoS2) by cesium carbonate (Cs2CO3) surface functionalization. The electron charge carrier concentration in exfoliated monolayer MoS2 can be increased by about 9 times after Cs2CO3 functionalization. The n-type doping e...