Presentation Information
[7a-P05-52]Synthesis of 1T-MoS2 by caffeine intercalation
〇Ryunosuke Tange1, Seiya Yokokura1,2, Hiroki Waizumi1,2, Tosihiro Shimada1,2 (1.CSE. Hokkaido Univ., 2.Eng. Hokkaido Univ.)
Keywords:
Transition metal dichalcogenide,MoS2,Hydrothermal synthesis
Molybdenum disulfide (MoS2), a member of the transition metal dichalcogenides (TMDCs), possesses a layered structure. Its thermodynamically stable 2H phase exhibits semiconducting properties, while a metallic 1T phase also exists and is of interest due to its high electrical conductivity and potential applications. The 1T phase is typically synthesized using strong reducing agents, which may cause structural damage and pose safety concerns. In this study, we focused on amine compounds as relatively mild electron donors. By intercalating caffeine into the interlayer spaces of MoS2, we aimed to induce local formation of the 1T phase via electron donation, thereby establishing a safer synthesis route.