Synthesis of 2D multilayer molybdenum disulfide and graphene using a rapid thermal annealing system

Abstract

Multilayer two-dimensional (2D) materials, such as molybdenum disulfide (MoS₂), exhibit enhanced mechanical strength and electron mobility while maintaining robustness in device fabrication processes. This study aims to develop and apply a fast annealing technique using a carbon-fiber-based system to synthesize multilayer MoS₂ films and graphene, focusing on improving the synthesis process's efficiency and scalability. The methodology involves preparing films via thermolysis of ammonium tetrathiomolybdate and silicon carbide, followed by characterization using microscopy and spectroscopy. Memristors fabricated from the multilayer MoS₂ showed reliable operation at low biases (<1.5 V). This method offers a broad process window, reduces synthesis time, and increases power efficiency. The findings highlight its potential to facilitate the transition of 2D materials from laboratory research to large-scale production.