Chemical vapor deposition growth of large-area molybdenum disulphide (MoS2) dendrites
Year: 2024
Type: article
Abstract: Molybdenum disulphide (MoS 2 ) has emerged as a popular transition metal dichalcogenide (TMDC) in the recent decade because of its potential applications in electronic devices, optoelectronics, and fuel cells. Specifically, dendritic MoS 2 has been shown to efficiently catalyse various hydrogen evolution reactions . We report the growth of dendritic MoS 2 flakes on SiO 2 /Si wafers using a sophisticated atmospheric pressure chemical vapor deposition (APCVD) system. High-resolution optical microscopy reveals a morphology comprising different star-shaped dendrites, in addition to large MoS 2 domains, which merge to form a continuous film. Our observations reveal that the dendrites originate from the nucleation centre of a monolayer MoS 2 island, and their branches develop preferentially along the grain boundaries of this island. Raman spectroscopy , Atomic force microscopy (AFM), Field emission scanning electron microscopy (FESEM), and X-ray photoelectron spectroscopy (XPS) measurements were carried out to characterize the as-grown MoS 2 dendrites and further confirm these observations.
Source: Nano-Structures & Nano-Objects
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,320
OpenAlex ID: W4403557874