Vertical Heterostructure of SnS–MoS<sub>2</sub> Synthesized by Sulfur-Preloaded Chemical Vapor Deposition
Mengjuan Diao, Hui Li, Ruipeng Hou, Ying Liang, Jun Wang, Zhishan Luo, Zhipeng Huang, Chi Zhang
Abstract
We synthesize a vertical heterostructure (HS) between tin sulfide (SnS) and molybdenum sulfide (MoS2) by chemical vapor deposition based on the preferential adsorption of sulfur on MoS2. Most of the SnS grains nucleate on MoS2 nanosheets, formatting partially stacked HS with large overlapping regions. Photoluminescence quenching of MoS2 is observed and illustrates effective charge separation in HS. The HS shows increased reverse saturable absorption relative to MoS2 and SnS. The preferential adsorption of sulfur powders on MoS2 and HS growth reported herein will provide a promising approach to the synthesis of other two-dimensional HS.
Topics & Concepts
Materials scienceHeterojunctionChemical vapor depositionSulfurMolybdenum disulfideSulfidePhotoluminescenceAdsorptionChemical engineeringDeposition (geology)NucleationQuenching (fluorescence)Inorganic chemistryNanotechnologyOptoelectronicsPhysical chemistryOpticsOrganic chemistryMetallurgyChemistryPaleontologyEngineeringBiologyPhysicsSedimentFluorescence2D Materials and ApplicationsPerovskite Materials and ApplicationsMXene and MAX Phase Materials