1 research outputs found
Stable Sulfuric Vapor Transport and Liquid Sulfur Growth on Transition Metal Dichalcogenides
Transition metal
dichalcogenides (TMDs) are an emergent class of
low-dimensional materials with growing applications in the field of
nanoelectronics. However, efficient methods for synthesizing large
monocrystals of these systems are still lacking. Here, we describe
an efficient synthetic route for a large number of TMDs that were
obtained in quartz glass ampoules by sulfuric vapor transport and
liquid sulfur. Unlike the sublimation technique, the metal enters
the gas phase in the form of molecules, hence containing a greater
amount of sulfur than the growing crystal. We have investigated the
physical properties for a selection of these crystals and compared
them to state-of-the-art findings reported in the literature. The
acquired electronic properties features demonstrate the overall high
quality of single crystals grown in this work as exemplified by CoS2, ReS2, NbS2, and TaS2. This
new approach to synthesize high-quality TMD single crystals can alleviate
many material quality concerns and is suitable for emerging electronic
devices