Researchers Analyse Molybdenum Ditelluride Nanosheet Phase Selectivity nanosheets nanotechnology materials molybdenum wileyinresearch
By Hussain AhmedNov 4 2022Reviewed by Skyla Baily Many research groups are currently focused on the synthesis of MoTe2 nanosheets for device integration in modern electronic applications.
The 1T' phase, which possesses an orthorhombic composition, is the precursor step for accessing remarkable topological features and is of particular relevance as a host for the atomic spin hall phenomenon in individual and multilayered nanosheets. On the other hand, 2H-MoTe2 has significant promise as a 2D layered material in nanoelectronics due to its tiny bandgap, good absorption, and low thermal conductance.
Chemical Vapor Deposition for Producing MoTe2 Nanosheets Mechanical abrasion, chemical emulsification, and physical vapor formation have typically been used to create few-layer TMDs such as MoTe2. However, these approaches have significant disadvantages because of their inaccurate phase control, roughness, unpredictable distribution, and non-uniformity.
Highlights of the Current Study In this study, the researchers conducted a series of chemical vapor deposition experiments to generate MoTe2 nanosheets as a combination of the tellurium intensity gradient and substrate alignment. a) HR-TEM HAADF cross section of a representative MoTe2 nanosheet; single layers are evident and separated by van der Waals spacing; b) line profile across the MoTe2 thickness, where the position of Mo and Te atoms can be elucidated. Image Credit: Tummala, P. P. et al., Advanced Materials Interfaces
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