Keyword Suggestions

O5.03 - Phase Engineering in 2D Transition Metal Dischalcogenides 
April 8, 2015   2:15pm - 2:45pm
  Synced Audio / Video / Slides

Two-dimensional transition metal dichalcogenides (2D TMDs) � whose generalized formula is MX2, where M is a transition metal of groups 4�7 and X is a chalcogen � exhibit versatile chemistry and consist of a family of over 40 compounds that range from complex metals to semiconductors to insulator. Complex metal TMDs assume the 1T phase where the transition metal atom coordination is octahedral. The 2H phase is stable in semiconducting TMDs where the coordination of metal atoms is trigonal prismatic. We have been studying the 1T phase in semiconducting TMDs. In particular, we have focused on mechanisms involved in inducing the meta-stable 1T phase, kinetics of phase transformation and fundamental structural and electronic properties. We have implemented phase-engineered materials as hydrogen evolution reaction (HER) catalysts and as low resistance contact electrodes in electronic devices. We have also exploited the metallic nature of the 1T phase to functionalize a variety of TMDs. The attachment of functional groups leads to dramatic changes in the opto-electronic properties of the material.

Average Rating: (1 Rating)
  Was great, surpassed expectations, and I would recommend this
  Was good, met expectations, and I would recommend this
  Was okay, met most expectations
  Was okay but did not meet expectations
  Was bad and I would not recommend this

Tutorial K: Synthesis, Properties and Applications of Graphene
Wafer Scale Monolayer MoS2 and WS2 for High Performance Electronics
In Situ Transmission Electron Microscopy
Essentials of Getting Your Work Published
2D Transition Metal Dichalcogenides