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Molecular Foundry

HIGHLIGHTSNew Transition-metal Trichalcogenides Stabilized
December 22, 2020

Scientific Achievement

Top:  STEM image and simulated image of of transition metal trichalcogenide TiTe3 single chain grown inside carbon nanotube.  This material has not been previously synthesized, in bulk or in few-chain form.  Bottom:  Calculated electronic band structure and projected density of states.

Successful synthesis and structural characterization of three new transition metal trichalcogenides, TiTe3, NbTe3, and  VTe3.

Significance and Impact

Nanoconfined growth method allows traditionally unstable materials to be realized

Research Details

  • TiTe3, NbTe3, and VTe3, previously experimentally unknown materials, synthesized within the nanoconfined interior of carbon nanotubes
  • High-resolution STEM imaging reveals atomic structure.
  • Density functional theory (DFT) elucidates electronic structure and mechanical stability of materials
  • Adds to family of 1-D transition metal trichalcogenides that have been created in single- or few-chain form
  • Sets stage for further study of density wave instabilities or topologically non-trivial states
S. Stonemeyer, J. Cain, S. Oh, A. Azizi, M. Elasha, M. Thiel, C. Song, P. Ercius, M. Cohen, and A. Zettl. J. Am. Chem. Soc. (2020) doi:10.1021/jacs.0c10175

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