YS-TaS2and YxLa1- xS-TaS2(0 ≤ x ≤ 1) Nanotubes: A Family of Misfit Layered Compounds

Simon Hettler, M. B. Sreedhara, Marco Serra, Sudarson S. Sinha, Ronit Popovitz-Biro, Iddo Pinkas, Andrey N. Enyashin*, Reshef Tenne*, Raul Arenal*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We present the analysis of a family of nanotubes (NTs) based on the quaternary misfit layered compound (MLC) YxLa1-xS-TaS2. The NTs were successfully synthesized within the whole range of possible compositions via the chemical vapor transport technique. In-depth analysis of the NTs using electron microscopy and spectroscopy proves the in-phase (partial) substitution of La by Y in the (La,Y)S subsystem and reveals structural changes compared to the previously reported LaS-TaS2 MLC-NTs. The observed structure can be linked to the slightly different lattice parameters of LaS and YS. Raman spectroscopy and infrared transmission measurements reveal the tunability of the plasmonic and vibrational properties. Density-functional theory calculations showed that the YxLa1-xS-TaS2 MLCs are stable in all compositions. Moreover, the calculations indicated that substitution of La by Sc atoms is electronically not favorable, which explains our failed attempt to synthesize these MLC and NTs thereof.

Original languageEnglish
Pages (from-to)5445-5458
Number of pages14
JournalACS Nano
Issue number5
StatePublished - 26 May 2020
Externally publishedYes


  • Raman spectroscopy
  • charge transfer
  • density-functional theory
  • electron microscopy
  • electron spectroscopy
  • inorganic nanotubes
  • misfit layered compounds


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