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

doi:10.1021/acsnano.9b09284

YS-TaS₂and Y_xLa_{1- x}S-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 journal › Article › peer-review

Abstract

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 language	English
Pages (from-to)	5445-5458
Number of pages	14
Journal	ACS Nano
Volume	14
Issue number	5
DOIs	https://doi.org/10.1021/acsnano.9b09284
State	Published - 26 May 2020
Externally published	Yes

Keywords

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

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

abstract = "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.",

keywords = "Raman spectroscopy, charge transfer, density-functional theory, electron microscopy, electron spectroscopy, inorganic nanotubes, misfit layered compounds",

author = "Simon Hettler and Sreedhara, {M. B.} and Marco Serra and Sinha, {Sudarson S.} and Ronit Popovitz-Biro and Iddo Pinkas and Enyashin, {Andrey N.} and Reshef Tenne and Raul Arenal",

note = "Publisher Copyright: {\textcopyright} 2020 American Chemical Society.",

year = "2020",

month = may,

day = "26",

doi = "10.1021/acsnano.9b09284",

language = "אנגלית",

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T2 - A Family of Misfit Layered Compounds

AU - Hettler, Simon

AU - Sreedhara, M. B.

AU - Serra, Marco

AU - Sinha, Sudarson S.

AU - Popovitz-Biro, Ronit

AU - Pinkas, Iddo

AU - Enyashin, Andrey N.

AU - Tenne, Reshef

AU - Arenal, Raul

PY - 2020/5/26

Y1 - 2020/5/26

N2 - 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.

AB - 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.

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KW - charge transfer

KW - density-functional theory

KW - electron microscopy

KW - electron spectroscopy

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KW - misfit layered compounds

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YS-TaS₂and Y_xLa_{1- x}S-TaS₂(0 ≤ x ≤ 1) Nanotubes: A Family of Misfit Layered Compounds

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