Synthesis and characterization of quaternary La(Sr)S-TaS2 misfit-layered nanotubes

Marco Serra; Erumpukuthickal Ashokkumar Anumol; Dalit Stolovas; Iddo Pinkas; Ernesto Joselevich; Reshef Tenne; Andrey Enyashin; Francis Leonard Deepak

doi:10.3762/bjnano.10.111

Synthesis and characterization of quaternary La(Sr)S-TaS2 misfit-layered nanotubes

Marco Serra, Erumpukuthickal Ashokkumar Anumol, Dalit Stolovas, Iddo Pinkas, Ernesto Joselevich, Reshef Tenne^*, Andrey Enyashin^*, Francis Leonard Deepak^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Misfit-layered compounds (MLCs) are formed by the combination of different lattices and exhibit intriguing structural and morphological characteristics. MLC SrxLa1-xS-TaS2 nanotubes with varying Sr composition (10, 20, 40, and 60 Sr atom %, corresponding to x = 0.1, 0.2, 0.4 and 0.6, respectively) were prepared in the present study and systematically investigated using a combination of high-resolution electron microscopy and spectroscopy. These studies enable detailed insight into the structural aspects of these phases to be gained at the atomic scale. The addition of Sr had a significant impact on the formation of the nanotubes with higher Sr content, leading to a decrease in the yield of the nanotubes. This trend can be attributed to the reduced charge transfer between the rare earth/S unit (LaxSr1-xS) and the TaS2 layer in the MLC which destabilizes the MLC lattice. The influence of varying the Sr content in the nanotubes was systematically studied using Raman spectroscopy. Density functional theory calculations were carried out to support the experimental observations.

Original language	English
Pages (from-to)	1112-1124
Number of pages	13
Journal	Beilstein Journal of Nanotechnology
Volume	10
Early online date	24 May 2019
DOIs	https://doi.org/10.3762/bjnano.10.111
Publication status	Published - 24 May 2019

Funding

We acknowledge the support of the Israel Science Foundation (grant No. 7130970101). We also wish to acknowledge the Perlman Family Foundation, the Kimmel Center for Nanoscale Science Grant No. 43535000350000, and the Irving and Azelle Waltcher Foundations in honor of Prof. M. Levy Grant No. 720821. The activity of A.E. was supported by Act 211 Government of the Russian Federation, contract No.02.A03.21.0006. E.A.A and F.L.D acknowledge the financial support by the N2020: Nanotechnology based functional solutions (NORTE-45-2015-02).

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering
General Materials Science
General Physics and Astronomy

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title = "Synthesis and characterization of quaternary La(Sr)S-TaS2 misfit-layered nanotubes",

abstract = "Misfit-layered compounds (MLCs) are formed by the combination of different lattices and exhibit intriguing structural and morphological characteristics. MLC SrxLa1-xS-TaS2 nanotubes with varying Sr composition (10, 20, 40, and 60 Sr atom %, corresponding to x = 0.1, 0.2, 0.4 and 0.6, respectively) were prepared in the present study and systematically investigated using a combination of high-resolution electron microscopy and spectroscopy. These studies enable detailed insight into the structural aspects of these phases to be gained at the atomic scale. The addition of Sr had a significant impact on the formation of the nanotubes with higher Sr content, leading to a decrease in the yield of the nanotubes. This trend can be attributed to the reduced charge transfer between the rare earth/S unit (LaxSr1-xS) and the TaS2 layer in the MLC which destabilizes the MLC lattice. The influence of varying the Sr content in the nanotubes was systematically studied using Raman spectroscopy. Density functional theory calculations were carried out to support the experimental observations.",

author = "Marco Serra and Anumol, {Erumpukuthickal Ashokkumar} and Dalit Stolovas and Iddo Pinkas and Ernesto Joselevich and Reshef Tenne and Andrey Enyashin and Deepak, {Francis Leonard}",

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doi = "10.3762/bjnano.10.111",

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AU - Serra, Marco

AU - Anumol, Erumpukuthickal Ashokkumar

AU - Stolovas, Dalit

AU - Pinkas, Iddo

AU - Joselevich, Ernesto

AU - Tenne, Reshef

AU - Enyashin, Andrey

AU - Deepak, Francis Leonard

PY - 2019/5/24

Y1 - 2019/5/24

N2 - Misfit-layered compounds (MLCs) are formed by the combination of different lattices and exhibit intriguing structural and morphological characteristics. MLC SrxLa1-xS-TaS2 nanotubes with varying Sr composition (10, 20, 40, and 60 Sr atom %, corresponding to x = 0.1, 0.2, 0.4 and 0.6, respectively) were prepared in the present study and systematically investigated using a combination of high-resolution electron microscopy and spectroscopy. These studies enable detailed insight into the structural aspects of these phases to be gained at the atomic scale. The addition of Sr had a significant impact on the formation of the nanotubes with higher Sr content, leading to a decrease in the yield of the nanotubes. This trend can be attributed to the reduced charge transfer between the rare earth/S unit (LaxSr1-xS) and the TaS2 layer in the MLC which destabilizes the MLC lattice. The influence of varying the Sr content in the nanotubes was systematically studied using Raman spectroscopy. Density functional theory calculations were carried out to support the experimental observations.

AB - Misfit-layered compounds (MLCs) are formed by the combination of different lattices and exhibit intriguing structural and morphological characteristics. MLC SrxLa1-xS-TaS2 nanotubes with varying Sr composition (10, 20, 40, and 60 Sr atom %, corresponding to x = 0.1, 0.2, 0.4 and 0.6, respectively) were prepared in the present study and systematically investigated using a combination of high-resolution electron microscopy and spectroscopy. These studies enable detailed insight into the structural aspects of these phases to be gained at the atomic scale. The addition of Sr had a significant impact on the formation of the nanotubes with higher Sr content, leading to a decrease in the yield of the nanotubes. This trend can be attributed to the reduced charge transfer between the rare earth/S unit (LaxSr1-xS) and the TaS2 layer in the MLC which destabilizes the MLC lattice. The influence of varying the Sr content in the nanotubes was systematically studied using Raman spectroscopy. Density functional theory calculations were carried out to support the experimental observations.

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Synthesis and characterization of quaternary La(Sr)S-TaS2 misfit-layered nanotubes

Abstract

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