YS-TaS2 and YxLa1–xS-TaS2 (0 ≤ x ≤ 1) nanotubes: A family of misfit layeredcompounds

Autor: Hettler, S., Sreedhara, M. B., Serra, M., Sinha, S. S., Popovitz-Biro, R., Pinkas, I., Enyashin, A. N., Tenne, R., Arenal, R.
Přispěvatelé: Russian Government, Perlman Family Foundation, Israel Science Foundation, Ministerio de Economía y Competitividad (España), European Commission, German Research Foundation
Rok vydání: 2020
Předmět:
TRANSPORT PROPERTIES
Materials science
NANOTUBES
General Physics and Astronomy
Electron spectroscopy
LANTHANUM
02 engineering and technology
010402 general chemistry
01 natural sciences
Article
IN-DEPTH ANALYSIS
law.invention
Misfit layered compounds
DENSITY-FUNCTIONAL THEORY
symbols.namesake
Charge transfer
law
Lattice (order)
Electron microscopy
General Materials Science
DENSITY FUNCTIONAL THEORY
density-functional theory
IN-PHASE
Spectroscopy
Plasmon
LANTHANUM COMPOUNDS
General Engineering
021001 nanoscience & nanotechnology
0104 chemical sciences
Crystallography
Infrared transmission
Raman spectroscopy
MISFIT-LAYERED COMPOUND
symbols
TUNABILITIES
Density functional theory
VIBRATIONAL PROPERTIES
Electron microscope
TRANSMISSION MEASUREMENTS
0210 nano-technology
Inorganic nanotubes
CHEMICAL VAPOR TRANSPORT
Zdroj: Digital.CSIC. Repositorio Institucional del CSIC
instname
Zaguán: Repositorio Digital de la Universidad de Zaragoza
Universidad de Zaragoza
ACS Nano
Zaguán. Repositorio Digital de la Universidad de Zaragoza
Popis: 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.
A.E. acknowledges the support by Act 211 Government of the Russian Federation, Contract No. 02.A03.21.0006. The support of the Israel Science Foundation (Grant No. 7130970101), Irving and Cherna Moskowitz Center for Nano and Bio-Nano Imaging, and the Perlman Family Foundation and the Kimmel Center for Nanoscale Science (Grant No. 43535000350000) is greatly acknowledged. R.A. gratefully acknowledges the support from the Spanish Ministry of Economy and Competitiveness (MINECO) through Project Grant MAT2016-79776-P (AEI/FEDER, UE) and from the European Union H2020 program “ESTEEM3” (823717). S.H. acknowledges funding by the German Research Foundation (HE 7675/1-1). I.P. is the incumbent of the Sharon Zuckerman Research Fellow Chair.
Databáze: OpenAIRE
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