NMR and EPR study of cubic π-phase SnS semiconductor nanoparticles

A. M. Panich; A. I. Shames; R. E. Abutbul; N. Maman; S. D. Goren; Y. Golan

doi:10.1016/j.matchemphys.2020.123206

NMR and EPR study of cubic π-phase SnS semiconductor nanoparticles

A. M. Panich, A. I. Shames, R. E. Abutbul, N. Maman, S. D. Goren, Y. Golan

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

2 Scopus citations

Abstract

We report an ¹¹⁹Sn nuclear magnetic resonance (NMR) and electron paramagnetic resonance (EPR) study of cubic π-phase SnS semiconductor nanoparticles. The data are compared with orthorhombic α-SnS. The NMR spectrum of cubic SnS reveals two inequivalent tin atoms in its crystal structure. The spin-lattice relaxation time of ¹¹⁹Sn nuclei in the cubic phase is much longer than that in the orthorhombic phase, indicating that the former is mainly governed by Raman scattering, while the latter is dominated by interaction of nuclear spins with unpaired electron spins of paramagnetic defects. This is supported by EPR measurements showing much larger content of paramagnetic defects in the orthorhombic phase compared with the cubic phase. The study provides novel research findings on the physical properties of the newly discovered cubic π-SnS, which is an emerging semiconducting material system for various applications.

Original language	English
Article number	123206
Journal	Materials Chemistry and Physics
Volume	250
DOIs	https://doi.org/10.1016/j.matchemphys.2020.123206
State	Published - 1 Aug 2020

Keywords

Cubic SnS phase
EPR
NMR
Nanostructural materials
Relaxation

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

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10.1016/j.matchemphys.2020.123206

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title = "NMR and EPR study of cubic π-phase SnS semiconductor nanoparticles",

abstract = "We report an 119Sn nuclear magnetic resonance (NMR) and electron paramagnetic resonance (EPR) study of cubic π-phase SnS semiconductor nanoparticles. The data are compared with orthorhombic α-SnS. The NMR spectrum of cubic SnS reveals two inequivalent tin atoms in its crystal structure. The spin-lattice relaxation time of 119Sn nuclei in the cubic phase is much longer than that in the orthorhombic phase, indicating that the former is mainly governed by Raman scattering, while the latter is dominated by interaction of nuclear spins with unpaired electron spins of paramagnetic defects. This is supported by EPR measurements showing much larger content of paramagnetic defects in the orthorhombic phase compared with the cubic phase. The study provides novel research findings on the physical properties of the newly discovered cubic π-SnS, which is an emerging semiconducting material system for various applications.",

keywords = "Cubic SnS phase, EPR, NMR, Nanostructural materials, Relaxation",

author = "Panich, {A. M.} and Shames, {A. I.} and Abutbul, {R. E.} and N. Maman and Goren, {S. D.} and Y. Golan",

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year = "2020",

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doi = "10.1016/j.matchemphys.2020.123206",

language = "English",

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T1 - NMR and EPR study of cubic π-phase SnS semiconductor nanoparticles

AU - Panich, A. M.

AU - Shames, A. I.

AU - Abutbul, R. E.

AU - Maman, N.

AU - Goren, S. D.

AU - Golan, Y.

PY - 2020/8/1

Y1 - 2020/8/1

N2 - We report an 119Sn nuclear magnetic resonance (NMR) and electron paramagnetic resonance (EPR) study of cubic π-phase SnS semiconductor nanoparticles. The data are compared with orthorhombic α-SnS. The NMR spectrum of cubic SnS reveals two inequivalent tin atoms in its crystal structure. The spin-lattice relaxation time of 119Sn nuclei in the cubic phase is much longer than that in the orthorhombic phase, indicating that the former is mainly governed by Raman scattering, while the latter is dominated by interaction of nuclear spins with unpaired electron spins of paramagnetic defects. This is supported by EPR measurements showing much larger content of paramagnetic defects in the orthorhombic phase compared with the cubic phase. The study provides novel research findings on the physical properties of the newly discovered cubic π-SnS, which is an emerging semiconducting material system for various applications.

AB - We report an 119Sn nuclear magnetic resonance (NMR) and electron paramagnetic resonance (EPR) study of cubic π-phase SnS semiconductor nanoparticles. The data are compared with orthorhombic α-SnS. The NMR spectrum of cubic SnS reveals two inequivalent tin atoms in its crystal structure. The spin-lattice relaxation time of 119Sn nuclei in the cubic phase is much longer than that in the orthorhombic phase, indicating that the former is mainly governed by Raman scattering, while the latter is dominated by interaction of nuclear spins with unpaired electron spins of paramagnetic defects. This is supported by EPR measurements showing much larger content of paramagnetic defects in the orthorhombic phase compared with the cubic phase. The study provides novel research findings on the physical properties of the newly discovered cubic π-SnS, which is an emerging semiconducting material system for various applications.

KW - Cubic SnS phase

KW - EPR

KW - NMR

KW - Nanostructural materials

KW - Relaxation

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U2 - 10.1016/j.matchemphys.2020.123206

DO - 10.1016/j.matchemphys.2020.123206

M3 - Article

AN - SCOPUS:85084821480

SN - 0254-0584

VL - 250

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

M1 - 123206

ER -

NMR and EPR study of cubic π-phase SnS semiconductor nanoparticles

Abstract

Keywords

ASJC Scopus subject areas

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