2021年4月1日 · The realization of large few-layer SnS flakes allowed us to study key characteristics, including the thickness dependent vibrational properties and in-plane ferroelectricity. Comparison between computed SnS Raman spectra up to 16 layers and experimental spectra provides insight into the evolution …

2011年5月12日 · In the present work, we report the synthesis of SnS nanoparticles by wet chemical method and characterization done using AFM, TEM for size and morphology and XRD for phase identification, followed by detailed optical absorption, photoluminescence and Raman spectroscopic studies addressing the direct and indirect band gap transitions and all the ...

2018年7月5日 · We investigated interlayer phonon modes of mechanically exfoliated few-layer 2H-SnS 2 samples by using room temperature low-frequency micro-Raman spectroscopy. Raman measurements were...

2020年9月4日 · The lattice dynamics and high-temperature structural transition in SnS and SnSe are investigated via inelastic neutron scattering, high-resolution Raman spectroscopy and anharmonic first ...

2020年11月13日 · To maximize the value of SnS 2 in the application design, this paper analyzes the angle-resolved polarized Raman spectra of SnS 2 crystals grown under high-temperature sealing systems.

2022年11月10日 · We observe a strong anisotropy of the in-plane Raman signal in bulk SnS. With the help of ab initio calculations, the vibrational symmetry of each observed Raman mode in the cleaved (00 l)-plane is consistent with the experimental values.

2017年10月17日 · In this work, we have successfully synthesized SnS flakes with different thicknesses and systematically investigated their polarization-dependent Raman properties. It is found that the different Raman mode of SnS shows distinctly anisotropic thickness dependence.

2020年10月30日 · Here, we report hydrothermal synthesis of SnS 2 nanoparticles using stannous chloride dihydrate and thioacetamide as the precursors without any surfactants and by varying the reaction temperature and growth time. The structural, morphological, optical and magnetic properties of the synthesised SnS 2 nanoparticles are discussed in detail.

1977年4月28日 · The Raman spectra of 2H and 4H-SnS 2 and 6Hb-SnSe 2 have been studied at room and liquid nitrogen temperatures. Interpretation of the observed Raman modes is given in terms of the different symmetries of these polytypes and the more important short-range forces involved in determining the energies of the higher-energy phonon modes are ...

2021年9月9日 · We identify the characteristic Raman active phonon modes and their dependence on the number of layers and stacking sequences. The clear separation between surface modes and bulk modes is clarified for SnS thin films. In addition, we have clarified the relation between stacking structures and Raman active modes for bilayer SnS.