Real-time monitoring of phase transitions in π-SnS nanoparticles

Fridman, Helena; Barsheshet, Nir; Kolusheva, Sofiya; Mokari, Taleb; Hayun, Shmuel; Golan, Yuval

doi:10.1039/d3nr00621b

Nanoscale

2023

DOI: 10.1039/d3nr00621b

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Real-time monitoring of phase transitions in π-SnS nanoparticles

Helena Fridman

Nir Barsheshet

Sofiya Kolusheva

et al.

Abstract: While the new cubic phase of tin monosulfide, π-SnS, shows potential for various applications, not much work was focused on the phase transitions, thermal stability, and thermal properties of π-SnS....

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2024

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Cited by 2 publications

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Interplay of structure and superconductivity in α-SnS tuned by pressure

Lv,

Li,

Huang

et al. 2024

Phys. Rev. B

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Interplay of structure and superconductivity in α-SnS tuned by pressure

Lv,

Li,

Huang

et al. 2024

Phys. Rev. B

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Water-Soluble Lead Sulfide Nanoparticles: Direct Synthesis and Ligand Exchange Routes

Pfeffer,

Ezersky,

Kolusheva

et al. 2024

Nanomaterials

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Colloidal semiconductor nanoparticles (NPs) represent an emergent state of matter with unique properties, bridging bulk materials and molecular structures. Their distinct physical attributes, such as bandgap and photoluminescence, are intricately tied to their size and morphology. Ligand passivation plays a crucial role in shaping NPs and determining their physical properties. Ligand exchange (LE) offers a versatile approach to tailoring NP properties, often guided by Pearson’s Hard–Soft Acid–Base theory. Lead sulfide (PbS), a semiconductor of considerable interest, exhibits size-dependent tunable bandgaps from the infrared to the visible range. Here, we present two methods for synthesizing water-soluble, polyvinylpyrrolidone (PVP)-coated PbS NPs. The first involves direct synthesis in an aqueous solution while utilizing PVP as the surfactant for the formation of nano-cubes with a crystal coherence length of ~30 nm, while the second involves LE from octadecylamine-coated PbS truncated nano-cubes to PVP-coated PbS NPs with a crystal coherence length of ~15 nm. Multiple characterization techniques, including X-ray diffraction, transmission electron microscopy, Fourier-transform infrared spectroscopy, and thermal gravimetric analysis, confirmed the results of the synthesis and allowed us to monitor the ligand exchange process. Our findings demonstrate efficient and environmentally friendly approaches for synthesizing PVP-coated PbS NPs.

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Real-time monitoring of phase transitions in π-SnS nanoparticles

Abstract: While the new cubic phase of tin monosulfide, π-SnS, shows potential for various applications, not much work was focused on the phase transitions, thermal stability, and thermal properties of π-SnS....

Cited by 2 publications

References 41 publications

Interplay of structure and superconductivity in α-SnS tuned by pressure

Interplay of structure and superconductivity in α-SnS tuned by pressure

Water-Soluble Lead Sulfide Nanoparticles: Direct Synthesis and Ligand Exchange Routes

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