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Ni-doped ZnS nanoparticles encapsulated in polypropylene glycol: exploring synthesis, structural integrity, optical behavior and thermal stability.

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Title: Ni-doped ZnS nanoparticles encapsulated in polypropylene glycol: exploring synthesis, structural integrity, optical behavior and thermal stability.
Authors: Mohan, R.1 (AUTHOR) rrmohan9@gmail.com, Jayamoorthy, K.2 (AUTHOR)
Source: Journal of Materials Science: Materials in Electronics. Sep2025, Vol. 36 Issue 25, p1-14. 14p.
Abstract: In this work, we report the successful synthesis of Ni-doped ZnS nanoparticles encapsulated with polypropylene glycol (PPG) via a facile chemical precipitation technique. This study investigates the dual role of PPG as both a capping and stabilizing agent, with varying concentrations used to tailor nanoparticle size, surface properties, and luminescent behavior. Structural characterization confirmed the formation of cubic ZnS:Ni2+ nanoparticles, with an average crystallite size of ~ 3.12 nm at optimal PPG concentration (0.6 mL). The incorporation of Ni2+ ions and the presence of PPG significantly influenced the photoluminescence and UV–visible absorption properties, demonstrating a clear quantum confinement effect. Surface morphology and thermal analysis further validated the enhanced stability and reduced agglomeration due to PPG encapsulation. These findings present a promising route for designing stable, tunable semiconductor nanomaterials with potential applications in optoelectronic devices, sensors, and light-emitting systems. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:In this work, we report the successful synthesis of Ni-doped ZnS nanoparticles encapsulated with polypropylene glycol (PPG) via a facile chemical precipitation technique. This study investigates the dual role of PPG as both a capping and stabilizing agent, with varying concentrations used to tailor nanoparticle size, surface properties, and luminescent behavior. Structural characterization confirmed the formation of cubic ZnS:Ni2+ nanoparticles, with an average crystallite size of ~ 3.12 nm at optimal PPG concentration (0.6 mL). The incorporation of Ni2+ ions and the presence of PPG significantly influenced the photoluminescence and UV–visible absorption properties, demonstrating a clear quantum confinement effect. Surface morphology and thermal analysis further validated the enhanced stability and reduced agglomeration due to PPG encapsulation. These findings present a promising route for designing stable, tunable semiconductor nanomaterials with potential applications in optoelectronic devices, sensors, and light-emitting systems. [ABSTRACT FROM AUTHOR]
ISSN:09574522
DOI:10.1007/s10854-025-15568-3