ArticleRoyal Society open science2025
γ-Radiation-assisted molecular template route: a new hybrid path for facile synthesis of size-dependent optical properties of ZnS quantum dots.
Article in Royal Society open science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- γ-Radiation-assisted molecular template route: a new hybrid path for facile synthesis of size-dependent optical properties of ZnS quantum dots.Royal Society open science · 2025Article
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4 authors.
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Abstract
ZnS is a benign and multi-utility semiconductor with absorption in the UV-vis region of the energy spectrum. Nevertheless, the synthesis of ZnS quantum dots (QDs) with tunable optical properties and a reasonable photoluminescent quantum yield (PLQY) adopting a new hybrid method is highly recognized. The present study involves the simple synthesis of self-capped wurtzite ZnS QDs employing a hybrid method comprising a single-source molecular precursor (SSMP), 2-(dimethylamino)ethanethiolate of zinc(II), and γ-radiation followed by elucidation of the formation mechanism of self-capped ZnS QDs. Here, the SSMP has been γ-irradiated in a solution to yield ZnS QDs of varying size at different radiation doses. The crystal structure, elemental composition, shape and optical properties of pristine self-capped ZnS QDs were assessed by powder X-ray diffraction, energy dispersive X-ray spectroscopy, electron microscopy, UV-vis, photoluminescence and diffused reflectance spectroscopy, respectively. The size-tailored emission maximum and optical band gaps were tweaked to a tune of 417-537 nm and 4.17-4.23 eV by altering the γ-radiation dose with PLQYs realized in the range of 10-24%. Lifetimes of these samples are in the range of 1.69-2.68 and 6.82-34.88 ns for the fast- and slow-decaying components, respectively.
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