ArticleNanoscale advances2021
Photoluminescence investigations of sulfur quantum dots synthesized by a bubbling-assisted strategy.
Article in Nanoscale advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 25 citations in OpenAlex.
- Bright Light Emission from Deep Energy States.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Biosynthesis of sulfur quantum dots and cerium oxide nanoparticles for bioimaging and reactive oxygen species modulation in Y79 retinoblastoma cancer cells.BioImpacts : BI · 2025Article
- One-pot synthesis of robust dendritic sulfur quantum dots for two-photon fluorescence imaging and "off-on" detection of hydroxyl radicals and ascorbic acid.Nanoscale advances · 2022Article
- Research Update of Emergent Sulfur Quantum Dots in Synthesis and Sensing/Bioimaging Applications.Molecules (Basel, Switzerland) · 2022Review
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Authors and funding
9 authors at 2 institutions in 3 countries.
Funding
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Abstract
Sulfur quantum dots (S-dots) emerge as promising luminescent materials owing to their remarkable optical properties. However, the mechanisms of their formation and photoluminescence remain concealed. We reveal these mechanisms by the bubbling-assisted synthesis and spectroscopic study of S-dots formed from sulfur ions produced by the alkaline oxidation of bulk sulfur under the passivation of PEG. The emission colour of the S-dots depends on the size, explained by the quantum confinement effect. The dots' luminescent quantum efficiency is strongly affected by the surface sulfur species, which is optimized by the proper surface oxidation. The simple synthesis, excellent luminescence properties, and metal-free nature attract S-dots to optoelectronic and electroluminescence applications.
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