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<p>Carbon quantum dots, also known as CQDs were created and carefully calculated in order to research their optical performance. CQDs showed a strong absorption peak at 240&#xa0;nm, indicating π-π* electronic transitions in the united carbon framework. Under UV light excitement, the CQDs generated a distinct &amp; bright photoluminescence emission centered at 485&#xa0;nm. This emission is blue-green (cyan) in the visible color spectrum &amp; appears crisp and monochromatic while illuminated by UV light. Chromaticity analysis detect coordinates of (0.05, 0.49), placing the emission squarely in the blue zone of the CIE 1931 chromatic diagram. These together with exceptional photo stability, high-performance fluorescent marking systems, qualities, demonstrate CQDs’ significant potential for use in advanced applications that include biological imaging and optical electronics. The findings show that CQDs are a potential class of nanomaterials for possible future photonics applications. Their uses in a variety of research projects, including drug/gene delivery, conversion of energy and storage, bio sensing, bio imaging, electrochemical sensing, and more recently, corrosion inhibition applications, are heavily emphasized.</p>

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Light generation from the carbon quantum dots illuminated by UV source

  • 期刊论文

  • 发表日期：

    2026年5月31日

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  • Estabraq Abbas Abed,
  • Omar A. Ibrahim,
  • Taqwa Yaareb Yousif,
  • Ghufran Mohammed Jassam

摘要

Carbon quantum dots, also known as CQDs were created and carefully calculated in order to research their optical performance. CQDs showed a strong absorption peak at 240 nm, indicating π-π* electronic transitions in the united carbon framework. Under UV light excitement, the CQDs generated a distinct & bright photoluminescence emission centered at 485 nm. This emission is blue-green (cyan) in the visible color spectrum & appears crisp and monochromatic while illuminated by UV light. Chromaticity analysis detect coordinates of (0.05, 0.49), placing the emission squarely in the blue zone of the CIE 1931 chromatic diagram. These together with exceptional photo stability, high-performance fluorescent marking systems, qualities, demonstrate CQDs’ significant potential for use in advanced applications that include biological imaging and optical electronics. The findings show that CQDs are a potential class of nanomaterials for possible future photonics applications. Their uses in a variety of research projects, including drug/gene delivery, conversion of energy and storage, bio sensing, bio imaging, electrochemical sensing, and more recently, corrosion inhibition applications, are heavily emphasized.