Abstract
We report the synthesis of yellow luminescent carbon quantum dots (CDQs; size: 2–9 nm) whose surface was functionalized with polyethylene glycol (PEG-6000) using a novel low-pressure microwave solvothermal method (MWS) that yielded highly emitting CQDs with quantum yields up to 61.1 % at λem =580 nm. The resulting quantum dots were characterized by 500-MHz 1H- and 13C-NMR, by FT-IR, UV–vis and photoluminescence spectroscopies, by XRD and XPS, by TEM microscopy, and by dynamic light scattering (DLS) techniques. A comparison between the MWS method and the conventional autoclave solvothermal (CAS) method demonstrated significant advantages of the novel MWS methodology, which can find further applications in studies of state-of-the-art syntheses of CQDs, in particular, and potentially other quantum dots, in general.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Photochemistry and Photobiology A: Chemistry
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
