Abstract
This paper provides an effective synthesis and size sorting approach to graphene oxide quantum dots (GOQDs) with size-dependent optical properties. GOQDs were first prepared through oxidation of commercially available stacked graphene nanofibers. The as-synthesized GOQDs were then sorted into different sizes by differential velocity centrifugation. The optical properties of size-sorted GOQDs were characterized by UV-vis-NIR and photoluminescence spectroscopies. It was found that the size of the GOQDs not only shifted the fluorescence colour, but also tuned the quantum yields. Compared with the micro sized Graphene Oxide, the GOQD exhibited sharp, stable, and relatively high quantum yield fluorescence.
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
