Graphene oxide: synthesis method and oxidation influence on the fluorescence characteristic times

POSTER

Abstract

The effect of oxidation (Ox) on the characteristic fluorescence times (τ1, τ2) of graphene samples is presented here. Graphene Oxide (GO) samples were synthesized by pyrolysis method. The Ox of the samples was estimated from 9.4 to 16.6 %, employing EDS. The τ1 and τ2 were measured by TRPL. Results revealed linear behavior in the τ1(Ox) and τ2(Ox) and these were attributed to radiative processes with impurities and the radiative transitions from to states; respectively. These results suggest that pyrolytic GO are excellent candidate materials to applications, as fluorescence bio-markers.

*This work was funded in part by Universidad del Quindío, MinCiencias Project SGR BPIN 2020000100600 internal code 1112 and the OMICAS Project.

Presenters

  • Jhon S Useche

    • Quindio

Authors

  • Jhon S Useche

    • Quindio

  • J. J. Prias-Barragan

    • Universidad del Quindío
    • Universidad del Quindio
    • Interdisciplinary Institute of Sciences, Doctoral Program in Physical Science and Electronic Instrumentation Program at Universidad del Quindío, Colombia, 630004.

  • Gerardo Fonthal

    • Universidad del Quindio