Quantifying defects in graphene oxide structures

We investigated the formation of graphite nanocrystals covered with graphite oxide for white light generation. The nanoparticles were formed using cost-efficient oxidation of a carbon-based dye pigment at different temperatures and verified using X-ray diffraction and Raman measurements. Formation of the graphite nanoparticles via thermal annealing was observed, while their light emission increased at higher oxidation temperatures. This was associated with a higher amount of oxygen defect groups. The time-resolved photoluminescence measurements showed linearly faster decays at shorter wavelengths and similar decays at different annealing temperatures. Broadband and linear vs. excitation emission spectra of the particles were found to be suitable for white-light-emitting devices and phosphor markers. The fast photoluminescence decay opens the possibility for the application of nanoparticles in optical wireless communication technology.

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Quantifying defects in graphene oxide structures

Cited by 3 publications

References 54 publications

Negative contribution from defects responsible for low Young's modulus of graphene oxide at small defect densities

Negative contribution from defects responsible for low Young's modulus of graphene oxide at small defect densities

Characterization of robocasted graphene and graphene oxide reinforced scaffold structures for bone regeneration

Oxidized Graphite Nanocrystals for White Light Emission

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