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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/8012
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dc.contributor.authorNancy, Parvathy-
dc.contributor.authorJoy, Nithin-
dc.contributor.authorValluvadasan, Sivakumaran-
dc.contributor.authorPhilip, Reji-
dc.contributor.authorThomas, Sabu-
dc.contributor.authorAntoine, Rodolphe-
dc.contributor.authorKalarikkal, Nandakumar-
dc.date.accessioned2022-12-03T05:16:00Z-
dc.date.available2022-12-03T05:16:00Z-
dc.date.issued2022-11-17-
dc.identifier.citationMolecules, 2022, Vol. 27, p7988en_US
dc.identifier.issn1420-3049-
dc.identifier.urihttp://hdl.handle.net/2289/8012-
dc.descriptionOpen Accessen_US
dc.description.abstractGraphene quantum dots (GQDs), the zero dimensional (0D) single nanostructures, have many exciting technological applications in diversified fields such as sensors, light emitting devices, bio imaging probes, solar cells, etc. They are emerging as a functional tool to modulate light by means of molecular engineering due to its merits, including relatively low extend of loss, large outstretch of spatial confinement and control via doping, size and shape. In this article, we present a one pot, facile and ecofriendly synthesis approach for fabricating GQDs via pulsed laser irradiation of an organic solvent (toluene) without any catalyst. It is a promising synthesis choice to prepare GQDs due to its fast production, lack of byproducts and further purification, as well as the control over the product by accurate tuning of laser parameters. In this work, the second (532 nm) and third harmonic (355 nm) wavelengths of a pulsed nanosecond Nd:YAG laser have been employed for the synthesis. It has been found that the obtained GQDs display fluorescence and is expected to have potential applications in optoelectronics and light-harvesting devices. In addition, nonlinear optical absorption of the prepared GQDs was measured using the open aperture z-scan technique (in the nanosecond regime). These GQDs exhibit excellent optical limiting properties, especially those synthesized at 532 nm wavelength.en_US
dc.language.isoenen_US
dc.publisherMDPIen_US
dc.relation.urihttps://doi.org/10.3390/molecules27227988en_US
dc.rights2022 MDPIen_US
dc.subjectpulsed laser irradiationen_US
dc.subjectgraphene quantum dotsen_US
dc.subjectfluorescenceen_US
dc.subjectoptical limitingen_US
dc.titleFluorescence and Nonlinear Optical Response of Graphene Quantum Dots Produced by Pulsed Laser Irradiation in Tolueneen_US
dc.typeArticleen_US
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