Golden Plasmophores with Tunable Photoluminescence and Outstanding Thermal and Photothermal Stability

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dc.citation.articleNumber2302833
dc.citation.issueNumber14
dc.citation.journalTitleAdvanced Optical Materials
dc.citation.volumeNumber12
dc.contributor.authorGharib, Mustafa
dc.contributor.authorYates, A. J.
dc.contributor.authorSanders, Stephen
dc.contributor.authorGebauer, Johannes
dc.contributor.authorGraf, Sebastian
dc.contributor.authorZiefuß, Anna Rosa
dc.contributor.authorNonappa
dc.contributor.authorKassier, Günther
dc.contributor.authorRehbock, Christoph
dc.contributor.authorBarcikowski, Stephan
dc.contributor.authorWeller, Horst
dc.contributor.authorAlabastri, Alessandro
dc.contributor.authorNordlander, Peter
dc.contributor.authorParak, Wolfgang J.
dc.contributor.authorChakraborty, Indranath
dc.date.accessioned2024-08-09T16:25:24Z
dc.date.available2024-08-09T16:25:24Z
dc.date.issued2024
dc.description.abstractAmong various hybrid nanomaterials, the combination of plasmonic nanoparticles and fluorophores in a single multifunctional nanoplatform, so-called plasmophores, has attracted significant attention in different fields such as dark field, fluorescence, and photoacoustic imaging, biosensing, photothermal, and photodynamic therapy. Herein, author report a facile and controlled synthesis route of hybrid nanoplatforms composed of fluorescent gold nanoclusters (GNCs) coupled to plasmonic gold nanorods (GNRs) using controlled silica (SiO2) dielectric spacers of different thicknesses from now on referred to as GNR@SiO2@GNC plasmophores. The results show different degrees of plasmon-enhanced fluorescence of the GNCs in their plasmophore hybrid system when placed at different distances from the plasmonic cores of the GNRs. On the other hand, these plasmophores show enhanced thermal stability compared to GNRs@CTAB (CTAB, cetyl trimethyl ammonium bromide). This results also demonstrated that upon annealing at elevated temperatures (800–1000 °C), the GNRs in the plasmophores are more thermally stable and robust than the GNRs@CTAB. More surprisingly, despite the commonly reported very low melting temperature of smaller-size nanocrystals, the GNCs in the plasmophores showed high thermal stability and do not exhibit significant structural changes at elevated temperatures (800–1000 °C).
dc.identifier.citationGharib, M., Yates, A. J., Sanders, S., Gebauer, J., Graf, S., Ziefuß, A. R., Nonappa, Kassier, G., Rehbock, C., Barcikowski, S., Weller, H., Alabastri, A., Nordlander, P., Parak, W. J., & Chakraborty, I. (2024). Golden Plasmophores with Tunable Photoluminescence and Outstanding Thermal and Photothermal Stability. Advanced Optical Materials, 12(14), 2302833. https://doi.org/10.1002/adom.202302833
dc.identifier.digitalGolden-Plasmophores
dc.identifier.doihttps://doi.org/10.1002/adom.202302833
dc.identifier.urihttps://hdl.handle.net/1911/117621
dc.language.isoeng
dc.publisherWiley
dc.rightsExcept where otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND) license.  Permission to reuse, publish, or reproduce the work beyond the terms of the license or beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleGolden Plasmophores with Tunable Photoluminescence and Outstanding Thermal and Photothermal Stability
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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