Escher, Andrea Bravetti, Gianluca Bertucci, Simone Comoretto, Davide Weder, Christoph Steiner, Ullrich Lova, Paola Dodero, Andrea 2024 Hybrid organic−inorganic nanostructures offersignificant potential for developing advanced functional materialswith numerous technological applications. However, the fabrica-tion process is often tedious and time-consuming. This studypresents a facile method for fabricating block copolymer-basedphotonic microspheres incorporating plasmonic gold nanopar-ticles. Specifically, the confined self-assembly of poly(styrene)-b-poly(2-vinylpyridine) in emulsion droplets allows the formation ofspherical, noniridescent, concentric lamellar structures, i.e., onion-like particles that are subsequently infiltrated with gold salt. Usingethanol as a preferential solvent allows the loading of metal ionsexclusively into the poly(2-vinylpyridine) domains, which aresubsequently reduced, leading to the in situ, spatially controlled formation of gold nanoparticles. The hybrid structures exhibit a well-defined photonic bandgap and plasmonic resonance at low gold concentrations. These results demonstrate the feasibility offabricating optically active photonic structures comprising metal nanoparticles in a block copolymer array via a simple two-stepfabrication process. application/pdf https://folia.unifr.ch/global/documents/329500 https://folia.unifr.ch/documents/329500/files/escher-et-al-2024-crafting-nanostructured-hybrid-block-copolymer-gold-nanoparticles-by-confined-self-assembly-in.pdf https://folia.unifr.ch/documents/329500/files/escheretal._supportinginformationrevised.pdf eng info:eu-repo/semantics/altIdentifier/doi/10.1021/acsmacrolett.4c00519 info:eu-repo/semantics/altIdentifier/issn/2161-1653 info:eu-repo/semantics/openAccess CC BY ACS Macro Letters. - Washington, D.C., US: American Chemical Society (ACS). - 2024, vol. 13, p. 1338-1344 Photonic microparticles block copolymers self-assembly hybrid photonic-plasmonic structures info:eu-repo/classification/udc/54 Crafting Nanostructured Hybrid Block Copolymer–Gold Nanoparticles by Confined Self-Assembly in Evaporative Droplets http://purl.org/coar/resource_type/c_6501